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4b62b5cddd
Sanitizer instrumentation generally needs to be marked with !nosanitize, but we're not doing this properly for ubsan's overflow checks. r213291 has more information about why this is needed. llvm-svn: 302598
29 lines
1.2 KiB
C
29 lines
1.2 KiB
C
// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fsanitize=unsigned-integer-overflow -fsanitize-recover=unsigned-integer-overflow %s -emit-llvm -o - | FileCheck %s --check-prefix=RECOVER
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// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fsanitize=unsigned-integer-overflow %s -emit-llvm -o - | FileCheck %s --check-prefix=ABORT
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// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fsanitize=null,object-size,alignment -fsanitize-recover=object-size %s -emit-llvm -o - | FileCheck %s --check-prefix=PARTIAL
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// RECOVER: @test
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// ABORT: @test
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void test() {
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extern volatile unsigned x, y, z;
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// RECOVER: uadd.with.overflow.i32{{.*}}, !nosanitize
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// RECOVER: ubsan_handle_add_overflow({{.*}}, !nosanitize
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// RECOVER-NOT: unreachable
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// ABORT: uadd.with.overflow.i32{{.*}}, !nosanitize
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// ABORT: ubsan_handle_add_overflow_abort({{.*}}, !nosanitize
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// ABORT: unreachable{{.*}}, !nosanitize
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x = y + z;
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}
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void foo() {
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union { int i; } u;
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u.i=1;
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// PARTIAL: %[[SIZE:.*]] = call i64 @llvm.objectsize.i64.p0i8(i8* {{.*}}, i1 false, i1 false)
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// PARTIAL-NEXT: %[[CHECK0:.*]] = icmp uge i64 %[[SIZE]], 4
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// PARTIAL: br i1 %[[CHECK0]], {{.*}} !nosanitize
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// PARTIAL: call void @__ubsan_handle_type_mismatch_v1(
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}
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