| // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -ftrapv %s -emit-llvm -o - | FileCheck %s |
| |
| // CHECK: [[I32O:%.*]] = type { i32, i1 } |
| |
| unsigned int ui, uj, uk; |
| int i, j, k; |
| |
| // CHECK: define void @test0() |
| void test0() { |
| // -ftrapv doesn't affect unsigned arithmetic. |
| // CHECK: [[T1:%.*]] = load i32* @uj |
| // CHECK-NEXT: [[T2:%.*]] = load i32* @uk |
| // CHECK-NEXT: [[T3:%.*]] = add i32 [[T1]], [[T2]] |
| // CHECK-NEXT: store i32 [[T3]], i32* @ui |
| ui = uj + uk; |
| |
| // CHECK: [[T1:%.*]] = load i32* @j |
| // CHECK-NEXT: [[T2:%.*]] = load i32* @k |
| // CHECK-NEXT: [[T3:%.*]] = call [[I32O]] @llvm.sadd.with.overflow.i32(i32 [[T1]], i32 [[T2]]) |
| // CHECK-NEXT: [[T4:%.*]] = extractvalue [[I32O]] [[T3]], 0 |
| // CHECK-NEXT: [[T5:%.*]] = extractvalue [[I32O]] [[T3]], 1 |
| // CHECK-NEXT: br i1 [[T5]] |
| // CHECK: [[F:%.*]] = load i64 (i64, i64, i8, i8)** @__overflow_handler |
| // CHECK-NEXT: [[T6:%.*]] = sext i32 [[T1]] to i64 |
| // CHECK-NEXT: [[T7:%.*]] = sext i32 [[T2]] to i64 |
| // CHECK-NEXT: [[T8:%.*]] = call i64 [[F]](i64 [[T6]], i64 [[T7]], i8 3, i8 32) |
| // CHECK-NEXT: [[T9:%.*]] = trunc i64 [[T8]] to i32 |
| // CHECK-NEXT: br label |
| // CHECK: [[T10:%.*]] = phi i32 [ [[T4]], {{.*}} ], [ [[T9]], {{.*}} ] |
| // CHECK-NEXT: store i32 [[T10]], i32* @i |
| i = j + k; |
| } |
| |
| // CHECK: define void @test1() |
| void test1() { |
| extern void opaque(int); |
| opaque(i++); |
| |
| // CHECK: [[T1:%.*]] = load i32* @i |
| // CHECK-NEXT: [[T2:%.*]] = call [[I32O]] @llvm.sadd.with.overflow.i32(i32 [[T1]], i32 1) |
| // CHECK-NEXT: [[T3:%.*]] = extractvalue [[I32O]] [[T2]], 0 |
| // CHECK-NEXT: [[T4:%.*]] = extractvalue [[I32O]] [[T2]], 1 |
| // CHECK-NEXT: br i1 [[T4]] |
| // CHECK: [[F:%.*]] = load i64 (i64, i64, i8, i8)** @__overflow_handler |
| // CHECK-NEXT: [[T5:%.*]] = sext i32 [[T1]] to i64 |
| // CHECK-NEXT: [[T6:%.*]] = call i64 [[F]](i64 [[T5]], i64 1, i8 3, i8 32) |
| // CHECK-NEXT: [[T7:%.*]] = trunc i64 [[T6]] to i32 |
| // CHECK-NEXT: br label |
| // CHECK: [[T8:%.*]] = phi i32 [ [[T3]], {{.*}} ], [ [[T7]], {{.*}} ] |
| // CHECK-NEXT: store i32 [[T8]], i32* @i |
| // CHECK-NEXT: call void @opaque(i32 [[T1]]) |
| } |
| |
| // CHECK: define void @test2() |
| void test2() { |
| extern void opaque(int); |
| opaque(++i); |
| |
| // CHECK: [[T1:%.*]] = load i32* @i |
| // CHECK-NEXT: [[T2:%.*]] = call [[I32O]] @llvm.sadd.with.overflow.i32(i32 [[T1]], i32 1) |
| // CHECK-NEXT: [[T3:%.*]] = extractvalue [[I32O]] [[T2]], 0 |
| // CHECK-NEXT: [[T4:%.*]] = extractvalue [[I32O]] [[T2]], 1 |
| // CHECK-NEXT: br i1 [[T4]] |
| // CHECK: [[F:%.*]] = load i64 (i64, i64, i8, i8)** @__overflow_handler |
| // CHECK-NEXT: [[T5:%.*]] = sext i32 [[T1]] to i64 |
| // CHECK-NEXT: [[T6:%.*]] = call i64 [[F]](i64 [[T5]], i64 1, i8 3, i8 32) |
| // CHECK-NEXT: [[T7:%.*]] = trunc i64 [[T6]] to i32 |
| // CHECK-NEXT: br label |
| // CHECK: [[T8:%.*]] = phi i32 [ [[T3]], {{.*}} ], [ [[T7]], {{.*}} ] |
| // CHECK-NEXT: store i32 [[T8]], i32* @i |
| // CHECK-NEXT: call void @opaque(i32 [[T8]]) |
| } |