atomic.ll
372 Bytes
; RUN: opt -mem2reg < %s -S | FileCheck %s
; mem2reg is allowed with arbitrary atomic operations (although we only support
; it for atomic load and store at the moment).
define i32 @test1(i32 %x) {
; CHECK-LABEL: @test1(
; CHECK: ret i32 %x
%a = alloca i32
store atomic i32 %x, i32* %a seq_cst, align 4
%r = load atomic i32, i32* %a seq_cst, align 4
ret i32 %r
}