mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-29 23:12:55 +01:00
5859ab0234
- Clear 'mayStore' flag when loading from the atomic variable before the spin loop - Clear kill flag from one use to multiple use in registers forming the address to that atomic variable - don't use a physical register as live-in register in BB (neither entry nor landing pad.) by copying it into virtual register (patch by Cameron Zwarich) llvm-svn: 176538
24 lines
624 B
LLVM
24 lines
624 B
LLVM
; RUN: llc < %s -mtriple=x86_64-apple-macosx10.7.0 -verify-machineinstrs | FileCheck %s
|
|
; RUN: llc < %s -mtriple=x86_64-apple-macosx10.7.0 -verify-machineinstrs -O0 | FileCheck %s
|
|
|
|
define void @test1(i32* %ptr, i32 %val1) {
|
|
; CHECK: test1
|
|
; CHECK: xchgl %esi, (%rdi)
|
|
store atomic i32 %val1, i32* %ptr seq_cst, align 4
|
|
ret void
|
|
}
|
|
|
|
define void @test2(i32* %ptr, i32 %val1) {
|
|
; CHECK: test2
|
|
; CHECK: movl %esi, (%rdi)
|
|
store atomic i32 %val1, i32* %ptr release, align 4
|
|
ret void
|
|
}
|
|
|
|
define i32 @test3(i32* %ptr) {
|
|
; CHECK: test3
|
|
; CHECK: movl (%rdi), %eax
|
|
%val = load atomic i32* %ptr seq_cst, align 4
|
|
ret i32 %val
|
|
}
|