1f0bbda00SArtem Labazov // RUN: %clang_cc1 -triple x86_64 -emit-llvm %s -o - -fwrapv -fsanitize=signed-integer-overflow | FileCheck %s --check-prefix=WRAPV
2f0bbda00SArtem Labazov // RUN: %clang_cc1 -triple x86_64 -emit-llvm %s -o - -ftrapv | FileCheck %s --check-prefixes=BOTH-TRAP,TRAPV
3f0bbda00SArtem Labazov // RUN: %clang_cc1 -triple x86_64 -emit-llvm %s -o - -fsanitize=signed-integer-overflow | FileCheck %s --check-prefixes=BOTH-TRAP,CATCH_UB
4f0bbda00SArtem Labazov // COM: TODO: Support -ftrapv-handler.
5f0bbda00SArtem Labazov
6f0bbda00SArtem Labazov extern int abs(int x);
7f0bbda00SArtem Labazov
absi(int x)8f0bbda00SArtem Labazov int absi(int x) {
9*0d8b8648SFangrui Song // WRAPV: [[ABS:%.*]] = call i32 @llvm.abs.i32(i32 %0, i1 false)
10*0d8b8648SFangrui Song // WRAPV-NEXT: ret i32 [[ABS]]
11f0bbda00SArtem Labazov //
12f0bbda00SArtem Labazov // BOTH-TRAP: [[NEG:%.*]] = call { i32, i1 } @llvm.ssub.with.overflow.i32(i32 0, i32 [[X:%.*]])
13f0bbda00SArtem Labazov // BOTH-TRAP: [[NEGV:%.*]] = extractvalue { i32, i1 } [[NEG]], 0
14f0bbda00SArtem Labazov // BOTH-TRAP: [[OFL:%.*]] = extractvalue { i32, i1 } [[NEG]], 1
15f0bbda00SArtem Labazov // BOTH-TRAP: [[NOFL:%.*]] = xor i1 [[OFL]], true
16f0bbda00SArtem Labazov // BOTH-TRAP: br i1 [[NOFL]], label %[[CONT:.*]], label %[[TRAP:[a-zA-Z_.]*]]
17f0bbda00SArtem Labazov // BOTH-TRAP: [[TRAP]]:
18f0bbda00SArtem Labazov // TRAPV-NEXT: llvm.ubsantrap
19f0bbda00SArtem Labazov // CATCH_UB: @__ubsan_handle_negate_overflow
20f0bbda00SArtem Labazov // BOTH-TRAP-NEXT: unreachable
21f0bbda00SArtem Labazov // BOTH-TRAP: [[CONT]]:
22f0bbda00SArtem Labazov // BOTH-TRAP-NEXT: [[ABSCOND:%.*]] = icmp slt i32 [[X]], 0
23f0bbda00SArtem Labazov // BOTH-TRAP-NEXT: select i1 [[ABSCOND]], i32 [[NEGV]], i32 [[X]]
24f0bbda00SArtem Labazov return abs(x);
25f0bbda00SArtem Labazov }
26f0bbda00SArtem Labazov
babsi(int x)27f0bbda00SArtem Labazov int babsi(int x) {
28*0d8b8648SFangrui Song // WRAPV: [[ABS:%.*]] = call i32 @llvm.abs.i32(i32 %0, i1 false)
29*0d8b8648SFangrui Song // WRAPV-NEXT: ret i32 [[ABS]]
30f0bbda00SArtem Labazov //
31f0bbda00SArtem Labazov // BOTH-TRAP: [[NEG:%.*]] = call { i32, i1 } @llvm.ssub.with.overflow.i32(i32 0, i32 [[X:%.*]])
32f0bbda00SArtem Labazov // BOTH-TRAP: [[NEGV:%.*]] = extractvalue { i32, i1 } [[NEG]], 0
33f0bbda00SArtem Labazov // BOTH-TRAP: [[OFL:%.*]] = extractvalue { i32, i1 } [[NEG]], 1
34f0bbda00SArtem Labazov // BOTH-TRAP: [[NOFL:%.*]] = xor i1 [[OFL]], true
35f0bbda00SArtem Labazov // BOTH-TRAP: br i1 [[NOFL]], label %[[CONT:.*]], label %[[TRAP:[a-zA-Z_.]*]]
36f0bbda00SArtem Labazov // BOTH-TRAP: [[TRAP]]:
37f0bbda00SArtem Labazov // TRAPV-NEXT: llvm.ubsantrap
38f0bbda00SArtem Labazov // CATCH_UB: @__ubsan_handle_negate_overflow
39f0bbda00SArtem Labazov // BOTH-TRAP-NEXT: unreachable
40f0bbda00SArtem Labazov // BOTH-TRAP: [[CONT]]:
41f0bbda00SArtem Labazov // BOTH-TRAP-NEXT: [[ABSCOND:%.*]] = icmp slt i32 [[X]], 0
42f0bbda00SArtem Labazov // BOTH-TRAP-NEXT: select i1 [[ABSCOND]], i32 [[NEGV]], i32 [[X]]
43f0bbda00SArtem Labazov return __builtin_abs(x);
44f0bbda00SArtem Labazov }
45