llvm-6502/test/Transforms/FunctionAttrs/atomic.ll
Bill Wendling 606c8e36df Convert getAttributes() to return an AttributeSetNode.
The AttributeSetNode contains all of the attributes. This removes one (hopefully
last) use of the Attribute class as a container of multiple attributes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173761 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-29 03:20:31 +00:00

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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) readnone ssp uwtable {
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) ssp uwtable {
entry:
%r = load atomic i32* %x seq_cst, align 4
ret i32 %r
}