39 lines
1.2 KiB
C
39 lines
1.2 KiB
C
// RUN: %clang_cc1 -triple x86_64-apple-darwin %s -emit-llvm -o - -fsanitize=unsigned-integer-overflow | FileCheck %s --check-prefix=UNSIGNED
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// RUN: %clang_cc1 -triple x86_64-apple-darwin %s -emit-llvm -o - -ftrapv | FileCheck %s --check-prefix=TRAPV
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// RUN: %clang_cc1 -triple x86_64-apple-darwin %s -emit-llvm -o - -fsanitize=unsigned-integer-overflow -ftrapv | FileCheck %s --check-prefix=BOTH
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// Verify that -ftrapv and -fsanitize=unsigned-integer-overflow
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// work together as expected
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// UNSIGNED: @test_signed
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// TRAPV: @test_signed
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// BOTH: @test_signed
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void test_signed() {
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extern volatile int a, b, c;
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// UNSIGNED: add nsw i32
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// UNSIGNED-NOT: overflow
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// TRAPV: sadd.with.overflow.i32
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// TRAPV-NOT: @__ubsan
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// TRAPV: llvm.ubsantrap
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// BOTH: sadd.with.overflow.i32
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// BOTH-NOT: @__ubsan
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// BOTH: llvm.ubsantrap
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a = b + c;
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}
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// UNSIGNED: @test_unsigned
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// TRAPV: @test_unsigned
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// BOTH: @test_unsigned
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void test_unsigned() {
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extern volatile unsigned x, y, z;
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// UNSIGNED: uadd.with.overflow.i32
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// UNSIGNED-NOT: llvm.trap
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// UNSIGNED: ubsan
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// TRAPV-NOT: overflow
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// TRAPV-NOT: llvm.trap
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// BOTH: uadd.with.overflow.i32
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// BOTH: @__ubsan
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// BOTH-NOT: llvm.ubsantrap
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x = y + z;
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}
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