1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
|
; RUN: opt < %s -basicaa -aa-eval -print-all-alias-modref-info 2>&1 | FileCheck %s
; PR4267
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
; CHECK: PartialAlias: double* %p.0.i.0, double* %p3
; %p3 is equal to %p.0.i.0 on the second iteration of the loop,
; so MayAlias is needed. In practice, basicaa returns PartialAlias
; for GEPs to ignore TBAA.
define void @foo([3 x [3 x double]]* noalias %p) {
entry:
%p3 = getelementptr [3 x [3 x double]], [3 x [3 x double]]* %p, i64 0, i64 0, i64 3
br label %loop
loop:
%i = phi i64 [ 0, %entry ], [ %i.next, %loop ]
%p.0.i.0 = getelementptr [3 x [3 x double]], [3 x [3 x double]]* %p, i64 0, i64 %i, i64 0
store volatile double 0.0, double* %p3
store volatile double 0.1, double* %p.0.i.0
%i.next = add i64 %i, 1
%cmp = icmp slt i64 %i.next, 3
br i1 %cmp, label %loop, label %exit
exit:
ret void
}
|
