mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-09-01 19:29:22 +00:00
dc89737bcd
functions. Make the function attributes pass add it to known library functions and when it can deduce it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185735 91177308-0d34-0410-b5e6-96231b3b80d8
24 lines
693 B
LLVM
24 lines
693 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) #0 {
|
|
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 readonly %x) #1 {
|
|
entry:
|
|
%r = load atomic i32* %x seq_cst, align 4
|
|
ret i32 %r
|
|
}
|
|
|
|
; CHECK: attributes #0 = { readnone ssp uwtable }
|
|
; CHECK: attributes #1 = { ssp uwtable }
|