1 ; PR32952: Don't erroneously consider congruent two phi nodes which
2 ; have the same arguments but different incoming edges.
3 ; RUN: opt -newgvn -S %s | FileCheck %s
5 @a = common global i16 0, align 2
6 @.str = private unnamed_addr constant [4 x i8] c"%d\0A\00", align 1
8 define i32 @tinkywinky() {
10 %0 = load i16, i16* @a, align 2
11 %conv = sext i16 %0 to i32
12 %neg = xor i32 %conv, -1
13 %conv1 = trunc i32 %neg to i16
14 %conv3 = zext i16 %conv1 to i32
15 %cmp = icmp slt i32 %conv, %conv3
16 br i1 %cmp, label %tinky, label %winky
19 store i16 2, i16* @a, align 2
26 ; CHECK: %meh = phi i16 [ %0, %winky ], [ %conv1, %tinky ]
27 ; CHECK: %banana = phi i16 [ %0, %tinky ], [ %conv1, %winky ]
28 %meh = phi i16 [ %0, %winky ], [ %conv1, %tinky ]
29 %banana = phi i16 [ %0, %tinky ], [ %conv1, %winky ]
33 ; CHECK: %promoted = zext i16 %banana to i32
34 ; CHECK: %other = zext i16 %meh to i32
35 %promoted = zext i16 %banana to i32
36 %other = zext i16 %meh to i32
37 %first = tail call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %promoted)
38 %second = tail call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %other)
42 declare i32 @printf(i8*, ...)