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clang-p2996/llvm/test/CodeGen/RISCV/GlobalISel/vararg.ll
bvlgah e640d9e725 [RISCV][GlobalISel] Fix legalizing ‘llvm.va_copy’ intrinsic (#86863) 
Hi, I spotted a problem when running benchmarking programs on a RISCV64
device.

## Issue

Segmentation faults only occurred while running the programs compiled
with `GlobalISel` enabled.

Here is a small but complete example (it is adopted from [Google's
benchmark
framework](95a9f0d0b4/MicroBenchmarks/libs/benchmark/src/colorprint.cc (L85-L119))
to reproduce the issue,

```cpp
#include <cstdarg>
#include <cstdio>
#include <iostream>
#include <memory>
#include <string>

std::string FormatString(const char* msg, va_list args) {
  // we might need a second shot at this, so pre-emptivly make a copy
  va_list args_cp;
  va_copy(args_cp, args);

  std::size_t size = 256;
  char local_buff[256];
  auto ret = vsnprintf(local_buff, size, msg, args_cp);

  va_end(args_cp);

  // currently there is no error handling for failure, so this is hack.
  // BM_CHECK(ret >= 0);

  if (ret == 0)  // handle empty expansion
    return {};
  else if (static_cast<size_t>(ret) < size)
    return local_buff;
  else {
    // we did not provide a long enough buffer on our first attempt.
    size = static_cast<size_t>(ret) + 1;  // + 1 for the null byte
    std::unique_ptr<char[]> buff(new char[size]);
    ret = vsnprintf(buff.get(), size, msg, args);
    // BM_CHECK(ret > 0 && (static_cast<size_t>(ret)) < size);
    return buff.get();
  }
}

std::string FormatString(const char* msg, ...) {
  va_list args;
  va_start(args, msg);
  auto tmp = FormatString(msg, args);
  va_end(args);
  return tmp;
}

int main() {
  std::string Str =
      FormatString("%-*s %13s %15s %12s", static_cast<int>(20),
                   "Benchmark", "Time", "CPU", "Iterations");
  std::cout << Str << std::endl;
}
```

Use `clang++ -fglobal-isel -o main main.cpp` to compile it.

## Cause

I have examined MIR, it shows that these segmentation faults resulted
from a small mistake about legalizing the intrinsic function
`llvm.va_copy`.


36e74cfdbd/llvm/lib/Target/RISCV/GISel/RISCVLegalizerInfo.cpp (L451-L453)

`DstLst` and `Tmp` are placed in the wrong order.

## Changes

I have tweaked the test case `CodeGen/RISCV/GlobalISel/vararg.ll` so
that `s0` is used as the frame pointer (not in all checks) which points
to the starting address of the save area. I believe that it helps reason
about how `llvm.va_copy` is handled.
2024-03-28 13:09:18 +03:00

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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 4
; RUN: sed 's/iXLen/i32/g' %s | llc -mtriple=riscv32 -global-isel -verify-machineinstrs \
; RUN: | FileCheck -check-prefixes=RV32,ILP32 %s
; RUN: sed 's/iXLen/i32/g' %s | llc -mtriple=riscv32 -global-isel -mattr=+d -verify-machineinstrs \
; RUN: | FileCheck -check-prefixes=RV32,RV32D-ILP32 %s
; RUN: sed 's/iXLen/i32/g' %s | llc -mtriple=riscv32 -global-isel -mattr=+d -target-abi ilp32f \
; RUN: -verify-machineinstrs \
; RUN: | FileCheck -check-prefixes=RV32,RV32D-ILP32F %s
; RUN: sed 's/iXLen/i32/g' %s | llc -mtriple=riscv32 -global-isel -mattr=+d -target-abi ilp32d \
; RUN: -verify-machineinstrs \
; RUN: | FileCheck -check-prefixes=RV32,RV32D-ILP32D %s
; RUN: sed 's/iXLen/i64/g' %s | llc -mtriple=riscv64 -global-isel -verify-machineinstrs \
; RUN: | FileCheck -check-prefixes=RV64,LP64 %s
; RUN: sed 's/iXLen/i64/g' %s | llc -mtriple=riscv64 -global-isel -mattr=+d -target-abi lp64f \
; RUN: -verify-machineinstrs \
; RUN: | FileCheck -check-prefixes=RV64,LP64F %s
; RUN: sed 's/iXLen/i64/g' %s | llc -mtriple=riscv64 -global-isel -mattr=+d -target-abi lp64d \
; RUN: -verify-machineinstrs \
; RUN: | FileCheck -check-prefixes=RV64,LP64D %s
; RUN: sed 's/iXLen/i64/g' %s | llc -mtriple=riscv32 -global-isel \
; RUN: -frame-pointer=all -target-abi ilp32 -verify-machineinstrs \
; RUN: | FileCheck -check-prefixes=RV32-WITHFP %s
; RUN: sed 's/iXLen/i64/g' %s | llc -mtriple=riscv64 -global-isel \
; RUN: -frame-pointer=all -target-abi lp64 -verify-machineinstrs \
; RUN: | FileCheck -check-prefixes=RV64-WITHFP %s
; The same vararg calling convention is used for ilp32/ilp32f/ilp32d and for
; lp64/lp64f/lp64d. Different CHECK lines are required due to slight
; codegen differences due to the way the f64 load operations are lowered and
; because the PseudoCALL specifies the calling convention.
; The nounwind attribute is omitted for some of the tests, to check that CFI
; directives are correctly generated.
declare void @llvm.va_start(ptr)
declare void @llvm.va_end(ptr)
declare void @notdead(ptr)
; Although frontends are recommended to not generate va_arg due to the lack of
; support for aggregate types, we test simple cases here to ensure they are
; lowered correctly
define i32 @va1(ptr %fmt, ...) {
; RV32-LABEL: va1:
; RV32: # %bb.0:
; RV32-NEXT: addi sp, sp, -48
; RV32-NEXT: .cfi_def_cfa_offset 48
; RV32-NEXT: sw a1, 20(sp)
; RV32-NEXT: sw a2, 24(sp)
; RV32-NEXT: sw a3, 28(sp)
; RV32-NEXT: sw a4, 32(sp)
; RV32-NEXT: addi a0, sp, 20
; RV32-NEXT: sw a0, 12(sp)
; RV32-NEXT: lw a0, 12(sp)
; RV32-NEXT: sw a5, 36(sp)
; RV32-NEXT: sw a6, 40(sp)
; RV32-NEXT: sw a7, 44(sp)
; RV32-NEXT: addi a1, a0, 4
; RV32-NEXT: sw a1, 12(sp)
; RV32-NEXT: lw a0, 0(a0)
; RV32-NEXT: addi sp, sp, 48
; RV32-NEXT: ret
;
; RV64-LABEL: va1:
; RV64: # %bb.0:
; RV64-NEXT: addi sp, sp, -80
; RV64-NEXT: .cfi_def_cfa_offset 80
; RV64-NEXT: sd a1, 24(sp)
; RV64-NEXT: sd a2, 32(sp)
; RV64-NEXT: sd a3, 40(sp)
; RV64-NEXT: sd a4, 48(sp)
; RV64-NEXT: sd a5, 56(sp)
; RV64-NEXT: addi a0, sp, 24
; RV64-NEXT: sd a0, 8(sp)
; RV64-NEXT: lw a0, 12(sp)
; RV64-NEXT: lwu a1, 8(sp)
; RV64-NEXT: sd a6, 64(sp)
; RV64-NEXT: sd a7, 72(sp)
; RV64-NEXT: slli a0, a0, 32
; RV64-NEXT: or a0, a0, a1
; RV64-NEXT: addi a1, a0, 4
; RV64-NEXT: srli a2, a1, 32
; RV64-NEXT: sw a1, 8(sp)
; RV64-NEXT: sw a2, 12(sp)
; RV64-NEXT: lw a0, 0(a0)
; RV64-NEXT: addi sp, sp, 80
; RV64-NEXT: ret
;
; RV32-WITHFP-LABEL: va1:
; RV32-WITHFP: # %bb.0:
; RV32-WITHFP-NEXT: addi sp, sp, -48
; RV32-WITHFP-NEXT: .cfi_def_cfa_offset 48
; RV32-WITHFP-NEXT: sw ra, 12(sp) # 4-byte Folded Spill
; RV32-WITHFP-NEXT: sw s0, 8(sp) # 4-byte Folded Spill
; RV32-WITHFP-NEXT: .cfi_offset ra, -36
; RV32-WITHFP-NEXT: .cfi_offset s0, -40
; RV32-WITHFP-NEXT: addi s0, sp, 16
; RV32-WITHFP-NEXT: .cfi_def_cfa s0, 32
; RV32-WITHFP-NEXT: sw a1, 4(s0)
; RV32-WITHFP-NEXT: sw a2, 8(s0)
; RV32-WITHFP-NEXT: sw a3, 12(s0)
; RV32-WITHFP-NEXT: sw a4, 16(s0)
; RV32-WITHFP-NEXT: addi a0, s0, 4
; RV32-WITHFP-NEXT: sw a0, -12(s0)
; RV32-WITHFP-NEXT: lw a0, -12(s0)
; RV32-WITHFP-NEXT: sw a5, 20(s0)
; RV32-WITHFP-NEXT: sw a6, 24(s0)
; RV32-WITHFP-NEXT: sw a7, 28(s0)
; RV32-WITHFP-NEXT: addi a1, a0, 4
; RV32-WITHFP-NEXT: sw a1, -12(s0)
; RV32-WITHFP-NEXT: lw a0, 0(a0)
; RV32-WITHFP-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
; RV32-WITHFP-NEXT: lw s0, 8(sp) # 4-byte Folded Reload
; RV32-WITHFP-NEXT: addi sp, sp, 48
; RV32-WITHFP-NEXT: ret
;
; RV64-WITHFP-LABEL: va1:
; RV64-WITHFP: # %bb.0:
; RV64-WITHFP-NEXT: addi sp, sp, -96
; RV64-WITHFP-NEXT: .cfi_def_cfa_offset 96
; RV64-WITHFP-NEXT: sd ra, 24(sp) # 8-byte Folded Spill
; RV64-WITHFP-NEXT: sd s0, 16(sp) # 8-byte Folded Spill
; RV64-WITHFP-NEXT: .cfi_offset ra, -72
; RV64-WITHFP-NEXT: .cfi_offset s0, -80
; RV64-WITHFP-NEXT: addi s0, sp, 32
; RV64-WITHFP-NEXT: .cfi_def_cfa s0, 64
; RV64-WITHFP-NEXT: sd a1, 8(s0)
; RV64-WITHFP-NEXT: sd a2, 16(s0)
; RV64-WITHFP-NEXT: sd a3, 24(s0)
; RV64-WITHFP-NEXT: sd a4, 32(s0)
; RV64-WITHFP-NEXT: sd a5, 40(s0)
; RV64-WITHFP-NEXT: addi a0, s0, 8
; RV64-WITHFP-NEXT: sd a0, -24(s0)
; RV64-WITHFP-NEXT: lw a0, -20(s0)
; RV64-WITHFP-NEXT: lwu a1, -24(s0)
; RV64-WITHFP-NEXT: sd a6, 48(s0)
; RV64-WITHFP-NEXT: sd a7, 56(s0)
; RV64-WITHFP-NEXT: slli a0, a0, 32
; RV64-WITHFP-NEXT: or a0, a0, a1
; RV64-WITHFP-NEXT: addi a1, a0, 4
; RV64-WITHFP-NEXT: srli a2, a1, 32
; RV64-WITHFP-NEXT: sw a1, -24(s0)
; RV64-WITHFP-NEXT: sw a2, -20(s0)
; RV64-WITHFP-NEXT: lw a0, 0(a0)
; RV64-WITHFP-NEXT: ld ra, 24(sp) # 8-byte Folded Reload
; RV64-WITHFP-NEXT: ld s0, 16(sp) # 8-byte Folded Reload
; RV64-WITHFP-NEXT: addi sp, sp, 96
; RV64-WITHFP-NEXT: ret
%va = alloca ptr
call void @llvm.va_start(ptr %va)
%argp.cur = load ptr, ptr %va, align 4
%argp.next = getelementptr inbounds i8, ptr %argp.cur, i32 4
store ptr %argp.next, ptr %va, align 4
%1 = load i32, ptr %argp.cur, align 4
call void @llvm.va_end(ptr %va)
ret i32 %1
}
define i32 @va1_va_arg(ptr %fmt, ...) nounwind {
; RV32-LABEL: va1_va_arg:
; RV32: # %bb.0:
; RV32-NEXT: addi sp, sp, -48
; RV32-NEXT: sw a1, 20(sp)
; RV32-NEXT: sw a2, 24(sp)
; RV32-NEXT: sw a3, 28(sp)
; RV32-NEXT: sw a4, 32(sp)
; RV32-NEXT: sw a5, 36(sp)
; RV32-NEXT: sw a6, 40(sp)
; RV32-NEXT: sw a7, 44(sp)
; RV32-NEXT: addi a0, sp, 20
; RV32-NEXT: sw a0, 12(sp)
; RV32-NEXT: lw a0, 12(sp)
; RV32-NEXT: addi a0, a0, 3
; RV32-NEXT: andi a0, a0, -4
; RV32-NEXT: addi a1, a0, 4
; RV32-NEXT: sw a1, 12(sp)
; RV32-NEXT: lw a0, 0(a0)
; RV32-NEXT: addi sp, sp, 48
; RV32-NEXT: ret
;
; RV64-LABEL: va1_va_arg:
; RV64: # %bb.0:
; RV64-NEXT: addi sp, sp, -80
; RV64-NEXT: sd a1, 24(sp)
; RV64-NEXT: sd a2, 32(sp)
; RV64-NEXT: sd a3, 40(sp)
; RV64-NEXT: sd a4, 48(sp)
; RV64-NEXT: sd a5, 56(sp)
; RV64-NEXT: sd a6, 64(sp)
; RV64-NEXT: sd a7, 72(sp)
; RV64-NEXT: addi a0, sp, 24
; RV64-NEXT: sd a0, 8(sp)
; RV64-NEXT: ld a0, 8(sp)
; RV64-NEXT: addi a0, a0, 3
; RV64-NEXT: andi a0, a0, -4
; RV64-NEXT: addi a1, a0, 4
; RV64-NEXT: sd a1, 8(sp)
; RV64-NEXT: lw a0, 0(a0)
; RV64-NEXT: addi sp, sp, 80
; RV64-NEXT: ret
;
; RV32-WITHFP-LABEL: va1_va_arg:
; RV32-WITHFP: # %bb.0:
; RV32-WITHFP-NEXT: addi sp, sp, -48
; RV32-WITHFP-NEXT: sw ra, 12(sp) # 4-byte Folded Spill
; RV32-WITHFP-NEXT: sw s0, 8(sp) # 4-byte Folded Spill
; RV32-WITHFP-NEXT: addi s0, sp, 16
; RV32-WITHFP-NEXT: sw a1, 4(s0)
; RV32-WITHFP-NEXT: sw a2, 8(s0)
; RV32-WITHFP-NEXT: sw a3, 12(s0)
; RV32-WITHFP-NEXT: sw a4, 16(s0)
; RV32-WITHFP-NEXT: sw a5, 20(s0)
; RV32-WITHFP-NEXT: sw a6, 24(s0)
; RV32-WITHFP-NEXT: sw a7, 28(s0)
; RV32-WITHFP-NEXT: addi a0, s0, 4
; RV32-WITHFP-NEXT: sw a0, -12(s0)
; RV32-WITHFP-NEXT: lw a0, -12(s0)
; RV32-WITHFP-NEXT: addi a0, a0, 3
; RV32-WITHFP-NEXT: andi a0, a0, -4
; RV32-WITHFP-NEXT: addi a1, a0, 4
; RV32-WITHFP-NEXT: sw a1, -12(s0)
; RV32-WITHFP-NEXT: lw a0, 0(a0)
; RV32-WITHFP-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
; RV32-WITHFP-NEXT: lw s0, 8(sp) # 4-byte Folded Reload
; RV32-WITHFP-NEXT: addi sp, sp, 48
; RV32-WITHFP-NEXT: ret
;
; RV64-WITHFP-LABEL: va1_va_arg:
; RV64-WITHFP: # %bb.0:
; RV64-WITHFP-NEXT: addi sp, sp, -96
; RV64-WITHFP-NEXT: sd ra, 24(sp) # 8-byte Folded Spill
; RV64-WITHFP-NEXT: sd s0, 16(sp) # 8-byte Folded Spill
; RV64-WITHFP-NEXT: addi s0, sp, 32
; RV64-WITHFP-NEXT: sd a1, 8(s0)
; RV64-WITHFP-NEXT: sd a2, 16(s0)
; RV64-WITHFP-NEXT: sd a3, 24(s0)
; RV64-WITHFP-NEXT: sd a4, 32(s0)
; RV64-WITHFP-NEXT: sd a5, 40(s0)
; RV64-WITHFP-NEXT: sd a6, 48(s0)
; RV64-WITHFP-NEXT: sd a7, 56(s0)
; RV64-WITHFP-NEXT: addi a0, s0, 8
; RV64-WITHFP-NEXT: sd a0, -24(s0)
; RV64-WITHFP-NEXT: ld a0, -24(s0)
; RV64-WITHFP-NEXT: addi a0, a0, 3
; RV64-WITHFP-NEXT: andi a0, a0, -4
; RV64-WITHFP-NEXT: addi a1, a0, 4
; RV64-WITHFP-NEXT: sd a1, -24(s0)
; RV64-WITHFP-NEXT: lw a0, 0(a0)
; RV64-WITHFP-NEXT: ld ra, 24(sp) # 8-byte Folded Reload
; RV64-WITHFP-NEXT: ld s0, 16(sp) # 8-byte Folded Reload
; RV64-WITHFP-NEXT: addi sp, sp, 96
; RV64-WITHFP-NEXT: ret
%va = alloca ptr
call void @llvm.va_start(ptr %va)
%1 = va_arg ptr %va, i32
call void @llvm.va_end(ptr %va)
ret i32 %1
}
; Ensure the adjustment when restoring the stack pointer using the frame
; pointer is correct
define i32 @va1_va_arg_alloca(ptr %fmt, ...) nounwind {
; RV32-LABEL: va1_va_arg_alloca:
; RV32: # %bb.0:
; RV32-NEXT: addi sp, sp, -48
; RV32-NEXT: sw ra, 12(sp) # 4-byte Folded Spill
; RV32-NEXT: sw s0, 8(sp) # 4-byte Folded Spill
; RV32-NEXT: sw s1, 4(sp) # 4-byte Folded Spill
; RV32-NEXT: addi s0, sp, 16
; RV32-NEXT: sw a1, 4(s0)
; RV32-NEXT: sw a2, 8(s0)
; RV32-NEXT: sw a3, 12(s0)
; RV32-NEXT: sw a4, 16(s0)
; RV32-NEXT: sw a5, 20(s0)
; RV32-NEXT: sw a6, 24(s0)
; RV32-NEXT: sw a7, 28(s0)
; RV32-NEXT: addi a0, s0, 4
; RV32-NEXT: sw a0, -16(s0)
; RV32-NEXT: lw a0, -16(s0)
; RV32-NEXT: addi a0, a0, 3
; RV32-NEXT: andi a0, a0, -4
; RV32-NEXT: addi a1, a0, 4
; RV32-NEXT: sw a1, -16(s0)
; RV32-NEXT: lw s1, 0(a0)
; RV32-NEXT: addi a0, s1, 15
; RV32-NEXT: andi a0, a0, -16
; RV32-NEXT: sub a0, sp, a0
; RV32-NEXT: mv sp, a0
; RV32-NEXT: call notdead
; RV32-NEXT: mv a0, s1
; RV32-NEXT: addi sp, s0, -16
; RV32-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
; RV32-NEXT: lw s0, 8(sp) # 4-byte Folded Reload
; RV32-NEXT: lw s1, 4(sp) # 4-byte Folded Reload
; RV32-NEXT: addi sp, sp, 48
; RV32-NEXT: ret
;
; RV64-LABEL: va1_va_arg_alloca:
; RV64: # %bb.0:
; RV64-NEXT: addi sp, sp, -96
; RV64-NEXT: sd ra, 24(sp) # 8-byte Folded Spill
; RV64-NEXT: sd s0, 16(sp) # 8-byte Folded Spill
; RV64-NEXT: sd s1, 8(sp) # 8-byte Folded Spill
; RV64-NEXT: addi s0, sp, 32
; RV64-NEXT: sd a1, 8(s0)
; RV64-NEXT: sd a2, 16(s0)
; RV64-NEXT: sd a3, 24(s0)
; RV64-NEXT: sd a4, 32(s0)
; RV64-NEXT: sd a5, 40(s0)
; RV64-NEXT: sd a6, 48(s0)
; RV64-NEXT: sd a7, 56(s0)
; RV64-NEXT: addi a0, s0, 8
; RV64-NEXT: sd a0, -32(s0)
; RV64-NEXT: ld a0, -32(s0)
; RV64-NEXT: addi a0, a0, 3
; RV64-NEXT: andi a0, a0, -4
; RV64-NEXT: addi a1, a0, 4
; RV64-NEXT: sd a1, -32(s0)
; RV64-NEXT: lw s1, 0(a0)
; RV64-NEXT: slli a0, s1, 32
; RV64-NEXT: srli a0, a0, 32
; RV64-NEXT: addi a0, a0, 15
; RV64-NEXT: andi a0, a0, -16
; RV64-NEXT: sub a0, sp, a0
; RV64-NEXT: mv sp, a0
; RV64-NEXT: call notdead
; RV64-NEXT: mv a0, s1
; RV64-NEXT: addi sp, s0, -32
; RV64-NEXT: ld ra, 24(sp) # 8-byte Folded Reload
; RV64-NEXT: ld s0, 16(sp) # 8-byte Folded Reload
; RV64-NEXT: ld s1, 8(sp) # 8-byte Folded Reload
; RV64-NEXT: addi sp, sp, 96
; RV64-NEXT: ret
;
; RV32-WITHFP-LABEL: va1_va_arg_alloca:
; RV32-WITHFP: # %bb.0:
; RV32-WITHFP-NEXT: addi sp, sp, -48
; RV32-WITHFP-NEXT: sw ra, 12(sp) # 4-byte Folded Spill
; RV32-WITHFP-NEXT: sw s0, 8(sp) # 4-byte Folded Spill
; RV32-WITHFP-NEXT: sw s1, 4(sp) # 4-byte Folded Spill
; RV32-WITHFP-NEXT: addi s0, sp, 16
; RV32-WITHFP-NEXT: sw a1, 4(s0)
; RV32-WITHFP-NEXT: sw a2, 8(s0)
; RV32-WITHFP-NEXT: sw a3, 12(s0)
; RV32-WITHFP-NEXT: sw a4, 16(s0)
; RV32-WITHFP-NEXT: sw a5, 20(s0)
; RV32-WITHFP-NEXT: sw a6, 24(s0)
; RV32-WITHFP-NEXT: sw a7, 28(s0)
; RV32-WITHFP-NEXT: addi a0, s0, 4
; RV32-WITHFP-NEXT: sw a0, -16(s0)
; RV32-WITHFP-NEXT: lw a0, -16(s0)
; RV32-WITHFP-NEXT: addi a0, a0, 3
; RV32-WITHFP-NEXT: andi a0, a0, -4
; RV32-WITHFP-NEXT: addi a1, a0, 4
; RV32-WITHFP-NEXT: sw a1, -16(s0)
; RV32-WITHFP-NEXT: lw s1, 0(a0)
; RV32-WITHFP-NEXT: addi a0, s1, 15
; RV32-WITHFP-NEXT: andi a0, a0, -16
; RV32-WITHFP-NEXT: sub a0, sp, a0
; RV32-WITHFP-NEXT: mv sp, a0
; RV32-WITHFP-NEXT: call notdead
; RV32-WITHFP-NEXT: mv a0, s1
; RV32-WITHFP-NEXT: addi sp, s0, -16
; RV32-WITHFP-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
; RV32-WITHFP-NEXT: lw s0, 8(sp) # 4-byte Folded Reload
; RV32-WITHFP-NEXT: lw s1, 4(sp) # 4-byte Folded Reload
; RV32-WITHFP-NEXT: addi sp, sp, 48
; RV32-WITHFP-NEXT: ret
;
; RV64-WITHFP-LABEL: va1_va_arg_alloca:
; RV64-WITHFP: # %bb.0:
; RV64-WITHFP-NEXT: addi sp, sp, -96
; RV64-WITHFP-NEXT: sd ra, 24(sp) # 8-byte Folded Spill
; RV64-WITHFP-NEXT: sd s0, 16(sp) # 8-byte Folded Spill
; RV64-WITHFP-NEXT: sd s1, 8(sp) # 8-byte Folded Spill
; RV64-WITHFP-NEXT: addi s0, sp, 32
; RV64-WITHFP-NEXT: sd a1, 8(s0)
; RV64-WITHFP-NEXT: sd a2, 16(s0)
; RV64-WITHFP-NEXT: sd a3, 24(s0)
; RV64-WITHFP-NEXT: sd a4, 32(s0)
; RV64-WITHFP-NEXT: sd a5, 40(s0)
; RV64-WITHFP-NEXT: sd a6, 48(s0)
; RV64-WITHFP-NEXT: sd a7, 56(s0)
; RV64-WITHFP-NEXT: addi a0, s0, 8
; RV64-WITHFP-NEXT: sd a0, -32(s0)
; RV64-WITHFP-NEXT: ld a0, -32(s0)
; RV64-WITHFP-NEXT: addi a0, a0, 3
; RV64-WITHFP-NEXT: andi a0, a0, -4
; RV64-WITHFP-NEXT: addi a1, a0, 4
; RV64-WITHFP-NEXT: sd a1, -32(s0)
; RV64-WITHFP-NEXT: lw s1, 0(a0)
; RV64-WITHFP-NEXT: slli a0, s1, 32
; RV64-WITHFP-NEXT: srli a0, a0, 32
; RV64-WITHFP-NEXT: addi a0, a0, 15
; RV64-WITHFP-NEXT: andi a0, a0, -16
; RV64-WITHFP-NEXT: sub a0, sp, a0
; RV64-WITHFP-NEXT: mv sp, a0
; RV64-WITHFP-NEXT: call notdead
; RV64-WITHFP-NEXT: mv a0, s1
; RV64-WITHFP-NEXT: addi sp, s0, -32
; RV64-WITHFP-NEXT: ld ra, 24(sp) # 8-byte Folded Reload
; RV64-WITHFP-NEXT: ld s0, 16(sp) # 8-byte Folded Reload
; RV64-WITHFP-NEXT: ld s1, 8(sp) # 8-byte Folded Reload
; RV64-WITHFP-NEXT: addi sp, sp, 96
; RV64-WITHFP-NEXT: ret
%va = alloca ptr
call void @llvm.va_start(ptr %va)
%1 = va_arg ptr %va, i32
%2 = alloca i8, i32 %1
call void @notdead(ptr %2)
call void @llvm.va_end(ptr %va)
ret i32 %1
}
define void @va1_caller() nounwind {
; RV32-LABEL: va1_caller:
; RV32: # %bb.0:
; RV32-NEXT: addi sp, sp, -16
; RV32-NEXT: sw ra, 12(sp) # 4-byte Folded Spill
; RV32-NEXT: lui a3, 261888
; RV32-NEXT: li a4, 2
; RV32-NEXT: li a2, 0
; RV32-NEXT: call va1
; RV32-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
; RV32-NEXT: addi sp, sp, 16
; RV32-NEXT: ret
;
; LP64-LABEL: va1_caller:
; LP64: # %bb.0:
; LP64-NEXT: addi sp, sp, -16
; LP64-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
; LP64-NEXT: lui a0, %hi(.LCPI3_0)
; LP64-NEXT: ld a1, %lo(.LCPI3_0)(a0)
; LP64-NEXT: li a2, 2
; LP64-NEXT: call va1
; LP64-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
; LP64-NEXT: addi sp, sp, 16
; LP64-NEXT: ret
;
; LP64F-LABEL: va1_caller:
; LP64F: # %bb.0:
; LP64F-NEXT: addi sp, sp, -16
; LP64F-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
; LP64F-NEXT: li a0, 1023
; LP64F-NEXT: slli a0, a0, 52
; LP64F-NEXT: fmv.d.x fa5, a0
; LP64F-NEXT: li a2, 2
; LP64F-NEXT: fmv.x.d a1, fa5
; LP64F-NEXT: call va1
; LP64F-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
; LP64F-NEXT: addi sp, sp, 16
; LP64F-NEXT: ret
;
; LP64D-LABEL: va1_caller:
; LP64D: # %bb.0:
; LP64D-NEXT: addi sp, sp, -16
; LP64D-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
; LP64D-NEXT: li a0, 1023
; LP64D-NEXT: slli a0, a0, 52
; LP64D-NEXT: fmv.d.x fa5, a0
; LP64D-NEXT: li a2, 2
; LP64D-NEXT: fmv.x.d a1, fa5
; LP64D-NEXT: call va1
; LP64D-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
; LP64D-NEXT: addi sp, sp, 16
; LP64D-NEXT: ret
;
; RV32-WITHFP-LABEL: va1_caller:
; RV32-WITHFP: # %bb.0:
; RV32-WITHFP-NEXT: addi sp, sp, -16
; RV32-WITHFP-NEXT: sw ra, 12(sp) # 4-byte Folded Spill
; RV32-WITHFP-NEXT: sw s0, 8(sp) # 4-byte Folded Spill
; RV32-WITHFP-NEXT: addi s0, sp, 16
; RV32-WITHFP-NEXT: lui a3, 261888
; RV32-WITHFP-NEXT: li a4, 2
; RV32-WITHFP-NEXT: li a2, 0
; RV32-WITHFP-NEXT: call va1
; RV32-WITHFP-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
; RV32-WITHFP-NEXT: lw s0, 8(sp) # 4-byte Folded Reload
; RV32-WITHFP-NEXT: addi sp, sp, 16
; RV32-WITHFP-NEXT: ret
;
; RV64-WITHFP-LABEL: va1_caller:
; RV64-WITHFP: # %bb.0:
; RV64-WITHFP-NEXT: addi sp, sp, -16
; RV64-WITHFP-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
; RV64-WITHFP-NEXT: sd s0, 0(sp) # 8-byte Folded Spill
; RV64-WITHFP-NEXT: addi s0, sp, 16
; RV64-WITHFP-NEXT: lui a0, %hi(.LCPI3_0)
; RV64-WITHFP-NEXT: ld a1, %lo(.LCPI3_0)(a0)
; RV64-WITHFP-NEXT: li a2, 2
; RV64-WITHFP-NEXT: call va1
; RV64-WITHFP-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
; RV64-WITHFP-NEXT: ld s0, 0(sp) # 8-byte Folded Reload
; RV64-WITHFP-NEXT: addi sp, sp, 16
; RV64-WITHFP-NEXT: ret
%1 = call i32 (ptr, ...) @va1(ptr undef, double 1.0, i32 2)
ret void
}
; Ensure that 2x xlen size+alignment varargs are accessed via an "aligned"
; register pair (where the first register is even-numbered).
define i64 @va2(ptr %fmt, ...) nounwind {
; ILP32-LABEL: va2:
; ILP32: # %bb.0:
; ILP32-NEXT: addi sp, sp, -48
; ILP32-NEXT: sw a1, 20(sp)
; ILP32-NEXT: sw a2, 24(sp)
; ILP32-NEXT: sw a3, 28(sp)
; ILP32-NEXT: sw a4, 32(sp)
; ILP32-NEXT: addi a0, sp, 20
; ILP32-NEXT: sw a0, 12(sp)
; ILP32-NEXT: lw a0, 12(sp)
; ILP32-NEXT: sw a5, 36(sp)
; ILP32-NEXT: sw a6, 40(sp)
; ILP32-NEXT: sw a7, 44(sp)
; ILP32-NEXT: addi a1, a0, 7
; ILP32-NEXT: andi a1, a1, -8
; ILP32-NEXT: addi a0, a0, 15
; ILP32-NEXT: sw a0, 12(sp)
; ILP32-NEXT: lw a0, 0(a1)
; ILP32-NEXT: lw a1, 4(a1)
; ILP32-NEXT: addi sp, sp, 48
; ILP32-NEXT: ret
;
; RV32D-ILP32-LABEL: va2:
; RV32D-ILP32: # %bb.0:
; RV32D-ILP32-NEXT: addi sp, sp, -48
; RV32D-ILP32-NEXT: sw a1, 20(sp)
; RV32D-ILP32-NEXT: sw a2, 24(sp)
; RV32D-ILP32-NEXT: sw a3, 28(sp)
; RV32D-ILP32-NEXT: sw a4, 32(sp)
; RV32D-ILP32-NEXT: addi a0, sp, 20
; RV32D-ILP32-NEXT: sw a0, 12(sp)
; RV32D-ILP32-NEXT: lw a0, 12(sp)
; RV32D-ILP32-NEXT: sw a5, 36(sp)
; RV32D-ILP32-NEXT: sw a6, 40(sp)
; RV32D-ILP32-NEXT: sw a7, 44(sp)
; RV32D-ILP32-NEXT: addi a1, a0, 7
; RV32D-ILP32-NEXT: andi a1, a1, -8
; RV32D-ILP32-NEXT: fld fa5, 0(a1)
; RV32D-ILP32-NEXT: addi a0, a0, 15
; RV32D-ILP32-NEXT: sw a0, 12(sp)
; RV32D-ILP32-NEXT: fsd fa5, 0(sp)
; RV32D-ILP32-NEXT: lw a0, 0(sp)
; RV32D-ILP32-NEXT: lw a1, 4(sp)
; RV32D-ILP32-NEXT: addi sp, sp, 48
; RV32D-ILP32-NEXT: ret
;
; RV32D-ILP32F-LABEL: va2:
; RV32D-ILP32F: # %bb.0:
; RV32D-ILP32F-NEXT: addi sp, sp, -48
; RV32D-ILP32F-NEXT: sw a1, 20(sp)
; RV32D-ILP32F-NEXT: sw a2, 24(sp)
; RV32D-ILP32F-NEXT: sw a3, 28(sp)
; RV32D-ILP32F-NEXT: sw a4, 32(sp)
; RV32D-ILP32F-NEXT: addi a0, sp, 20
; RV32D-ILP32F-NEXT: sw a0, 12(sp)
; RV32D-ILP32F-NEXT: lw a0, 12(sp)
; RV32D-ILP32F-NEXT: sw a5, 36(sp)
; RV32D-ILP32F-NEXT: sw a6, 40(sp)
; RV32D-ILP32F-NEXT: sw a7, 44(sp)
; RV32D-ILP32F-NEXT: addi a1, a0, 7
; RV32D-ILP32F-NEXT: andi a1, a1, -8
; RV32D-ILP32F-NEXT: fld fa5, 0(a1)
; RV32D-ILP32F-NEXT: addi a0, a0, 15
; RV32D-ILP32F-NEXT: sw a0, 12(sp)
; RV32D-ILP32F-NEXT: fsd fa5, 0(sp)
; RV32D-ILP32F-NEXT: lw a0, 0(sp)
; RV32D-ILP32F-NEXT: lw a1, 4(sp)
; RV32D-ILP32F-NEXT: addi sp, sp, 48
; RV32D-ILP32F-NEXT: ret
;
; RV32D-ILP32D-LABEL: va2:
; RV32D-ILP32D: # %bb.0:
; RV32D-ILP32D-NEXT: addi sp, sp, -48
; RV32D-ILP32D-NEXT: sw a1, 20(sp)
; RV32D-ILP32D-NEXT: sw a2, 24(sp)
; RV32D-ILP32D-NEXT: sw a3, 28(sp)
; RV32D-ILP32D-NEXT: sw a4, 32(sp)
; RV32D-ILP32D-NEXT: addi a0, sp, 20
; RV32D-ILP32D-NEXT: sw a0, 12(sp)
; RV32D-ILP32D-NEXT: lw a0, 12(sp)
; RV32D-ILP32D-NEXT: sw a5, 36(sp)
; RV32D-ILP32D-NEXT: sw a6, 40(sp)
; RV32D-ILP32D-NEXT: sw a7, 44(sp)
; RV32D-ILP32D-NEXT: addi a1, a0, 7
; RV32D-ILP32D-NEXT: andi a1, a1, -8
; RV32D-ILP32D-NEXT: fld fa5, 0(a1)
; RV32D-ILP32D-NEXT: addi a0, a0, 15
; RV32D-ILP32D-NEXT: sw a0, 12(sp)
; RV32D-ILP32D-NEXT: fsd fa5, 0(sp)
; RV32D-ILP32D-NEXT: lw a0, 0(sp)
; RV32D-ILP32D-NEXT: lw a1, 4(sp)
; RV32D-ILP32D-NEXT: addi sp, sp, 48
; RV32D-ILP32D-NEXT: ret
;
; RV64-LABEL: va2:
; RV64: # %bb.0:
; RV64-NEXT: addi sp, sp, -80
; RV64-NEXT: sd a1, 24(sp)
; RV64-NEXT: sd a2, 32(sp)
; RV64-NEXT: sd a3, 40(sp)
; RV64-NEXT: sd a4, 48(sp)
; RV64-NEXT: addi a0, sp, 24
; RV64-NEXT: sd a0, 8(sp)
; RV64-NEXT: ld a0, 8(sp)
; RV64-NEXT: sd a5, 56(sp)
; RV64-NEXT: sd a6, 64(sp)
; RV64-NEXT: sd a7, 72(sp)
; RV64-NEXT: addi a1, a0, 7
; RV64-NEXT: andi a1, a1, -8
; RV64-NEXT: addi a0, a0, 15
; RV64-NEXT: sd a0, 8(sp)
; RV64-NEXT: ld a0, 0(a1)
; RV64-NEXT: addi sp, sp, 80
; RV64-NEXT: ret
;
; RV32-WITHFP-LABEL: va2:
; RV32-WITHFP: # %bb.0:
; RV32-WITHFP-NEXT: addi sp, sp, -48
; RV32-WITHFP-NEXT: sw ra, 12(sp) # 4-byte Folded Spill
; RV32-WITHFP-NEXT: sw s0, 8(sp) # 4-byte Folded Spill
; RV32-WITHFP-NEXT: addi s0, sp, 16
; RV32-WITHFP-NEXT: sw a1, 4(s0)
; RV32-WITHFP-NEXT: sw a2, 8(s0)
; RV32-WITHFP-NEXT: sw a3, 12(s0)
; RV32-WITHFP-NEXT: sw a4, 16(s0)
; RV32-WITHFP-NEXT: addi a0, s0, 4
; RV32-WITHFP-NEXT: sw a0, -12(s0)
; RV32-WITHFP-NEXT: lw a0, -12(s0)
; RV32-WITHFP-NEXT: sw a5, 20(s0)
; RV32-WITHFP-NEXT: sw a6, 24(s0)
; RV32-WITHFP-NEXT: sw a7, 28(s0)
; RV32-WITHFP-NEXT: addi a0, a0, 7
; RV32-WITHFP-NEXT: andi a1, a0, -8
; RV32-WITHFP-NEXT: addi a0, a0, 8
; RV32-WITHFP-NEXT: sw a0, -12(s0)
; RV32-WITHFP-NEXT: lw a0, 0(a1)
; RV32-WITHFP-NEXT: lw a1, 4(a1)
; RV32-WITHFP-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
; RV32-WITHFP-NEXT: lw s0, 8(sp) # 4-byte Folded Reload
; RV32-WITHFP-NEXT: addi sp, sp, 48
; RV32-WITHFP-NEXT: ret
;
; RV64-WITHFP-LABEL: va2:
; RV64-WITHFP: # %bb.0:
; RV64-WITHFP-NEXT: addi sp, sp, -96
; RV64-WITHFP-NEXT: sd ra, 24(sp) # 8-byte Folded Spill
; RV64-WITHFP-NEXT: sd s0, 16(sp) # 8-byte Folded Spill
; RV64-WITHFP-NEXT: addi s0, sp, 32
; RV64-WITHFP-NEXT: sd a1, 8(s0)
; RV64-WITHFP-NEXT: sd a2, 16(s0)
; RV64-WITHFP-NEXT: sd a3, 24(s0)
; RV64-WITHFP-NEXT: sd a4, 32(s0)
; RV64-WITHFP-NEXT: addi a0, s0, 8
; RV64-WITHFP-NEXT: sd a0, -24(s0)
; RV64-WITHFP-NEXT: ld a0, -24(s0)
; RV64-WITHFP-NEXT: sd a5, 40(s0)
; RV64-WITHFP-NEXT: sd a6, 48(s0)
; RV64-WITHFP-NEXT: sd a7, 56(s0)
; RV64-WITHFP-NEXT: addi a1, a0, 7
; RV64-WITHFP-NEXT: andi a1, a1, -8
; RV64-WITHFP-NEXT: addi a0, a0, 15
; RV64-WITHFP-NEXT: sd a0, -24(s0)
; RV64-WITHFP-NEXT: ld a0, 0(a1)
; RV64-WITHFP-NEXT: ld ra, 24(sp) # 8-byte Folded Reload
; RV64-WITHFP-NEXT: ld s0, 16(sp) # 8-byte Folded Reload
; RV64-WITHFP-NEXT: addi sp, sp, 96
; RV64-WITHFP-NEXT: ret
%va = alloca ptr
call void @llvm.va_start(ptr %va)
%argp.cur = load ptr, ptr %va
%ptrint = ptrtoint ptr %argp.cur to iXLen
%1 = add iXLen %ptrint, 7
%2 = and iXLen %1, -8
%argp.cur.aligned = inttoptr iXLen %1 to ptr
%argp.next = getelementptr inbounds i8, ptr %argp.cur.aligned, i32 8
store ptr %argp.next, ptr %va
%3 = inttoptr iXLen %2 to ptr
%4 = load double, ptr %3, align 8
%5 = bitcast double %4 to i64
call void @llvm.va_end(ptr %va)
ret i64 %5
}
; This test is slightly different than the SelectionDAG counterpart because
; narrowScalar and widenScalar for G_VAARG on types outside of [s32, sXLen]
; are not implemented yet.
define i64 @va2_va_arg(ptr %fmt, ...) nounwind {
; RV32-LABEL: va2_va_arg:
; RV32: # %bb.0:
; RV32-NEXT: addi sp, sp, -48
; RV32-NEXT: sw a1, 20(sp)
; RV32-NEXT: sw a2, 24(sp)
; RV32-NEXT: sw a3, 28(sp)
; RV32-NEXT: sw a4, 32(sp)
; RV32-NEXT: sw a5, 36(sp)
; RV32-NEXT: sw a6, 40(sp)
; RV32-NEXT: sw a7, 44(sp)
; RV32-NEXT: addi a0, sp, 20
; RV32-NEXT: sw a0, 12(sp)
; RV32-NEXT: lw a0, 12(sp)
; RV32-NEXT: addi a0, a0, 3
; RV32-NEXT: andi a0, a0, -4
; RV32-NEXT: addi a1, a0, 4
; RV32-NEXT: sw a1, 12(sp)
; RV32-NEXT: lw a0, 0(a0)
; RV32-NEXT: li a1, 0
; RV32-NEXT: addi sp, sp, 48
; RV32-NEXT: ret
;
; RV64-LABEL: va2_va_arg:
; RV64: # %bb.0:
; RV64-NEXT: addi sp, sp, -80
; RV64-NEXT: sd a1, 24(sp)
; RV64-NEXT: sd a2, 32(sp)
; RV64-NEXT: sd a3, 40(sp)
; RV64-NEXT: sd a4, 48(sp)
; RV64-NEXT: sd a5, 56(sp)
; RV64-NEXT: sd a6, 64(sp)
; RV64-NEXT: sd a7, 72(sp)
; RV64-NEXT: addi a0, sp, 24
; RV64-NEXT: sd a0, 8(sp)
; RV64-NEXT: ld a0, 8(sp)
; RV64-NEXT: addi a0, a0, 3
; RV64-NEXT: andi a0, a0, -4
; RV64-NEXT: addi a1, a0, 4
; RV64-NEXT: sd a1, 8(sp)
; RV64-NEXT: lw a0, 0(a0)
; RV64-NEXT: slli a0, a0, 32
; RV64-NEXT: srli a0, a0, 32
; RV64-NEXT: addi sp, sp, 80
; RV64-NEXT: ret
;
; RV32-WITHFP-LABEL: va2_va_arg:
; RV32-WITHFP: # %bb.0:
; RV32-WITHFP-NEXT: addi sp, sp, -48
; RV32-WITHFP-NEXT: sw ra, 12(sp) # 4-byte Folded Spill
; RV32-WITHFP-NEXT: sw s0, 8(sp) # 4-byte Folded Spill
; RV32-WITHFP-NEXT: addi s0, sp, 16
; RV32-WITHFP-NEXT: sw a1, 4(s0)
; RV32-WITHFP-NEXT: sw a2, 8(s0)
; RV32-WITHFP-NEXT: sw a3, 12(s0)
; RV32-WITHFP-NEXT: sw a4, 16(s0)
; RV32-WITHFP-NEXT: sw a5, 20(s0)
; RV32-WITHFP-NEXT: sw a6, 24(s0)
; RV32-WITHFP-NEXT: sw a7, 28(s0)
; RV32-WITHFP-NEXT: addi a0, s0, 4
; RV32-WITHFP-NEXT: sw a0, -12(s0)
; RV32-WITHFP-NEXT: lw a0, -12(s0)
; RV32-WITHFP-NEXT: addi a0, a0, 3
; RV32-WITHFP-NEXT: andi a0, a0, -4
; RV32-WITHFP-NEXT: addi a1, a0, 4
; RV32-WITHFP-NEXT: sw a1, -12(s0)
; RV32-WITHFP-NEXT: lw a0, 0(a0)
; RV32-WITHFP-NEXT: li a1, 0
; RV32-WITHFP-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
; RV32-WITHFP-NEXT: lw s0, 8(sp) # 4-byte Folded Reload
; RV32-WITHFP-NEXT: addi sp, sp, 48
; RV32-WITHFP-NEXT: ret
;
; RV64-WITHFP-LABEL: va2_va_arg:
; RV64-WITHFP: # %bb.0:
; RV64-WITHFP-NEXT: addi sp, sp, -96
; RV64-WITHFP-NEXT: sd ra, 24(sp) # 8-byte Folded Spill
; RV64-WITHFP-NEXT: sd s0, 16(sp) # 8-byte Folded Spill
; RV64-WITHFP-NEXT: addi s0, sp, 32
; RV64-WITHFP-NEXT: sd a1, 8(s0)
; RV64-WITHFP-NEXT: sd a2, 16(s0)
; RV64-WITHFP-NEXT: sd a3, 24(s0)
; RV64-WITHFP-NEXT: sd a4, 32(s0)
; RV64-WITHFP-NEXT: sd a5, 40(s0)
; RV64-WITHFP-NEXT: sd a6, 48(s0)
; RV64-WITHFP-NEXT: sd a7, 56(s0)
; RV64-WITHFP-NEXT: addi a0, s0, 8
; RV64-WITHFP-NEXT: sd a0, -24(s0)
; RV64-WITHFP-NEXT: ld a0, -24(s0)
; RV64-WITHFP-NEXT: addi a0, a0, 3
; RV64-WITHFP-NEXT: andi a0, a0, -4
; RV64-WITHFP-NEXT: addi a1, a0, 4
; RV64-WITHFP-NEXT: sd a1, -24(s0)
; RV64-WITHFP-NEXT: lw a0, 0(a0)
; RV64-WITHFP-NEXT: slli a0, a0, 32
; RV64-WITHFP-NEXT: srli a0, a0, 32
; RV64-WITHFP-NEXT: ld ra, 24(sp) # 8-byte Folded Reload
; RV64-WITHFP-NEXT: ld s0, 16(sp) # 8-byte Folded Reload
; RV64-WITHFP-NEXT: addi sp, sp, 96
; RV64-WITHFP-NEXT: ret
%va = alloca ptr
call void @llvm.va_start(ptr %va)
%1 = va_arg ptr %va, i32
call void @llvm.va_end(ptr %va)
%2 = zext i32 %1 to i64
ret i64 %2
}
define void @va2_caller() nounwind {
; RV32-LABEL: va2_caller:
; RV32: # %bb.0:
; RV32-NEXT: addi sp, sp, -16
; RV32-NEXT: sw ra, 12(sp) # 4-byte Folded Spill
; RV32-NEXT: li a1, 1
; RV32-NEXT: call va2
; RV32-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
; RV32-NEXT: addi sp, sp, 16
; RV32-NEXT: ret
;
; RV64-LABEL: va2_caller:
; RV64: # %bb.0:
; RV64-NEXT: addi sp, sp, -16
; RV64-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
; RV64-NEXT: li a1, 1
; RV64-NEXT: call va2
; RV64-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
; RV64-NEXT: addi sp, sp, 16
; RV64-NEXT: ret
;
; RV32-WITHFP-LABEL: va2_caller:
; RV32-WITHFP: # %bb.0:
; RV32-WITHFP-NEXT: addi sp, sp, -16
; RV32-WITHFP-NEXT: sw ra, 12(sp) # 4-byte Folded Spill
; RV32-WITHFP-NEXT: sw s0, 8(sp) # 4-byte Folded Spill
; RV32-WITHFP-NEXT: addi s0, sp, 16
; RV32-WITHFP-NEXT: li a1, 1
; RV32-WITHFP-NEXT: call va2
; RV32-WITHFP-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
; RV32-WITHFP-NEXT: lw s0, 8(sp) # 4-byte Folded Reload
; RV32-WITHFP-NEXT: addi sp, sp, 16
; RV32-WITHFP-NEXT: ret
;
; RV64-WITHFP-LABEL: va2_caller:
; RV64-WITHFP: # %bb.0:
; RV64-WITHFP-NEXT: addi sp, sp, -16
; RV64-WITHFP-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
; RV64-WITHFP-NEXT: sd s0, 0(sp) # 8-byte Folded Spill
; RV64-WITHFP-NEXT: addi s0, sp, 16
; RV64-WITHFP-NEXT: li a1, 1
; RV64-WITHFP-NEXT: call va2
; RV64-WITHFP-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
; RV64-WITHFP-NEXT: ld s0, 0(sp) # 8-byte Folded Reload
; RV64-WITHFP-NEXT: addi sp, sp, 16
; RV64-WITHFP-NEXT: ret
%1 = call i64 (ptr, ...) @va2(ptr undef, i32 1)
ret void
}
; On RV32, Ensure a named 2*xlen argument is passed in a1 and a2, while the
; vararg double is passed in a4 and a5 (rather than a3 and a4)
define i64 @va3(i32 %a, i64 %b, ...) nounwind {
; ILP32-LABEL: va3:
; ILP32: # %bb.0:
; ILP32-NEXT: addi sp, sp, -32
; ILP32-NEXT: sw a3, 12(sp)
; ILP32-NEXT: sw a4, 16(sp)
; ILP32-NEXT: addi a0, sp, 12
; ILP32-NEXT: sw a0, 4(sp)
; ILP32-NEXT: lw a0, 4(sp)
; ILP32-NEXT: sw a5, 20(sp)
; ILP32-NEXT: sw a6, 24(sp)
; ILP32-NEXT: sw a7, 28(sp)
; ILP32-NEXT: addi a3, a0, 7
; ILP32-NEXT: andi a3, a3, -8
; ILP32-NEXT: addi a0, a0, 15
; ILP32-NEXT: sw a0, 4(sp)
; ILP32-NEXT: lw a4, 0(a3)
; ILP32-NEXT: lw a3, 4(a3)
; ILP32-NEXT: add a0, a1, a4
; ILP32-NEXT: sltu a1, a0, a4
; ILP32-NEXT: add a2, a2, a3
; ILP32-NEXT: add a1, a2, a1
; ILP32-NEXT: addi sp, sp, 32
; ILP32-NEXT: ret
;
; RV32D-ILP32-LABEL: va3:
; RV32D-ILP32: # %bb.0:
; RV32D-ILP32-NEXT: addi sp, sp, -48
; RV32D-ILP32-NEXT: sw a3, 28(sp)
; RV32D-ILP32-NEXT: sw a4, 32(sp)
; RV32D-ILP32-NEXT: addi a0, sp, 28
; RV32D-ILP32-NEXT: sw a0, 20(sp)
; RV32D-ILP32-NEXT: lw a0, 20(sp)
; RV32D-ILP32-NEXT: sw a5, 36(sp)
; RV32D-ILP32-NEXT: sw a6, 40(sp)
; RV32D-ILP32-NEXT: sw a7, 44(sp)
; RV32D-ILP32-NEXT: addi a3, a0, 7
; RV32D-ILP32-NEXT: andi a3, a3, -8
; RV32D-ILP32-NEXT: fld fa5, 0(a3)
; RV32D-ILP32-NEXT: addi a0, a0, 15
; RV32D-ILP32-NEXT: sw a0, 20(sp)
; RV32D-ILP32-NEXT: fsd fa5, 8(sp)
; RV32D-ILP32-NEXT: lw a3, 8(sp)
; RV32D-ILP32-NEXT: lw a4, 12(sp)
; RV32D-ILP32-NEXT: add a0, a1, a3
; RV32D-ILP32-NEXT: sltu a1, a0, a3
; RV32D-ILP32-NEXT: add a2, a2, a4
; RV32D-ILP32-NEXT: add a1, a2, a1
; RV32D-ILP32-NEXT: addi sp, sp, 48
; RV32D-ILP32-NEXT: ret
;
; RV32D-ILP32F-LABEL: va3:
; RV32D-ILP32F: # %bb.0:
; RV32D-ILP32F-NEXT: addi sp, sp, -48
; RV32D-ILP32F-NEXT: sw a3, 28(sp)
; RV32D-ILP32F-NEXT: sw a4, 32(sp)
; RV32D-ILP32F-NEXT: addi a0, sp, 28
; RV32D-ILP32F-NEXT: sw a0, 20(sp)
; RV32D-ILP32F-NEXT: lw a0, 20(sp)
; RV32D-ILP32F-NEXT: sw a5, 36(sp)
; RV32D-ILP32F-NEXT: sw a6, 40(sp)
; RV32D-ILP32F-NEXT: sw a7, 44(sp)
; RV32D-ILP32F-NEXT: addi a3, a0, 7
; RV32D-ILP32F-NEXT: andi a3, a3, -8
; RV32D-ILP32F-NEXT: fld fa5, 0(a3)
; RV32D-ILP32F-NEXT: addi a0, a0, 15
; RV32D-ILP32F-NEXT: sw a0, 20(sp)
; RV32D-ILP32F-NEXT: fsd fa5, 8(sp)
; RV32D-ILP32F-NEXT: lw a3, 8(sp)
; RV32D-ILP32F-NEXT: lw a4, 12(sp)
; RV32D-ILP32F-NEXT: add a0, a1, a3
; RV32D-ILP32F-NEXT: sltu a1, a0, a3
; RV32D-ILP32F-NEXT: add a2, a2, a4
; RV32D-ILP32F-NEXT: add a1, a2, a1
; RV32D-ILP32F-NEXT: addi sp, sp, 48
; RV32D-ILP32F-NEXT: ret
;
; RV32D-ILP32D-LABEL: va3:
; RV32D-ILP32D: # %bb.0:
; RV32D-ILP32D-NEXT: addi sp, sp, -48
; RV32D-ILP32D-NEXT: sw a3, 28(sp)
; RV32D-ILP32D-NEXT: sw a4, 32(sp)
; RV32D-ILP32D-NEXT: addi a0, sp, 28
; RV32D-ILP32D-NEXT: sw a0, 20(sp)
; RV32D-ILP32D-NEXT: lw a0, 20(sp)
; RV32D-ILP32D-NEXT: sw a5, 36(sp)
; RV32D-ILP32D-NEXT: sw a6, 40(sp)
; RV32D-ILP32D-NEXT: sw a7, 44(sp)
; RV32D-ILP32D-NEXT: addi a3, a0, 7
; RV32D-ILP32D-NEXT: andi a3, a3, -8
; RV32D-ILP32D-NEXT: fld fa5, 0(a3)
; RV32D-ILP32D-NEXT: addi a0, a0, 15
; RV32D-ILP32D-NEXT: sw a0, 20(sp)
; RV32D-ILP32D-NEXT: fsd fa5, 8(sp)
; RV32D-ILP32D-NEXT: lw a3, 8(sp)
; RV32D-ILP32D-NEXT: lw a4, 12(sp)
; RV32D-ILP32D-NEXT: add a0, a1, a3
; RV32D-ILP32D-NEXT: sltu a1, a0, a3
; RV32D-ILP32D-NEXT: add a2, a2, a4
; RV32D-ILP32D-NEXT: add a1, a2, a1
; RV32D-ILP32D-NEXT: addi sp, sp, 48
; RV32D-ILP32D-NEXT: ret
;
; RV64-LABEL: va3:
; RV64: # %bb.0:
; RV64-NEXT: addi sp, sp, -64
; RV64-NEXT: sd a2, 16(sp)
; RV64-NEXT: sd a3, 24(sp)
; RV64-NEXT: sd a4, 32(sp)
; RV64-NEXT: addi a0, sp, 16
; RV64-NEXT: sd a0, 8(sp)
; RV64-NEXT: ld a0, 8(sp)
; RV64-NEXT: sd a5, 40(sp)
; RV64-NEXT: sd a6, 48(sp)
; RV64-NEXT: sd a7, 56(sp)
; RV64-NEXT: addi a2, a0, 7
; RV64-NEXT: andi a2, a2, -8
; RV64-NEXT: addi a0, a0, 15
; RV64-NEXT: sd a0, 8(sp)
; RV64-NEXT: ld a0, 0(a2)
; RV64-NEXT: add a0, a1, a0
; RV64-NEXT: addi sp, sp, 64
; RV64-NEXT: ret
;
; RV32-WITHFP-LABEL: va3:
; RV32-WITHFP: # %bb.0:
; RV32-WITHFP-NEXT: addi sp, sp, -48
; RV32-WITHFP-NEXT: sw ra, 20(sp) # 4-byte Folded Spill
; RV32-WITHFP-NEXT: sw s0, 16(sp) # 4-byte Folded Spill
; RV32-WITHFP-NEXT: addi s0, sp, 24
; RV32-WITHFP-NEXT: sw a3, 4(s0)
; RV32-WITHFP-NEXT: sw a4, 8(s0)
; RV32-WITHFP-NEXT: addi a0, s0, 4
; RV32-WITHFP-NEXT: sw a0, -12(s0)
; RV32-WITHFP-NEXT: lw a0, -12(s0)
; RV32-WITHFP-NEXT: sw a5, 12(s0)
; RV32-WITHFP-NEXT: sw a6, 16(s0)
; RV32-WITHFP-NEXT: sw a7, 20(s0)
; RV32-WITHFP-NEXT: addi a0, a0, 7
; RV32-WITHFP-NEXT: andi a3, a0, -8
; RV32-WITHFP-NEXT: addi a0, a0, 8
; RV32-WITHFP-NEXT: sw a0, -12(s0)
; RV32-WITHFP-NEXT: lw a4, 0(a3)
; RV32-WITHFP-NEXT: lw a3, 4(a3)
; RV32-WITHFP-NEXT: add a0, a1, a4
; RV32-WITHFP-NEXT: sltu a1, a0, a4
; RV32-WITHFP-NEXT: add a2, a2, a3
; RV32-WITHFP-NEXT: add a1, a2, a1
; RV32-WITHFP-NEXT: lw ra, 20(sp) # 4-byte Folded Reload
; RV32-WITHFP-NEXT: lw s0, 16(sp) # 4-byte Folded Reload
; RV32-WITHFP-NEXT: addi sp, sp, 48
; RV32-WITHFP-NEXT: ret
;
; RV64-WITHFP-LABEL: va3:
; RV64-WITHFP: # %bb.0:
; RV64-WITHFP-NEXT: addi sp, sp, -80
; RV64-WITHFP-NEXT: sd ra, 24(sp) # 8-byte Folded Spill
; RV64-WITHFP-NEXT: sd s0, 16(sp) # 8-byte Folded Spill
; RV64-WITHFP-NEXT: addi s0, sp, 32
; RV64-WITHFP-NEXT: sd a2, 0(s0)
; RV64-WITHFP-NEXT: sd a3, 8(s0)
; RV64-WITHFP-NEXT: sd a4, 16(s0)
; RV64-WITHFP-NEXT: mv a0, s0
; RV64-WITHFP-NEXT: sd a0, -24(s0)
; RV64-WITHFP-NEXT: ld a0, -24(s0)
; RV64-WITHFP-NEXT: sd a5, 24(s0)
; RV64-WITHFP-NEXT: sd a6, 32(s0)
; RV64-WITHFP-NEXT: sd a7, 40(s0)
; RV64-WITHFP-NEXT: addi a2, a0, 7
; RV64-WITHFP-NEXT: andi a2, a2, -8
; RV64-WITHFP-NEXT: addi a0, a0, 15
; RV64-WITHFP-NEXT: sd a0, -24(s0)
; RV64-WITHFP-NEXT: ld a0, 0(a2)
; RV64-WITHFP-NEXT: add a0, a1, a0
; RV64-WITHFP-NEXT: ld ra, 24(sp) # 8-byte Folded Reload
; RV64-WITHFP-NEXT: ld s0, 16(sp) # 8-byte Folded Reload
; RV64-WITHFP-NEXT: addi sp, sp, 80
; RV64-WITHFP-NEXT: ret
%va = alloca ptr
call void @llvm.va_start(ptr %va)
%argp.cur = load ptr, ptr %va
%ptrint = ptrtoint ptr %argp.cur to iXLen
%1 = add iXLen %ptrint, 7
%2 = and iXLen %1, -8
%argp.cur.aligned = inttoptr iXLen %1 to ptr
%argp.next = getelementptr inbounds i8, ptr %argp.cur.aligned, i32 8
store ptr %argp.next, ptr %va
%3 = inttoptr iXLen %2 to ptr
%4 = load double, ptr %3, align 8
call void @llvm.va_end(ptr %va)
%5 = bitcast double %4 to i64
%6 = add i64 %b, %5
ret i64 %6
}
; This test is slightly different than the SelectionDAG counterpart because
; narrowScalar and widenScalar for G_VAARG on types outside of [s32, sXLen]
; are not implemented yet.
define i64 @va3_va_arg(i32 %a, i64 %b, ...) nounwind {
; RV32-LABEL: va3_va_arg:
; RV32: # %bb.0:
; RV32-NEXT: addi sp, sp, -32
; RV32-NEXT: sw a3, 12(sp)
; RV32-NEXT: sw a4, 16(sp)
; RV32-NEXT: sw a5, 20(sp)
; RV32-NEXT: sw a6, 24(sp)
; RV32-NEXT: sw a7, 28(sp)
; RV32-NEXT: addi a0, sp, 12
; RV32-NEXT: sw a0, 4(sp)
; RV32-NEXT: lw a0, 4(sp)
; RV32-NEXT: addi a0, a0, 3
; RV32-NEXT: andi a0, a0, -4
; RV32-NEXT: addi a3, a0, 4
; RV32-NEXT: sw a3, 4(sp)
; RV32-NEXT: lw a3, 0(a0)
; RV32-NEXT: add a0, a1, a3
; RV32-NEXT: sltu a1, a0, a3
; RV32-NEXT: add a1, a2, a1
; RV32-NEXT: addi sp, sp, 32
; RV32-NEXT: ret
;
; RV64-LABEL: va3_va_arg:
; RV64: # %bb.0:
; RV64-NEXT: addi sp, sp, -64
; RV64-NEXT: sd a2, 16(sp)
; RV64-NEXT: sd a3, 24(sp)
; RV64-NEXT: sd a4, 32(sp)
; RV64-NEXT: sd a5, 40(sp)
; RV64-NEXT: sd a6, 48(sp)
; RV64-NEXT: sd a7, 56(sp)
; RV64-NEXT: addi a0, sp, 16
; RV64-NEXT: sd a0, 8(sp)
; RV64-NEXT: ld a0, 8(sp)
; RV64-NEXT: addi a0, a0, 3
; RV64-NEXT: andi a0, a0, -4
; RV64-NEXT: addi a2, a0, 4
; RV64-NEXT: sd a2, 8(sp)
; RV64-NEXT: lw a0, 0(a0)
; RV64-NEXT: slli a0, a0, 32
; RV64-NEXT: srli a0, a0, 32
; RV64-NEXT: add a0, a1, a0
; RV64-NEXT: addi sp, sp, 64
; RV64-NEXT: ret
;
; RV32-WITHFP-LABEL: va3_va_arg:
; RV32-WITHFP: # %bb.0:
; RV32-WITHFP-NEXT: addi sp, sp, -48
; RV32-WITHFP-NEXT: sw ra, 20(sp) # 4-byte Folded Spill
; RV32-WITHFP-NEXT: sw s0, 16(sp) # 4-byte Folded Spill
; RV32-WITHFP-NEXT: addi s0, sp, 24
; RV32-WITHFP-NEXT: sw a3, 4(s0)
; RV32-WITHFP-NEXT: sw a4, 8(s0)
; RV32-WITHFP-NEXT: sw a5, 12(s0)
; RV32-WITHFP-NEXT: sw a6, 16(s0)
; RV32-WITHFP-NEXT: sw a7, 20(s0)
; RV32-WITHFP-NEXT: addi a0, s0, 4
; RV32-WITHFP-NEXT: sw a0, -12(s0)
; RV32-WITHFP-NEXT: lw a0, -12(s0)
; RV32-WITHFP-NEXT: addi a0, a0, 3
; RV32-WITHFP-NEXT: andi a0, a0, -4
; RV32-WITHFP-NEXT: addi a3, a0, 4
; RV32-WITHFP-NEXT: sw a3, -12(s0)
; RV32-WITHFP-NEXT: lw a3, 0(a0)
; RV32-WITHFP-NEXT: add a0, a1, a3
; RV32-WITHFP-NEXT: sltu a1, a0, a3
; RV32-WITHFP-NEXT: add a1, a2, a1
; RV32-WITHFP-NEXT: lw ra, 20(sp) # 4-byte Folded Reload
; RV32-WITHFP-NEXT: lw s0, 16(sp) # 4-byte Folded Reload
; RV32-WITHFP-NEXT: addi sp, sp, 48
; RV32-WITHFP-NEXT: ret
;
; RV64-WITHFP-LABEL: va3_va_arg:
; RV64-WITHFP: # %bb.0:
; RV64-WITHFP-NEXT: addi sp, sp, -80
; RV64-WITHFP-NEXT: sd ra, 24(sp) # 8-byte Folded Spill
; RV64-WITHFP-NEXT: sd s0, 16(sp) # 8-byte Folded Spill
; RV64-WITHFP-NEXT: addi s0, sp, 32
; RV64-WITHFP-NEXT: sd a2, 0(s0)
; RV64-WITHFP-NEXT: sd a3, 8(s0)
; RV64-WITHFP-NEXT: sd a4, 16(s0)
; RV64-WITHFP-NEXT: sd a5, 24(s0)
; RV64-WITHFP-NEXT: sd a6, 32(s0)
; RV64-WITHFP-NEXT: sd a7, 40(s0)
; RV64-WITHFP-NEXT: mv a0, s0
; RV64-WITHFP-NEXT: sd a0, -24(s0)
; RV64-WITHFP-NEXT: ld a0, -24(s0)
; RV64-WITHFP-NEXT: addi a0, a0, 3
; RV64-WITHFP-NEXT: andi a0, a0, -4
; RV64-WITHFP-NEXT: addi a2, a0, 4
; RV64-WITHFP-NEXT: sd a2, -24(s0)
; RV64-WITHFP-NEXT: lw a0, 0(a0)
; RV64-WITHFP-NEXT: slli a0, a0, 32
; RV64-WITHFP-NEXT: srli a0, a0, 32
; RV64-WITHFP-NEXT: add a0, a1, a0
; RV64-WITHFP-NEXT: ld ra, 24(sp) # 8-byte Folded Reload
; RV64-WITHFP-NEXT: ld s0, 16(sp) # 8-byte Folded Reload
; RV64-WITHFP-NEXT: addi sp, sp, 80
; RV64-WITHFP-NEXT: ret
%va = alloca ptr
call void @llvm.va_start(ptr %va)
%1 = va_arg ptr %va, i32
call void @llvm.va_end(ptr %va)
%2 = zext i32 %1 to i64
%3 = add i64 %b, %2
ret i64 %3
}
define void @va3_caller() nounwind {
; RV32-LABEL: va3_caller:
; RV32: # %bb.0:
; RV32-NEXT: addi sp, sp, -16
; RV32-NEXT: sw ra, 12(sp) # 4-byte Folded Spill
; RV32-NEXT: lui a0, 5
; RV32-NEXT: addi a3, a0, -480
; RV32-NEXT: li a0, 2
; RV32-NEXT: li a1, 1111
; RV32-NEXT: li a2, 0
; RV32-NEXT: call va3
; RV32-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
; RV32-NEXT: addi sp, sp, 16
; RV32-NEXT: ret
;
; RV64-LABEL: va3_caller:
; RV64: # %bb.0:
; RV64-NEXT: addi sp, sp, -16
; RV64-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
; RV64-NEXT: lui a0, 5
; RV64-NEXT: addiw a2, a0, -480
; RV64-NEXT: li a0, 2
; RV64-NEXT: li a1, 1111
; RV64-NEXT: call va3
; RV64-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
; RV64-NEXT: addi sp, sp, 16
; RV64-NEXT: ret
;
; RV32-WITHFP-LABEL: va3_caller:
; RV32-WITHFP: # %bb.0:
; RV32-WITHFP-NEXT: addi sp, sp, -16
; RV32-WITHFP-NEXT: sw ra, 12(sp) # 4-byte Folded Spill
; RV32-WITHFP-NEXT: sw s0, 8(sp) # 4-byte Folded Spill
; RV32-WITHFP-NEXT: addi s0, sp, 16
; RV32-WITHFP-NEXT: lui a0, 5
; RV32-WITHFP-NEXT: addi a3, a0, -480
; RV32-WITHFP-NEXT: li a0, 2
; RV32-WITHFP-NEXT: li a1, 1111
; RV32-WITHFP-NEXT: li a2, 0
; RV32-WITHFP-NEXT: call va3
; RV32-WITHFP-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
; RV32-WITHFP-NEXT: lw s0, 8(sp) # 4-byte Folded Reload
; RV32-WITHFP-NEXT: addi sp, sp, 16
; RV32-WITHFP-NEXT: ret
;
; RV64-WITHFP-LABEL: va3_caller:
; RV64-WITHFP: # %bb.0:
; RV64-WITHFP-NEXT: addi sp, sp, -16
; RV64-WITHFP-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
; RV64-WITHFP-NEXT: sd s0, 0(sp) # 8-byte Folded Spill
; RV64-WITHFP-NEXT: addi s0, sp, 16
; RV64-WITHFP-NEXT: lui a0, 5
; RV64-WITHFP-NEXT: addiw a2, a0, -480
; RV64-WITHFP-NEXT: li a0, 2
; RV64-WITHFP-NEXT: li a1, 1111
; RV64-WITHFP-NEXT: call va3
; RV64-WITHFP-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
; RV64-WITHFP-NEXT: ld s0, 0(sp) # 8-byte Folded Reload
; RV64-WITHFP-NEXT: addi sp, sp, 16
; RV64-WITHFP-NEXT: ret
%1 = call i64 (i32, i64, ...) @va3(i32 2, i64 1111, i32 20000)
ret void
}
declare void @llvm.va_copy(ptr, ptr)
define i32 @va4_va_copy(i32 %argno, ...) nounwind {
; RV32-LABEL: va4_va_copy:
; RV32: # %bb.0:
; RV32-NEXT: addi sp, sp, -48
; RV32-NEXT: sw ra, 12(sp) # 4-byte Folded Spill
; RV32-NEXT: sw s0, 8(sp) # 4-byte Folded Spill
; RV32-NEXT: sw a1, 20(sp)
; RV32-NEXT: sw a2, 24(sp)
; RV32-NEXT: sw a3, 28(sp)
; RV32-NEXT: sw a4, 32(sp)
; RV32-NEXT: sw a5, 36(sp)
; RV32-NEXT: sw a6, 40(sp)
; RV32-NEXT: sw a7, 44(sp)
; RV32-NEXT: addi a0, sp, 20
; RV32-NEXT: sw a0, 4(sp)
; RV32-NEXT: lw a0, 4(sp)
; RV32-NEXT: addi a0, a0, 3
; RV32-NEXT: andi a0, a0, -4
; RV32-NEXT: addi a1, a0, 4
; RV32-NEXT: sw a1, 4(sp)
; RV32-NEXT: lw a1, 4(sp)
; RV32-NEXT: lw s0, 0(a0)
; RV32-NEXT: sw a1, 0(sp)
; RV32-NEXT: lw a0, 0(sp)
; RV32-NEXT: call notdead
; RV32-NEXT: lw a0, 4(sp)
; RV32-NEXT: addi a0, a0, 3
; RV32-NEXT: andi a0, a0, -4
; RV32-NEXT: addi a1, a0, 4
; RV32-NEXT: sw a1, 4(sp)
; RV32-NEXT: lw a1, 4(sp)
; RV32-NEXT: lw a0, 0(a0)
; RV32-NEXT: addi a1, a1, 3
; RV32-NEXT: andi a1, a1, -4
; RV32-NEXT: addi a2, a1, 4
; RV32-NEXT: sw a2, 4(sp)
; RV32-NEXT: lw a2, 4(sp)
; RV32-NEXT: lw a1, 0(a1)
; RV32-NEXT: addi a2, a2, 3
; RV32-NEXT: andi a2, a2, -4
; RV32-NEXT: addi a3, a2, 4
; RV32-NEXT: sw a3, 4(sp)
; RV32-NEXT: lw a2, 0(a2)
; RV32-NEXT: add a0, a0, s0
; RV32-NEXT: add a1, a1, a2
; RV32-NEXT: add a0, a0, a1
; RV32-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
; RV32-NEXT: lw s0, 8(sp) # 4-byte Folded Reload
; RV32-NEXT: addi sp, sp, 48
; RV32-NEXT: ret
;
; RV64-LABEL: va4_va_copy:
; RV64: # %bb.0:
; RV64-NEXT: addi sp, sp, -96
; RV64-NEXT: sd ra, 24(sp) # 8-byte Folded Spill
; RV64-NEXT: sd s0, 16(sp) # 8-byte Folded Spill
; RV64-NEXT: sd a1, 40(sp)
; RV64-NEXT: sd a2, 48(sp)
; RV64-NEXT: sd a3, 56(sp)
; RV64-NEXT: sd a4, 64(sp)
; RV64-NEXT: sd a5, 72(sp)
; RV64-NEXT: sd a6, 80(sp)
; RV64-NEXT: sd a7, 88(sp)
; RV64-NEXT: addi a0, sp, 40
; RV64-NEXT: sd a0, 8(sp)
; RV64-NEXT: ld a0, 8(sp)
; RV64-NEXT: addi a0, a0, 3
; RV64-NEXT: andi a0, a0, -4
; RV64-NEXT: addi a1, a0, 4
; RV64-NEXT: sd a1, 8(sp)
; RV64-NEXT: ld a1, 8(sp)
; RV64-NEXT: lw s0, 0(a0)
; RV64-NEXT: sd a1, 0(sp)
; RV64-NEXT: lw a0, 4(sp)
; RV64-NEXT: lwu a1, 0(sp)
; RV64-NEXT: slli a0, a0, 32
; RV64-NEXT: or a0, a0, a1
; RV64-NEXT: call notdead
; RV64-NEXT: ld a0, 8(sp)
; RV64-NEXT: addi a0, a0, 3
; RV64-NEXT: andi a0, a0, -4
; RV64-NEXT: addi a1, a0, 4
; RV64-NEXT: sd a1, 8(sp)
; RV64-NEXT: ld a1, 8(sp)
; RV64-NEXT: lw a0, 0(a0)
; RV64-NEXT: addi a1, a1, 3
; RV64-NEXT: andi a1, a1, -4
; RV64-NEXT: addi a2, a1, 4
; RV64-NEXT: sd a2, 8(sp)
; RV64-NEXT: ld a2, 8(sp)
; RV64-NEXT: lw a1, 0(a1)
; RV64-NEXT: addi a2, a2, 3
; RV64-NEXT: andi a2, a2, -4
; RV64-NEXT: addi a3, a2, 4
; RV64-NEXT: sd a3, 8(sp)
; RV64-NEXT: lw a2, 0(a2)
; RV64-NEXT: add a0, a0, s0
; RV64-NEXT: add a1, a1, a2
; RV64-NEXT: addw a0, a0, a1
; RV64-NEXT: ld ra, 24(sp) # 8-byte Folded Reload
; RV64-NEXT: ld s0, 16(sp) # 8-byte Folded Reload
; RV64-NEXT: addi sp, sp, 96
; RV64-NEXT: ret
;
; RV32-WITHFP-LABEL: va4_va_copy:
; RV32-WITHFP: # %bb.0:
; RV32-WITHFP-NEXT: addi sp, sp, -64
; RV32-WITHFP-NEXT: sw ra, 28(sp) # 4-byte Folded Spill
; RV32-WITHFP-NEXT: sw s0, 24(sp) # 4-byte Folded Spill
; RV32-WITHFP-NEXT: sw s1, 20(sp) # 4-byte Folded Spill
; RV32-WITHFP-NEXT: addi s0, sp, 32
; RV32-WITHFP-NEXT: sw a1, 4(s0)
; RV32-WITHFP-NEXT: sw a2, 8(s0)
; RV32-WITHFP-NEXT: sw a3, 12(s0)
; RV32-WITHFP-NEXT: sw a4, 16(s0)
; RV32-WITHFP-NEXT: sw a5, 20(s0)
; RV32-WITHFP-NEXT: sw a6, 24(s0)
; RV32-WITHFP-NEXT: sw a7, 28(s0)
; RV32-WITHFP-NEXT: addi a0, s0, 4
; RV32-WITHFP-NEXT: sw a0, -16(s0)
; RV32-WITHFP-NEXT: lw a0, -16(s0)
; RV32-WITHFP-NEXT: addi a0, a0, 3
; RV32-WITHFP-NEXT: andi a0, a0, -4
; RV32-WITHFP-NEXT: addi a1, a0, 4
; RV32-WITHFP-NEXT: sw a1, -16(s0)
; RV32-WITHFP-NEXT: lw a1, -16(s0)
; RV32-WITHFP-NEXT: lw s1, 0(a0)
; RV32-WITHFP-NEXT: sw a1, -20(s0)
; RV32-WITHFP-NEXT: lw a0, -20(s0)
; RV32-WITHFP-NEXT: call notdead
; RV32-WITHFP-NEXT: lw a0, -16(s0)
; RV32-WITHFP-NEXT: addi a0, a0, 3
; RV32-WITHFP-NEXT: andi a0, a0, -4
; RV32-WITHFP-NEXT: addi a1, a0, 4
; RV32-WITHFP-NEXT: sw a1, -16(s0)
; RV32-WITHFP-NEXT: lw a1, -16(s0)
; RV32-WITHFP-NEXT: lw a0, 0(a0)
; RV32-WITHFP-NEXT: addi a1, a1, 3
; RV32-WITHFP-NEXT: andi a1, a1, -4
; RV32-WITHFP-NEXT: addi a2, a1, 4
; RV32-WITHFP-NEXT: sw a2, -16(s0)
; RV32-WITHFP-NEXT: lw a2, -16(s0)
; RV32-WITHFP-NEXT: lw a1, 0(a1)
; RV32-WITHFP-NEXT: addi a2, a2, 3
; RV32-WITHFP-NEXT: andi a2, a2, -4
; RV32-WITHFP-NEXT: addi a3, a2, 4
; RV32-WITHFP-NEXT: sw a3, -16(s0)
; RV32-WITHFP-NEXT: lw a2, 0(a2)
; RV32-WITHFP-NEXT: add a0, a0, s1
; RV32-WITHFP-NEXT: add a1, a1, a2
; RV32-WITHFP-NEXT: add a0, a0, a1
; RV32-WITHFP-NEXT: lw ra, 28(sp) # 4-byte Folded Reload
; RV32-WITHFP-NEXT: lw s0, 24(sp) # 4-byte Folded Reload
; RV32-WITHFP-NEXT: lw s1, 20(sp) # 4-byte Folded Reload
; RV32-WITHFP-NEXT: addi sp, sp, 64
; RV32-WITHFP-NEXT: ret
;
; RV64-WITHFP-LABEL: va4_va_copy:
; RV64-WITHFP: # %bb.0:
; RV64-WITHFP-NEXT: addi sp, sp, -112
; RV64-WITHFP-NEXT: sd ra, 40(sp) # 8-byte Folded Spill
; RV64-WITHFP-NEXT: sd s0, 32(sp) # 8-byte Folded Spill
; RV64-WITHFP-NEXT: sd s1, 24(sp) # 8-byte Folded Spill
; RV64-WITHFP-NEXT: addi s0, sp, 48
; RV64-WITHFP-NEXT: sd a1, 8(s0)
; RV64-WITHFP-NEXT: sd a2, 16(s0)
; RV64-WITHFP-NEXT: sd a3, 24(s0)
; RV64-WITHFP-NEXT: sd a4, 32(s0)
; RV64-WITHFP-NEXT: sd a5, 40(s0)
; RV64-WITHFP-NEXT: sd a6, 48(s0)
; RV64-WITHFP-NEXT: sd a7, 56(s0)
; RV64-WITHFP-NEXT: addi a0, s0, 8
; RV64-WITHFP-NEXT: sd a0, -32(s0)
; RV64-WITHFP-NEXT: ld a0, -32(s0)
; RV64-WITHFP-NEXT: addi a0, a0, 3
; RV64-WITHFP-NEXT: andi a0, a0, -4
; RV64-WITHFP-NEXT: addi a1, a0, 4
; RV64-WITHFP-NEXT: sd a1, -32(s0)
; RV64-WITHFP-NEXT: ld a1, -32(s0)
; RV64-WITHFP-NEXT: lw s1, 0(a0)
; RV64-WITHFP-NEXT: sd a1, -40(s0)
; RV64-WITHFP-NEXT: lw a0, -36(s0)
; RV64-WITHFP-NEXT: lwu a1, -40(s0)
; RV64-WITHFP-NEXT: slli a0, a0, 32
; RV64-WITHFP-NEXT: or a0, a0, a1
; RV64-WITHFP-NEXT: call notdead
; RV64-WITHFP-NEXT: ld a0, -32(s0)
; RV64-WITHFP-NEXT: addi a0, a0, 3
; RV64-WITHFP-NEXT: andi a0, a0, -4
; RV64-WITHFP-NEXT: addi a1, a0, 4
; RV64-WITHFP-NEXT: sd a1, -32(s0)
; RV64-WITHFP-NEXT: ld a1, -32(s0)
; RV64-WITHFP-NEXT: lw a0, 0(a0)
; RV64-WITHFP-NEXT: addi a1, a1, 3
; RV64-WITHFP-NEXT: andi a1, a1, -4
; RV64-WITHFP-NEXT: addi a2, a1, 4
; RV64-WITHFP-NEXT: sd a2, -32(s0)
; RV64-WITHFP-NEXT: ld a2, -32(s0)
; RV64-WITHFP-NEXT: lw a1, 0(a1)
; RV64-WITHFP-NEXT: addi a2, a2, 3
; RV64-WITHFP-NEXT: andi a2, a2, -4
; RV64-WITHFP-NEXT: addi a3, a2, 4
; RV64-WITHFP-NEXT: sd a3, -32(s0)
; RV64-WITHFP-NEXT: lw a2, 0(a2)
; RV64-WITHFP-NEXT: add a0, a0, s1
; RV64-WITHFP-NEXT: add a1, a1, a2
; RV64-WITHFP-NEXT: addw a0, a0, a1
; RV64-WITHFP-NEXT: ld ra, 40(sp) # 8-byte Folded Reload
; RV64-WITHFP-NEXT: ld s0, 32(sp) # 8-byte Folded Reload
; RV64-WITHFP-NEXT: ld s1, 24(sp) # 8-byte Folded Reload
; RV64-WITHFP-NEXT: addi sp, sp, 112
; RV64-WITHFP-NEXT: ret
%vargs = alloca ptr
%wargs = alloca ptr
call void @llvm.va_start(ptr %vargs)
%1 = va_arg ptr %vargs, i32
call void @llvm.va_copy(ptr %wargs, ptr %vargs)
%2 = load ptr, ptr %wargs, align 4
call void @notdead(ptr %2)
%3 = va_arg ptr %vargs, i32
%4 = va_arg ptr %vargs, i32
%5 = va_arg ptr %vargs, i32
call void @llvm.va_end(ptr %vargs)
call void @llvm.va_end(ptr %wargs)
%add1 = add i32 %3, %1
%add2 = add i32 %add1, %4
%add3 = add i32 %add2, %5
ret i32 %add3
}
; The va5_aligned_stack_callee and caller function are ommitted from this file
; since they were not included in the IR lowering test when vararg calls were
; initially added.
; A function with no fixed arguments is not valid C, but can be
; specified in LLVM IR. We must ensure the vararg save area is
; still set up correctly.
define i32 @va6_no_fixed_args(...) nounwind {
; RV32-LABEL: va6_no_fixed_args:
; RV32: # %bb.0:
; RV32-NEXT: addi sp, sp, -48
; RV32-NEXT: sw a0, 16(sp)
; RV32-NEXT: sw a1, 20(sp)
; RV32-NEXT: sw a2, 24(sp)
; RV32-NEXT: sw a3, 28(sp)
; RV32-NEXT: sw a4, 32(sp)
; RV32-NEXT: sw a5, 36(sp)
; RV32-NEXT: sw a6, 40(sp)
; RV32-NEXT: sw a7, 44(sp)
; RV32-NEXT: addi a0, sp, 16
; RV32-NEXT: sw a0, 12(sp)
; RV32-NEXT: lw a0, 12(sp)
; RV32-NEXT: addi a0, a0, 3
; RV32-NEXT: andi a0, a0, -4
; RV32-NEXT: addi a1, a0, 4
; RV32-NEXT: sw a1, 12(sp)
; RV32-NEXT: lw a0, 0(a0)
; RV32-NEXT: addi sp, sp, 48
; RV32-NEXT: ret
;
; RV64-LABEL: va6_no_fixed_args:
; RV64: # %bb.0:
; RV64-NEXT: addi sp, sp, -80
; RV64-NEXT: sd a0, 16(sp)
; RV64-NEXT: sd a1, 24(sp)
; RV64-NEXT: sd a2, 32(sp)
; RV64-NEXT: sd a3, 40(sp)
; RV64-NEXT: sd a4, 48(sp)
; RV64-NEXT: sd a5, 56(sp)
; RV64-NEXT: sd a6, 64(sp)
; RV64-NEXT: sd a7, 72(sp)
; RV64-NEXT: addi a0, sp, 16
; RV64-NEXT: sd a0, 8(sp)
; RV64-NEXT: ld a0, 8(sp)
; RV64-NEXT: addi a0, a0, 3
; RV64-NEXT: andi a0, a0, -4
; RV64-NEXT: addi a1, a0, 4
; RV64-NEXT: sd a1, 8(sp)
; RV64-NEXT: lw a0, 0(a0)
; RV64-NEXT: addi sp, sp, 80
; RV64-NEXT: ret
;
; RV32-WITHFP-LABEL: va6_no_fixed_args:
; RV32-WITHFP: # %bb.0:
; RV32-WITHFP-NEXT: addi sp, sp, -48
; RV32-WITHFP-NEXT: sw ra, 12(sp) # 4-byte Folded Spill
; RV32-WITHFP-NEXT: sw s0, 8(sp) # 4-byte Folded Spill
; RV32-WITHFP-NEXT: addi s0, sp, 16
; RV32-WITHFP-NEXT: sw a0, 0(s0)
; RV32-WITHFP-NEXT: sw a1, 4(s0)
; RV32-WITHFP-NEXT: sw a2, 8(s0)
; RV32-WITHFP-NEXT: sw a3, 12(s0)
; RV32-WITHFP-NEXT: sw a4, 16(s0)
; RV32-WITHFP-NEXT: sw a5, 20(s0)
; RV32-WITHFP-NEXT: sw a6, 24(s0)
; RV32-WITHFP-NEXT: sw a7, 28(s0)
; RV32-WITHFP-NEXT: mv a0, s0
; RV32-WITHFP-NEXT: sw a0, -12(s0)
; RV32-WITHFP-NEXT: lw a0, -12(s0)
; RV32-WITHFP-NEXT: addi a0, a0, 3
; RV32-WITHFP-NEXT: andi a0, a0, -4
; RV32-WITHFP-NEXT: addi a1, a0, 4
; RV32-WITHFP-NEXT: sw a1, -12(s0)
; RV32-WITHFP-NEXT: lw a0, 0(a0)
; RV32-WITHFP-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
; RV32-WITHFP-NEXT: lw s0, 8(sp) # 4-byte Folded Reload
; RV32-WITHFP-NEXT: addi sp, sp, 48
; RV32-WITHFP-NEXT: ret
;
; RV64-WITHFP-LABEL: va6_no_fixed_args:
; RV64-WITHFP: # %bb.0:
; RV64-WITHFP-NEXT: addi sp, sp, -96
; RV64-WITHFP-NEXT: sd ra, 24(sp) # 8-byte Folded Spill
; RV64-WITHFP-NEXT: sd s0, 16(sp) # 8-byte Folded Spill
; RV64-WITHFP-NEXT: addi s0, sp, 32
; RV64-WITHFP-NEXT: sd a0, 0(s0)
; RV64-WITHFP-NEXT: sd a1, 8(s0)
; RV64-WITHFP-NEXT: sd a2, 16(s0)
; RV64-WITHFP-NEXT: sd a3, 24(s0)
; RV64-WITHFP-NEXT: sd a4, 32(s0)
; RV64-WITHFP-NEXT: sd a5, 40(s0)
; RV64-WITHFP-NEXT: sd a6, 48(s0)
; RV64-WITHFP-NEXT: sd a7, 56(s0)
; RV64-WITHFP-NEXT: mv a0, s0
; RV64-WITHFP-NEXT: sd a0, -24(s0)
; RV64-WITHFP-NEXT: ld a0, -24(s0)
; RV64-WITHFP-NEXT: addi a0, a0, 3
; RV64-WITHFP-NEXT: andi a0, a0, -4
; RV64-WITHFP-NEXT: addi a1, a0, 4
; RV64-WITHFP-NEXT: sd a1, -24(s0)
; RV64-WITHFP-NEXT: lw a0, 0(a0)
; RV64-WITHFP-NEXT: ld ra, 24(sp) # 8-byte Folded Reload
; RV64-WITHFP-NEXT: ld s0, 16(sp) # 8-byte Folded Reload
; RV64-WITHFP-NEXT: addi sp, sp, 96
; RV64-WITHFP-NEXT: ret
%va = alloca ptr
call void @llvm.va_start(ptr %va)
%1 = va_arg ptr %va, i32
call void @llvm.va_end(ptr %va)
ret i32 %1
}
; TODO: improve constant materialization of stack addresses
define i32 @va_large_stack(ptr %fmt, ...) {
; RV32-LABEL: va_large_stack:
; RV32: # %bb.0:
; RV32-NEXT: lui a0, 24414
; RV32-NEXT: addi a0, a0, 304
; RV32-NEXT: sub sp, sp, a0
; RV32-NEXT: .cfi_def_cfa_offset 100000048
; RV32-NEXT: lui a0, 24414
; RV32-NEXT: add a0, sp, a0
; RV32-NEXT: sw a1, 276(a0)
; RV32-NEXT: lui a0, 24414
; RV32-NEXT: add a0, sp, a0
; RV32-NEXT: sw a2, 280(a0)
; RV32-NEXT: lui a0, 24414
; RV32-NEXT: add a0, sp, a0
; RV32-NEXT: sw a3, 284(a0)
; RV32-NEXT: lui a0, 24414
; RV32-NEXT: add a0, sp, a0
; RV32-NEXT: sw a4, 288(a0)
; RV32-NEXT: lui a0, 24414
; RV32-NEXT: addi a0, a0, 276
; RV32-NEXT: add a0, sp, a0
; RV32-NEXT: sw a0, 12(sp)
; RV32-NEXT: lw a0, 12(sp)
; RV32-NEXT: lui a1, 24414
; RV32-NEXT: add a1, sp, a1
; RV32-NEXT: sw a5, 292(a1)
; RV32-NEXT: lui a1, 24414
; RV32-NEXT: add a1, sp, a1
; RV32-NEXT: sw a6, 296(a1)
; RV32-NEXT: lui a1, 24414
; RV32-NEXT: add a1, sp, a1
; RV32-NEXT: sw a7, 300(a1)
; RV32-NEXT: addi a1, a0, 4
; RV32-NEXT: sw a1, 12(sp)
; RV32-NEXT: lw a0, 0(a0)
; RV32-NEXT: lui a1, 24414
; RV32-NEXT: addi a1, a1, 304
; RV32-NEXT: add sp, sp, a1
; RV32-NEXT: ret
;
; RV64-LABEL: va_large_stack:
; RV64: # %bb.0:
; RV64-NEXT: lui a0, 24414
; RV64-NEXT: addiw a0, a0, 336
; RV64-NEXT: sub sp, sp, a0
; RV64-NEXT: .cfi_def_cfa_offset 100000080
; RV64-NEXT: lui a0, 24414
; RV64-NEXT: add a0, sp, a0
; RV64-NEXT: sd a1, 280(a0)
; RV64-NEXT: lui a0, 24414
; RV64-NEXT: add a0, sp, a0
; RV64-NEXT: sd a2, 288(a0)
; RV64-NEXT: lui a0, 24414
; RV64-NEXT: add a0, sp, a0
; RV64-NEXT: sd a3, 296(a0)
; RV64-NEXT: lui a0, 24414
; RV64-NEXT: add a0, sp, a0
; RV64-NEXT: sd a4, 304(a0)
; RV64-NEXT: lui a0, 24414
; RV64-NEXT: add a0, sp, a0
; RV64-NEXT: sd a5, 312(a0)
; RV64-NEXT: lui a0, 24414
; RV64-NEXT: addiw a0, a0, 280
; RV64-NEXT: add a0, sp, a0
; RV64-NEXT: sd a0, 8(sp)
; RV64-NEXT: lw a0, 12(sp)
; RV64-NEXT: lwu a1, 8(sp)
; RV64-NEXT: lui a2, 24414
; RV64-NEXT: add a2, sp, a2
; RV64-NEXT: sd a6, 320(a2)
; RV64-NEXT: lui a2, 24414
; RV64-NEXT: add a2, sp, a2
; RV64-NEXT: sd a7, 328(a2)
; RV64-NEXT: slli a0, a0, 32
; RV64-NEXT: or a0, a0, a1
; RV64-NEXT: addi a1, a0, 4
; RV64-NEXT: srli a2, a1, 32
; RV64-NEXT: sw a1, 8(sp)
; RV64-NEXT: sw a2, 12(sp)
; RV64-NEXT: lw a0, 0(a0)
; RV64-NEXT: lui a1, 24414
; RV64-NEXT: addiw a1, a1, 336
; RV64-NEXT: add sp, sp, a1
; RV64-NEXT: ret
;
; RV32-WITHFP-LABEL: va_large_stack:
; RV32-WITHFP: # %bb.0:
; RV32-WITHFP-NEXT: addi sp, sp, -2032
; RV32-WITHFP-NEXT: .cfi_def_cfa_offset 2032
; RV32-WITHFP-NEXT: sw ra, 1996(sp) # 4-byte Folded Spill
; RV32-WITHFP-NEXT: sw s0, 1992(sp) # 4-byte Folded Spill
; RV32-WITHFP-NEXT: .cfi_offset ra, -36
; RV32-WITHFP-NEXT: .cfi_offset s0, -40
; RV32-WITHFP-NEXT: addi s0, sp, 2000
; RV32-WITHFP-NEXT: .cfi_def_cfa s0, 32
; RV32-WITHFP-NEXT: lui a0, 24414
; RV32-WITHFP-NEXT: addi a0, a0, -1728
; RV32-WITHFP-NEXT: sub sp, sp, a0
; RV32-WITHFP-NEXT: lui a0, 24414
; RV32-WITHFP-NEXT: addi a0, a0, 272
; RV32-WITHFP-NEXT: sub a0, s0, a0
; RV32-WITHFP-NEXT: sw a1, 4(s0)
; RV32-WITHFP-NEXT: sw a2, 8(s0)
; RV32-WITHFP-NEXT: sw a3, 12(s0)
; RV32-WITHFP-NEXT: sw a4, 16(s0)
; RV32-WITHFP-NEXT: addi a1, s0, 4
; RV32-WITHFP-NEXT: sw a1, 0(a0)
; RV32-WITHFP-NEXT: lw a1, 0(a0)
; RV32-WITHFP-NEXT: sw a5, 20(s0)
; RV32-WITHFP-NEXT: sw a6, 24(s0)
; RV32-WITHFP-NEXT: sw a7, 28(s0)
; RV32-WITHFP-NEXT: addi a2, a1, 4
; RV32-WITHFP-NEXT: sw a2, 0(a0)
; RV32-WITHFP-NEXT: lw a0, 0(a1)
; RV32-WITHFP-NEXT: lui a1, 24414
; RV32-WITHFP-NEXT: addi a1, a1, -1728
; RV32-WITHFP-NEXT: add sp, sp, a1
; RV32-WITHFP-NEXT: lw ra, 1996(sp) # 4-byte Folded Reload
; RV32-WITHFP-NEXT: lw s0, 1992(sp) # 4-byte Folded Reload
; RV32-WITHFP-NEXT: addi sp, sp, 2032
; RV32-WITHFP-NEXT: ret
;
; RV64-WITHFP-LABEL: va_large_stack:
; RV64-WITHFP: # %bb.0:
; RV64-WITHFP-NEXT: addi sp, sp, -2032
; RV64-WITHFP-NEXT: .cfi_def_cfa_offset 2032
; RV64-WITHFP-NEXT: sd ra, 1960(sp) # 8-byte Folded Spill
; RV64-WITHFP-NEXT: sd s0, 1952(sp) # 8-byte Folded Spill
; RV64-WITHFP-NEXT: .cfi_offset ra, -72
; RV64-WITHFP-NEXT: .cfi_offset s0, -80
; RV64-WITHFP-NEXT: addi s0, sp, 1968
; RV64-WITHFP-NEXT: .cfi_def_cfa s0, 64
; RV64-WITHFP-NEXT: lui a0, 24414
; RV64-WITHFP-NEXT: addiw a0, a0, -1680
; RV64-WITHFP-NEXT: sub sp, sp, a0
; RV64-WITHFP-NEXT: lui a0, 24414
; RV64-WITHFP-NEXT: addiw a0, a0, 288
; RV64-WITHFP-NEXT: sub a0, s0, a0
; RV64-WITHFP-NEXT: sd a1, 8(s0)
; RV64-WITHFP-NEXT: sd a2, 16(s0)
; RV64-WITHFP-NEXT: sd a3, 24(s0)
; RV64-WITHFP-NEXT: sd a4, 32(s0)
; RV64-WITHFP-NEXT: sd a5, 40(s0)
; RV64-WITHFP-NEXT: addi a1, s0, 8
; RV64-WITHFP-NEXT: sd a1, 0(a0)
; RV64-WITHFP-NEXT: lw a1, 4(a0)
; RV64-WITHFP-NEXT: lwu a2, 0(a0)
; RV64-WITHFP-NEXT: sd a6, 48(s0)
; RV64-WITHFP-NEXT: sd a7, 56(s0)
; RV64-WITHFP-NEXT: slli a1, a1, 32
; RV64-WITHFP-NEXT: or a1, a1, a2
; RV64-WITHFP-NEXT: addi a2, a1, 4
; RV64-WITHFP-NEXT: srli a3, a2, 32
; RV64-WITHFP-NEXT: sw a2, 0(a0)
; RV64-WITHFP-NEXT: sw a3, 4(a0)
; RV64-WITHFP-NEXT: lw a0, 0(a1)
; RV64-WITHFP-NEXT: lui a1, 24414
; RV64-WITHFP-NEXT: addiw a1, a1, -1680
; RV64-WITHFP-NEXT: add sp, sp, a1
; RV64-WITHFP-NEXT: ld ra, 1960(sp) # 8-byte Folded Reload
; RV64-WITHFP-NEXT: ld s0, 1952(sp) # 8-byte Folded Reload
; RV64-WITHFP-NEXT: addi sp, sp, 2032
; RV64-WITHFP-NEXT: ret
%large = alloca [ 100000000 x i8 ]
%va = alloca ptr
call void @llvm.va_start(ptr %va)
%argp.cur = load ptr, ptr %va, align 4
%argp.next = getelementptr inbounds i8, ptr %argp.cur, i32 4
store ptr %argp.next, ptr %va, align 4
%1 = load i32, ptr %argp.cur, align 4
call void @llvm.va_end(ptr %va)
ret i32 %1
}
define i32 @va_vprintf(ptr %fmt, ptr %arg_start) {
; RV32-LABEL: va_vprintf:
; RV32: # %bb.0:
; RV32-NEXT: addi sp, sp, -16
; RV32-NEXT: .cfi_def_cfa_offset 16
; RV32-NEXT: sw a1, 12(sp)
; RV32-NEXT: lw a0, 12(sp)
; RV32-NEXT: sw a0, 8(sp)
; RV32-NEXT: lw a0, 8(sp)
; RV32-NEXT: addi a0, a0, 3
; RV32-NEXT: andi a0, a0, -4
; RV32-NEXT: addi a1, a0, 4
; RV32-NEXT: sw a1, 8(sp)
; RV32-NEXT: lw a0, 0(a0)
; RV32-NEXT: addi sp, sp, 16
; RV32-NEXT: ret
;
; RV64-LABEL: va_vprintf:
; RV64: # %bb.0:
; RV64-NEXT: addi sp, sp, -16
; RV64-NEXT: .cfi_def_cfa_offset 16
; RV64-NEXT: sd a1, 8(sp)
; RV64-NEXT: ld a0, 8(sp)
; RV64-NEXT: sd a0, 0(sp)
; RV64-NEXT: ld a0, 0(sp)
; RV64-NEXT: addi a0, a0, 3
; RV64-NEXT: andi a0, a0, -4
; RV64-NEXT: addi a1, a0, 4
; RV64-NEXT: sd a1, 0(sp)
; RV64-NEXT: lw a0, 0(a0)
; RV64-NEXT: addi sp, sp, 16
; RV64-NEXT: ret
;
; RV32-WITHFP-LABEL: va_vprintf:
; RV32-WITHFP: # %bb.0:
; RV32-WITHFP-NEXT: addi sp, sp, -16
; RV32-WITHFP-NEXT: .cfi_def_cfa_offset 16
; RV32-WITHFP-NEXT: sw ra, 12(sp) # 4-byte Folded Spill
; RV32-WITHFP-NEXT: sw s0, 8(sp) # 4-byte Folded Spill
; RV32-WITHFP-NEXT: .cfi_offset ra, -4
; RV32-WITHFP-NEXT: .cfi_offset s0, -8
; RV32-WITHFP-NEXT: addi s0, sp, 16
; RV32-WITHFP-NEXT: .cfi_def_cfa s0, 0
; RV32-WITHFP-NEXT: sw a1, -12(s0)
; RV32-WITHFP-NEXT: lw a0, -12(s0)
; RV32-WITHFP-NEXT: sw a0, -16(s0)
; RV32-WITHFP-NEXT: lw a0, -16(s0)
; RV32-WITHFP-NEXT: addi a0, a0, 3
; RV32-WITHFP-NEXT: andi a0, a0, -4
; RV32-WITHFP-NEXT: addi a1, a0, 4
; RV32-WITHFP-NEXT: sw a1, -16(s0)
; RV32-WITHFP-NEXT: lw a0, 0(a0)
; RV32-WITHFP-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
; RV32-WITHFP-NEXT: lw s0, 8(sp) # 4-byte Folded Reload
; RV32-WITHFP-NEXT: addi sp, sp, 16
; RV32-WITHFP-NEXT: ret
;
; RV64-WITHFP-LABEL: va_vprintf:
; RV64-WITHFP: # %bb.0:
; RV64-WITHFP-NEXT: addi sp, sp, -32
; RV64-WITHFP-NEXT: .cfi_def_cfa_offset 32
; RV64-WITHFP-NEXT: sd ra, 24(sp) # 8-byte Folded Spill
; RV64-WITHFP-NEXT: sd s0, 16(sp) # 8-byte Folded Spill
; RV64-WITHFP-NEXT: .cfi_offset ra, -8
; RV64-WITHFP-NEXT: .cfi_offset s0, -16
; RV64-WITHFP-NEXT: addi s0, sp, 32
; RV64-WITHFP-NEXT: .cfi_def_cfa s0, 0
; RV64-WITHFP-NEXT: sd a1, -24(s0)
; RV64-WITHFP-NEXT: ld a0, -24(s0)
; RV64-WITHFP-NEXT: sd a0, -32(s0)
; RV64-WITHFP-NEXT: ld a0, -32(s0)
; RV64-WITHFP-NEXT: addi a0, a0, 3
; RV64-WITHFP-NEXT: andi a0, a0, -4
; RV64-WITHFP-NEXT: addi a1, a0, 4
; RV64-WITHFP-NEXT: sd a1, -32(s0)
; RV64-WITHFP-NEXT: lw a0, 0(a0)
; RV64-WITHFP-NEXT: ld ra, 24(sp) # 8-byte Folded Reload
; RV64-WITHFP-NEXT: ld s0, 16(sp) # 8-byte Folded Reload
; RV64-WITHFP-NEXT: addi sp, sp, 32
; RV64-WITHFP-NEXT: ret
%args = alloca ptr
%args_cp = alloca ptr
store ptr %arg_start, ptr %args
call void @llvm.va_copy(ptr %args_cp, ptr %args)
%width = va_arg ptr %args_cp, i32
call void @llvm.va_end(ptr %args_cp)
ret i32 %width
}
define i32 @va_printf(ptr %fmt, ...) {
; RV32-LABEL: va_printf:
; RV32: # %bb.0:
; RV32-NEXT: addi sp, sp, -48
; RV32-NEXT: .cfi_def_cfa_offset 48
; RV32-NEXT: sw ra, 12(sp) # 4-byte Folded Spill
; RV32-NEXT: .cfi_offset ra, -36
; RV32-NEXT: sw a1, 20(sp)
; RV32-NEXT: sw a2, 24(sp)
; RV32-NEXT: sw a3, 28(sp)
; RV32-NEXT: sw a4, 32(sp)
; RV32-NEXT: addi a1, sp, 20
; RV32-NEXT: sw a1, 8(sp)
; RV32-NEXT: lw a1, 8(sp)
; RV32-NEXT: sw a5, 36(sp)
; RV32-NEXT: sw a6, 40(sp)
; RV32-NEXT: sw a7, 44(sp)
; RV32-NEXT: call va_vprintf
; RV32-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
; RV32-NEXT: addi sp, sp, 48
; RV32-NEXT: ret
;
; RV64-LABEL: va_printf:
; RV64: # %bb.0:
; RV64-NEXT: addi sp, sp, -80
; RV64-NEXT: .cfi_def_cfa_offset 80
; RV64-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
; RV64-NEXT: .cfi_offset ra, -72
; RV64-NEXT: sd a1, 24(sp)
; RV64-NEXT: sd a2, 32(sp)
; RV64-NEXT: sd a3, 40(sp)
; RV64-NEXT: sd a4, 48(sp)
; RV64-NEXT: addi a1, sp, 24
; RV64-NEXT: sd a1, 0(sp)
; RV64-NEXT: ld a1, 0(sp)
; RV64-NEXT: sd a5, 56(sp)
; RV64-NEXT: sd a6, 64(sp)
; RV64-NEXT: sd a7, 72(sp)
; RV64-NEXT: call va_vprintf
; RV64-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
; RV64-NEXT: addi sp, sp, 80
; RV64-NEXT: ret
;
; RV32-WITHFP-LABEL: va_printf:
; RV32-WITHFP: # %bb.0:
; RV32-WITHFP-NEXT: addi sp, sp, -48
; RV32-WITHFP-NEXT: .cfi_def_cfa_offset 48
; RV32-WITHFP-NEXT: sw ra, 12(sp) # 4-byte Folded Spill
; RV32-WITHFP-NEXT: sw s0, 8(sp) # 4-byte Folded Spill
; RV32-WITHFP-NEXT: .cfi_offset ra, -36
; RV32-WITHFP-NEXT: .cfi_offset s0, -40
; RV32-WITHFP-NEXT: addi s0, sp, 16
; RV32-WITHFP-NEXT: .cfi_def_cfa s0, 32
; RV32-WITHFP-NEXT: sw a1, 4(s0)
; RV32-WITHFP-NEXT: sw a2, 8(s0)
; RV32-WITHFP-NEXT: sw a3, 12(s0)
; RV32-WITHFP-NEXT: sw a4, 16(s0)
; RV32-WITHFP-NEXT: addi a1, s0, 4
; RV32-WITHFP-NEXT: sw a1, -12(s0)
; RV32-WITHFP-NEXT: lw a1, -12(s0)
; RV32-WITHFP-NEXT: sw a5, 20(s0)
; RV32-WITHFP-NEXT: sw a6, 24(s0)
; RV32-WITHFP-NEXT: sw a7, 28(s0)
; RV32-WITHFP-NEXT: call va_vprintf
; RV32-WITHFP-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
; RV32-WITHFP-NEXT: lw s0, 8(sp) # 4-byte Folded Reload
; RV32-WITHFP-NEXT: addi sp, sp, 48
; RV32-WITHFP-NEXT: ret
;
; RV64-WITHFP-LABEL: va_printf:
; RV64-WITHFP: # %bb.0:
; RV64-WITHFP-NEXT: addi sp, sp, -96
; RV64-WITHFP-NEXT: .cfi_def_cfa_offset 96
; RV64-WITHFP-NEXT: sd ra, 24(sp) # 8-byte Folded Spill
; RV64-WITHFP-NEXT: sd s0, 16(sp) # 8-byte Folded Spill
; RV64-WITHFP-NEXT: .cfi_offset ra, -72
; RV64-WITHFP-NEXT: .cfi_offset s0, -80
; RV64-WITHFP-NEXT: addi s0, sp, 32
; RV64-WITHFP-NEXT: .cfi_def_cfa s0, 64
; RV64-WITHFP-NEXT: sd a1, 8(s0)
; RV64-WITHFP-NEXT: sd a2, 16(s0)
; RV64-WITHFP-NEXT: sd a3, 24(s0)
; RV64-WITHFP-NEXT: sd a4, 32(s0)
; RV64-WITHFP-NEXT: addi a1, s0, 8
; RV64-WITHFP-NEXT: sd a1, -24(s0)
; RV64-WITHFP-NEXT: ld a1, -24(s0)
; RV64-WITHFP-NEXT: sd a5, 40(s0)
; RV64-WITHFP-NEXT: sd a6, 48(s0)
; RV64-WITHFP-NEXT: sd a7, 56(s0)
; RV64-WITHFP-NEXT: call va_vprintf
; RV64-WITHFP-NEXT: ld ra, 24(sp) # 8-byte Folded Reload
; RV64-WITHFP-NEXT: ld s0, 16(sp) # 8-byte Folded Reload
; RV64-WITHFP-NEXT: addi sp, sp, 96
; RV64-WITHFP-NEXT: ret
%args = alloca ptr
call void @llvm.va_start(ptr %args)
%arg_start = load ptr, ptr %args
%ret_val = call i32 @va_vprintf(ptr %fmt, ptr %arg_start)
call void @llvm.va_end(ptr %args)
ret i32 %ret_val
}
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