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[Clang][Sanitizers] Add numerical sanitizer (#93783)
Add plumbing for the numerical sanitizer on Clang's side.
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// RUN: %clang_cc1 -triple x86_64-apple-darwin -emit-llvm -o - %s | FileCheck -check-prefix=WITHOUT %s | ||
// RUN: %clang_cc1 -triple x86_64-apple-darwin -emit-llvm -o - %s -fsanitize=numerical | FileCheck -check-prefix=NSAN %s | ||
// RUN: echo "src:%s" | sed -e 's/\\/\\\\/g' > %t | ||
// RUN: %clang_cc1 -triple x86_64-apple-darwin -emit-llvm -o - %s -fsanitize=numerical -fsanitize-ignorelist=%t | FileCheck -check-prefix=BL %s | ||
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// WITHOUT: NoNSAN3{{.*}}) [[NOATTR:#[0-9]+]] | ||
// BL: NoNSAN3{{.*}}) [[NOATTR:#[0-9]+]] | ||
// NSAN: NoNSAN3{{.*}}) [[NOATTR:#[0-9]+]] | ||
__attribute__((no_sanitize("numerical"))) | ||
int NoNSAN3(int *a) { return *a; } | ||
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// WITHOUT: NSANOk{{.*}}) [[NOATTR]] | ||
// BL: NSANOk{{.*}}) [[NOATTR]] | ||
// NSAN: NSANOk{{.*}}) [[WITH:#[0-9]+]] | ||
int NSANOk(int *a) { return *a; } | ||
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// WITHOUT: TemplateNSANOk{{.*}}) [[NOATTR]] | ||
// BL: TemplateNSANOk{{.*}}) [[NOATTR]] | ||
// NSAN: TemplateNSANOk{{.*}}) [[WITH]] | ||
template<int i> | ||
int TemplateNSANOk() { return i; } | ||
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// WITHOUT: TemplateNoNSAN{{.*}}) [[NOATTR]] | ||
// BL: TemplateNoNSAN{{.*}}) [[NOATTR]] | ||
// NSAN: TemplateNoNSAN{{.*}}) [[NOATTR]] | ||
template<int i> | ||
__attribute__((no_sanitize("numerical"))) | ||
int TemplateNoNSAN() { return i; } | ||
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int force_instance = TemplateNSANOk<42>() + TemplateNoNSAN<42>(); | ||
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// WITHOUT: attributes [[NOATTR]] = { mustprogress noinline nounwind{{.*}} } | ||
// BL: attributes [[NOATTR]] = { mustprogress noinline nounwind{{.*}} } | ||
// NSAN: attributes [[WITH]] = { mustprogress noinline nounwind optnone sanitize_numerical_stability{{.*}} } |
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11 changes: 11 additions & 0 deletions
11
clang/test/Lexer/has_feature_numerical_stability_sanitizer.cpp
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// RUN: %clang_cc1 -E -fsanitize=numerical %s -o - | FileCheck --check-prefix=CHECK-NSAN %s | ||
// RUN: %clang_cc1 -E %s -o - | FileCheck --check-prefix=CHECK-NO-NSAN %s | ||
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#if __has_feature(numerical_stability_sanitizer) | ||
int NumericalStabilitySanitizerEnabled(); | ||
#else | ||
int NumericalStabilitySanitizerDisabled(); | ||
#endif | ||
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// CHECK-NSAN: NumericalStabilitySanitizerEnabled | ||
// CHECK-NO-NSAN: NumericalStabilitySanitizerDisabled |