9f7501896e
Caller saved regs differ between SysV and Win64. Use the tail call available set to scavenge from. Refactor register info to create new helper to get at tail call GPRs. Added a new test case for windows. Fixed up a number of X64 tests since now RCX is preferred over RDX on SysV. Differential Revision: http://reviews.llvm.org/D14878 llvm-svn: 253927
131 lines
3.2 KiB
LLVM
131 lines
3.2 KiB
LLVM
; RUN: llc < %s | FileCheck %s
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; Check that we can lower a use of an alloca both as a deopt value (where the
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; exact meaning is up to the consumer of the stackmap) and as an explicit spill
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; slot used for GC.
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target datalayout = "e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-pc-linux-gnu"
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declare zeroext i1 @return_i1()
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; Can we handle an explicit relocation slot (in the form of an alloca) given
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; to the statepoint?
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define i32 addrspace(1)* @test(i32 addrspace(1)* %ptr) gc "statepoint-example" {
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; CHECK-LABEL: test
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; CHECK: pushq %rax
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; CHECK: movq %rdi, (%rsp)
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; CHECK: callq return_i1
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; CHECK: movq (%rsp), %rax
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; CHECK: popq %rcx
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; CHECK: retq
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entry:
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%alloca = alloca i32 addrspace(1)*, align 8
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store i32 addrspace(1)* %ptr, i32 addrspace(1)** %alloca
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call i32 (i64, i32, i1 ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_i1f(i64 0, i32 0, i1 ()* @return_i1, i32 0, i32 0, i32 0, i32 0, i32 addrspace(1)** %alloca)
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%rel = load i32 addrspace(1)*, i32 addrspace(1)** %alloca
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ret i32 addrspace(1)* %rel
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}
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; Can we handle an alloca as a deopt value?
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define i32 addrspace(1)* @test2(i32 addrspace(1)* %ptr) gc "statepoint-example" {
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; CHECK-LABEL: test2
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; CHECK: pushq %rax
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; CHECK: movq %rdi, (%rsp)
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; CHECK: callq return_i1
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; CHECK: xorl %eax, %eax
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; CHECK: popq %rcx
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; CHECK: retq
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entry:
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%alloca = alloca i32 addrspace(1)*, align 8
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store i32 addrspace(1)* %ptr, i32 addrspace(1)** %alloca
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call i32 (i64, i32, i1 ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_i1f(i64 0, i32 0, i1 ()* @return_i1, i32 0, i32 0, i32 0, i32 1, i32 addrspace(1)** %alloca)
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ret i32 addrspace(1)* null
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}
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declare i32 @llvm.experimental.gc.statepoint.p0f_i1f(i64, i32, i1 ()*, i32, i32, ...)
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; CHECK-LABEL: .section .llvm_stackmaps
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; CHECK-NEXT: __LLVM_StackMaps:
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; Header
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; CHECK-NEXT: .byte 1
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; CHECK-NEXT: .byte 0
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; CHECK-NEXT: .short 0
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; Num Functions
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; CHECK-NEXT: .long 2
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; Num LargeConstants
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; CHECK-NEXT: .long 0
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; Num Callsites
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; CHECK-NEXT: .long 2
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; Functions and stack size
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; CHECK-NEXT: .quad test
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; CHECK-NEXT: .quad 8
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; CHECK-NEXT: .quad test2
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; CHECK-NEXT: .quad 8
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; Large Constants
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; Statepoint ID only
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; CHECK: .quad 0
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; Callsites
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; The GC one
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; CHECK: .long .Ltmp1-test
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; CHECK: .short 0
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; CHECK: .short 4
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; SmallConstant (0)
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; CHECK: .byte 4
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; CHECK: .byte 8
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; CHECK: .short 0
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; CHECK: .long 0
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; SmallConstant (0)
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; CHECK: .byte 4
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; CHECK: .byte 8
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; CHECK: .short 0
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; CHECK: .long 0
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; SmallConstant (0)
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; CHECK: .byte 4
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; CHECK: .byte 8
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; CHECK: .short 0
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; CHECK: .long 0
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; Direct Spill Slot [RSP+0]
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; CHECK: .byte 2
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; CHECK: .byte 8
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; CHECK: .short 7
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; CHECK: .long 0
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; No Padding or LiveOuts
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; CHECK: .short 0
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; CHECK: .short 0
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; CHECK: .align 8
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; The Deopt one
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; CHECK: .long .Ltmp3-test2
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; CHECK: .short 0
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; CHECK: .short 4
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; SmallConstant (0)
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; CHECK: .byte 4
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; CHECK: .byte 8
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; CHECK: .short 0
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; CHECK: .long 0
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; SmallConstant (0)
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; CHECK: .byte 4
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; CHECK: .byte 8
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; CHECK: .short 0
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; CHECK: .long 0
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; SmallConstant (1)
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; CHECK: .byte 4
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; CHECK: .byte 8
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; CHECK: .short 0
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; CHECK: .long 1
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; Direct Spill Slot [RSP+0]
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; CHECK: .byte 2
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; CHECK: .byte 8
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; CHECK: .short 7
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; CHECK: .long 0
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; No Padding or LiveOuts
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; CHECK: .short 0
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; CHECK: .short 0
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; CHECK: .align 8
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