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llvm-project/llvm/test/Analysis/BasicAA/2009-10-13-GEP-BaseNoAlias.ll

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Convert the uses of '|&' to use '2>&1 |' instead, which works on old versions of Bash. In addition, I can back out the change to the lit built-in shell test runner to support this. This should fix the majority of fallout on Darwin, but I suspect there will be a few straggling issues. llvm-svn: 159544
2012-07-03 02:37:59 +08:00
; RUN: opt < %s -basicaa -aa-eval -print-all-alias-modref-info -disable-output 2>&1 | FileCheck %s
Another BasicAA fix. If a value does not alias a GEP's base pointer, then it cannot alias the GEP. GEP pointer alias rule states this clearly: A pointer value formed from a getelementptr instruction is associated with the addresses associated with the first operand of the getelementptr. llvm-svn: 84079
2009-10-14 14:41:49 +08:00
; If GEP base doesn't alias Z, then GEP doesn't alias Z.
; rdar://7282591
@Y = common global i32 0
@Z = common global i32 0
FileCheck-ize these tests. Harden some of them. llvm-svn: 155432
2012-04-24 17:15:38 +08:00
; CHECK: Function: foo
; CHECK: NoAlias: i32* %P, i32* @Z
Delete unneeded ssp attributes. llvm-svn: 118836
2010-11-12 05:08:46 +08:00
define void @foo(i32 %cond) nounwind {
Another BasicAA fix. If a value does not alias a GEP's base pointer, then it cannot alias the GEP. GEP pointer alias rule states this clearly: A pointer value formed from a getelementptr instruction is associated with the addresses associated with the first operand of the getelementptr. llvm-svn: 84079
2009-10-14 14:41:49 +08:00
entry:
%a = alloca i32
%tmp = icmp ne i32 %cond, 0
br i1 %tmp, label %bb, label %bb1
bb:
%b = getelementptr i32* %a, i32 0
br label %bb2
bb1:
br label %bb2
bb2:
%P = phi i32* [ %b, %bb ], [ @Y, %bb1 ]
%tmp1 = load i32* @Z, align 4
store i32 123, i32* %P, align 4
%tmp2 = load i32* @Z, align 4
br label %return
return:
ret void
}