Files
clang-p2996/llvm/test/CodeGen/RISCV/split-sp-adjust.ll
Michael Munday e28b6a60bc [RISCV][NFC] Regenerate RISCV CodeGen tests
Regenerated using:

./llvm/utils/update_llc_test_checks.py -u llvm/test/CodeGen/RISCV/*.ll

This has added comments to spill-related instructions and added @plt to
some symbols.

Differential Revision: https://reviews.llvm.org/D92841
2020-12-09 19:42:49 +00:00

46 lines
1.5 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=riscv32 -verify-machineinstrs < %s \
; RUN: | FileCheck %s -check-prefix=RV32I
; The stack size is 2048 and the SP adjustment will be split.
define i32 @SplitSP() nounwind {
; RV32I-LABEL: SplitSP:
; RV32I: # %bb.0: # %entry
; RV32I-NEXT: addi sp, sp, -2032
; RV32I-NEXT: sw ra, 2028(sp) # 4-byte Folded Spill
; RV32I-NEXT: addi sp, sp, -16
; RV32I-NEXT: addi a0, sp, 16
; RV32I-NEXT: call foo@plt
; RV32I-NEXT: mv a0, zero
; RV32I-NEXT: addi sp, sp, 16
; RV32I-NEXT: lw ra, 2028(sp) # 4-byte Folded Reload
; RV32I-NEXT: addi sp, sp, 2032
; RV32I-NEXT: ret
entry:
%xx = alloca [2028 x i8], align 1
%0 = getelementptr inbounds [2028 x i8], [2028 x i8]* %xx, i32 0, i32 0
%call = call i32 @foo(i8* nonnull %0)
ret i32 0
}
; The stack size is 2032 and the SP adjustment will not be split.
define i32 @NoSplitSP() nounwind {
; RV32I-LABEL: NoSplitSP:
; RV32I: # %bb.0: # %entry
; RV32I-NEXT: addi sp, sp, -2032
; RV32I-NEXT: sw ra, 2028(sp) # 4-byte Folded Spill
; RV32I-NEXT: addi a0, sp, 4
; RV32I-NEXT: call foo@plt
; RV32I-NEXT: mv a0, zero
; RV32I-NEXT: lw ra, 2028(sp) # 4-byte Folded Reload
; RV32I-NEXT: addi sp, sp, 2032
; RV32I-NEXT: ret
entry:
%xx = alloca [2024 x i8], align 1
%0 = getelementptr inbounds [2024 x i8], [2024 x i8]* %xx, i32 0, i32 0
%call = call i32 @foo(i8* nonnull %0)
ret i32 0
}
declare i32 @foo(i8*)