1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4 2; PR32952: Don't erroneously consider congruent two phi nodes which 3; have the same arguments but different incoming edges. 4; RUN: opt -passes=newgvn -S %s | FileCheck %s 5 6@a = common global i16 0, align 2 7@.str = private unnamed_addr constant [4 x i8] c"%d\0A\00", align 1 8 9define i32 @tinkywinky() { 10; CHECK-LABEL: define i32 @tinkywinky() { 11; CHECK-NEXT: entry: 12; CHECK-NEXT: [[TMP0:%.*]] = load i16, ptr @a, align 2 13; CHECK-NEXT: [[CONV:%.*]] = sext i16 [[TMP0]] to i32 14; CHECK-NEXT: [[NEG:%.*]] = xor i32 [[CONV]], -1 15; CHECK-NEXT: [[CONV1:%.*]] = trunc i32 [[NEG]] to i16 16; CHECK-NEXT: [[CONV3:%.*]] = zext i16 [[CONV1]] to i32 17; CHECK-NEXT: [[CMP:%.*]] = icmp slt i32 [[CONV]], [[CONV3]] 18; CHECK-NEXT: br i1 [[CMP]], label [[TINKY:%.*]], label [[WINKY:%.*]] 19; CHECK: tinky: 20; CHECK-NEXT: store i16 2, ptr @a, align 2 21; CHECK-NEXT: br label [[PATATINO:%.*]] 22; CHECK: winky: 23; CHECK-NEXT: br label [[PATATINO]] 24; CHECK: patatino: 25; CHECK-NEXT: [[MEH:%.*]] = phi i16 [ [[TMP0]], [[WINKY]] ], [ [[CONV1]], [[TINKY]] ] 26; CHECK-NEXT: [[BANANA:%.*]] = phi i16 [ [[TMP0]], [[TINKY]] ], [ [[CONV1]], [[WINKY]] ] 27; CHECK-NEXT: br label [[END:%.*]] 28; CHECK: end: 29; CHECK-NEXT: [[PROMOTED:%.*]] = zext i16 [[BANANA]] to i32 30; CHECK-NEXT: [[OTHER:%.*]] = zext i16 [[MEH]] to i32 31; CHECK-NEXT: [[FIRST:%.*]] = tail call i32 (ptr, ...) @printf(ptr @.str, i32 [[PROMOTED]]) 32; CHECK-NEXT: [[SECOND:%.*]] = tail call i32 (ptr, ...) @printf(ptr @.str, i32 [[OTHER]]) 33; CHECK-NEXT: ret i32 0 34; 35entry: 36 %0 = load i16, ptr @a, align 2 37 %conv = sext i16 %0 to i32 38 %neg = xor i32 %conv, -1 39 %conv1 = trunc i32 %neg to i16 40 %conv3 = zext i16 %conv1 to i32 41 %cmp = icmp slt i32 %conv, %conv3 42 br i1 %cmp, label %tinky, label %winky 43 44tinky: 45 store i16 2, ptr @a, align 2 46 br label %patatino 47 48winky: 49 br label %patatino 50 51patatino: 52 %meh = phi i16 [ %0, %winky ], [ %conv1, %tinky ] 53 %banana = phi i16 [ %0, %tinky ], [ %conv1, %winky ] 54 br label %end 55 56end: 57 %promoted = zext i16 %banana to i32 58 %other = zext i16 %meh to i32 59 %first = tail call i32 (ptr, ...) @printf(ptr @.str, i32 %promoted) 60 %second = tail call i32 (ptr, ...) @printf(ptr @.str, i32 %other) 61 ret i32 0 62} 63 64declare i32 @printf(ptr, ...) 65