1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt -passes=newgvn -S %s | FileCheck %s 3 4@a = common global i32 0, align 4 5@.str = private unnamed_addr constant [4 x i8] c"%d\0A\00", align 1 6define i32 @main() #0 { 7; CHECK-LABEL: @main( 8; CHECK-NEXT: entry: 9; CHECK-NEXT: [[TMP0:%.*]] = load i32, ptr @a, align 4 10; CHECK-NEXT: [[NEG:%.*]] = xor i32 [[TMP0]], -1 11; CHECK-NEXT: [[CMP:%.*]] = icmp sgt i32 [[TMP0]], -1 12; CHECK-NEXT: br i1 [[CMP]], label [[IF_THEN:%.*]], label [[IF_END:%.*]] 13; CHECK: if.then: 14; CHECK-NEXT: br label [[IF_END]] 15; CHECK: if.end: 16; CHECK-NEXT: [[PHIOFOPS:%.*]] = phi i32 [ [[TMP0]], [[ENTRY:%.*]] ], [ [[NEG]], [[IF_THEN]] ] 17; CHECK-NEXT: [[STOREMERGE:%.*]] = phi i32 [ [[TMP0]], [[IF_THEN]] ], [ [[NEG]], [[ENTRY]] ] 18; CHECK-NEXT: [[CMP2:%.*]] = icmp ult i32 [[STOREMERGE]], [[PHIOFOPS]] 19; CHECK-NEXT: br i1 [[CMP2]], label [[IF_THEN3:%.*]], label [[IF_END6:%.*]] 20; CHECK: if.then3: 21; CHECK-NEXT: br i1 false, label [[LOR_RHS:%.*]], label [[LOR_END:%.*]] 22; CHECK: lor.rhs: 23; CHECK-NEXT: store i8 poison, ptr null, align 1 24; CHECK-NEXT: br label [[LOR_END]] 25; CHECK: lor.end: 26; CHECK-NEXT: store i32 1, ptr @a, align 4 27; CHECK-NEXT: br label [[IF_END6]] 28; CHECK: if.end6: 29; CHECK-NEXT: [[TMP2:%.*]] = load i32, ptr @a, align 4 30; CHECK-NEXT: [[CALL:%.*]] = call i32 (ptr, ...) @printf(ptr @.str, i32 [[TMP2]]) 31; CHECK-NEXT: ret i32 0 32; 33entry: 34 %0 = load i32, ptr @a, align 4 35 %neg = xor i32 %0, -1 36 %cmp = icmp sgt i32 %0, -1 37 br i1 %cmp, label %if.then, label %if.end 38 39if.then: 40 br label %if.end 41 42if.end: 43 %storemerge = phi i32 [ %0, %if.then ], [ %neg, %entry ] 44 %neg1 = xor i32 %storemerge, -1 45 %cmp2 = icmp ult i32 %storemerge, %neg1 46 br i1 %cmp2, label %if.then3, label %if.end6 47 48if.then3: 49 %tobool = icmp eq i32 %storemerge, -1 50 br i1 %tobool, label %lor.rhs, label %lor.end 51 52lor.rhs: 53 %tobool5 = icmp ne i32 %0, 0 54 %phitmp = zext i1 %tobool5 to i32 55 br label %lor.end 56 57lor.end: 58 %1 = phi i32 [ 1, %if.then3 ], [ %phitmp, %lor.rhs ] 59 store i32 %1, ptr @a, align 4 60 br label %if.end6 61 62if.end6: 63 %2 = load i32, ptr @a, align 4 64 %call = call i32 (ptr, ...) @printf(ptr @.str, i32 %2) #3 65 ret i32 0 66} 67declare i32 @printf(ptr, ...) #2 68