mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-31 16:02:52 +01:00
13b2364d24
This will make it easier to turn on struct-path aware TBAA since the metadata format will change. llvm-svn: 180743
27 lines
673 B
LLVM
27 lines
673 B
LLVM
; RUN: opt < %s -basicaa -gvn -S | FileCheck %s
|
|
|
|
; The input *.ll is obtained by manually annotating "invariant.load" to the
|
|
; two loads. With "invariant.load" metadata, the second load is redundant.
|
|
;
|
|
; int foo(int *p, char *q) {
|
|
; *q = (char)*p;
|
|
; return *p + 1;
|
|
; }
|
|
|
|
define i32 @foo(i32* nocapture %p, i8* nocapture %q) {
|
|
entry:
|
|
%0 = load i32* %p, align 4, !invariant.load !3
|
|
%conv = trunc i32 %0 to i8
|
|
store i8 %conv, i8* %q, align 1
|
|
%1 = load i32* %p, align 4, !invariant.load !3
|
|
%add = add nsw i32 %1, 1
|
|
ret i32 %add
|
|
|
|
; CHECK: foo
|
|
; CHECK: %0 = load i32* %p
|
|
; CHECK: store i8 %conv, i8* %q,
|
|
; CHECK: %add = add nsw i32 %0, 1
|
|
}
|
|
|
|
!3 = metadata !{}
|