1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2 ; RUN: opt -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 6 define i32 @main() #0 { 7 ; CHECK-LABEL: @main( 8 ; CHECK-NEXT: entry: 9 ; CHECK-NEXT: [[TMP0:%.*]] = load i32, i32* @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: [[TOBOOL:%.*]] = icmp eq i32 [[STOREMERGE]], -1 22 ; CHECK-NEXT: br i1 [[TOBOOL]], label [[LOR_RHS:%.*]], label [[LOR_END:%.*]] 23 ; CHECK: lor.rhs: 24 ; CHECK-NEXT: [[TOBOOL5:%.*]] = icmp ne i32 [[TMP0]], 0 25 ; CHECK-NEXT: [[PHITMP:%.*]] = zext i1 [[TOBOOL5]] to i32 26 ; CHECK-NEXT: br label [[LOR_END]] 27 ; CHECK: lor.end: 28 ; CHECK-NEXT: [[TMP1:%.*]] = phi i32 [ 1, [[IF_THEN3]] ], [ [[PHITMP]], [[LOR_RHS]] ] 29 ; CHECK-NEXT: store i32 [[TMP1]], i32* @a, align 4 30 ; CHECK-NEXT: br label [[IF_END6]] 31 ; CHECK: if.end6: 32 ; CHECK-NEXT: [[TMP2:%.*]] = load i32, i32* @a, align 4 33 ; CHECK-NEXT: [[CALL:%.*]] = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 [[TMP2]]) 34 ; CHECK-NEXT: ret i32 0 35 ; 36 entry: 37 %0 = load i32, i32* @a, align 4 38 %neg = xor i32 %0, -1 39 %cmp = icmp sgt i32 %0, -1 40 br i1 %cmp, label %if.then, label %if.end 41 42 if.then: 43 br label %if.end 44 45 if.end: 46 %storemerge = phi i32 [ %0, %if.then ], [ %neg, %entry ] 47 %neg1 = xor i32 %storemerge, -1 48 %cmp2 = icmp ult i32 %storemerge, %neg1 49 br i1 %cmp2, label %if.then3, label %if.end6 50 51 if.then3: 52 %tobool = icmp eq i32 %storemerge, -1 53 br i1 %tobool, label %lor.rhs, label %lor.end 54 55 lor.rhs: 56 %tobool5 = icmp ne i32 %0, 0 57 %phitmp = zext i1 %tobool5 to i32 58 br label %lor.end 59 60 lor.end: 61 %1 = phi i32 [ 1, %if.then3 ], [ %phitmp, %lor.rhs ] 62 store i32 %1, i32* @a, align 4 63 br label %if.end6 64 65 if.end6: 66 %2 = load i32, i32* @a, align 4 67 %call = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %2) #3 68 ret i32 0 69 } 70 declare i32 @printf(i8*, ...) #2 71
