22 lines
620 B
LLVM
22 lines
620 B
LLVM
; RUN: opt -basicaa -functionattrs -S < %s | FileCheck %s
|
|
|
|
; Atomic load/store to local doesn't affect whether a function is
|
|
; readnone/readonly.
|
|
define i32 @test1(i32 %x) uwtable ssp {
|
|
; CHECK: define i32 @test1(i32 %x) uwtable readnone ssp {
|
|
entry:
|
|
%x.addr = alloca i32, align 4
|
|
store atomic i32 %x, i32* %x.addr seq_cst, align 4
|
|
%r = load atomic i32* %x.addr seq_cst, align 4
|
|
ret i32 %r
|
|
}
|
|
|
|
; A function with an Acquire load is not readonly.
|
|
define i32 @test2(i32* %x) uwtable ssp {
|
|
; CHECK: define i32 @test2(i32* nocapture %x) uwtable ssp {
|
|
entry:
|
|
%r = load atomic i32* %x seq_cst, align 4
|
|
ret i32 %r
|
|
}
|
|
|