1b1c8d83d3
Turning on `enable_noundef_analysis` flag allows better codegen by removing freeze instructions. I modified clang by renaming `enable_noundef_analysis` flag to `disable-noundef-analysis` and turning it off by default. Test updates are made as a separate patch: D108453 Reviewed By: eugenis Differential Revision: https://reviews.llvm.org/D105169
56 lines
2.6 KiB
C
56 lines
2.6 KiB
C
// RUN: %clang_cc1 -emit-llvm -o - %s -stack-protector 0 | FileCheck -check-prefix=DEF -check-prefix=NOSSP %s
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// RUN: %clang_cc1 -emit-llvm -o - %s -stack-protector 1 | FileCheck -check-prefix=DEF -check-prefix=SSP %s
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// RUN: %clang_cc1 -emit-llvm -o - %s -stack-protector 2 | FileCheck -check-prefix=DEF -check-prefix=SSPSTRONG %s
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// RUN: %clang_cc1 -emit-llvm -o - %s -stack-protector 3 | FileCheck -check-prefix=DEF -check-prefix=SSPREQ %s
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// RUN: %clang_cc1 -emit-llvm -o - %s -fsanitize=safe-stack | FileCheck -check-prefix=DEF -check-prefix=SAFESTACK-NOSSP %s
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// RUN: %clang_cc1 -emit-llvm -o - %s -fsanitize=safe-stack -stack-protector 0 | FileCheck -check-prefix=DEF -check-prefix=SAFESTACK-NOSSP %s
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// RUN: %clang_cc1 -emit-llvm -o - %s -fsanitize=safe-stack -stack-protector 1 | FileCheck -check-prefix=DEF -check-prefix=SAFESTACK-SSP %s
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// RUN: %clang_cc1 -emit-llvm -o - %s -fsanitize=safe-stack -stack-protector 2 | FileCheck -check-prefix=DEF -check-prefix=SAFESTACK-SSPSTRONG %s
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// RUN: %clang_cc1 -emit-llvm -o - %s -fsanitize=safe-stack -stack-protector 3 | FileCheck -check-prefix=DEF -check-prefix=SAFESTACK-SSPREQ %s
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typedef __SIZE_TYPE__ size_t;
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int printf(const char * _Format, ...);
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size_t strlen(const char *s);
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char *strcpy(char *s1, const char *s2);
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// DEF: define {{.*}}void @test1(i8* noundef %msg) #[[A:.*]] {
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void test1(const char *msg) {
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char a[strlen(msg) + 1];
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strcpy(a, msg);
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printf("%s\n", a);
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}
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// DEF: define {{.*}}void @test2(i8* noundef %msg) #[[B:.*]] {
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__attribute__((no_stack_protector))
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void test2(const char *msg) {
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char a[strlen(msg) + 1];
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strcpy(a, msg);
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printf("%s\n", a);
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}
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// NOSSP-NOT: attributes #[[A]] = {{.*}} ssp
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// SSP: attributes #[[A]] = {{.*}} ssp{{ }}
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// SSPSTRONG: attributes #[[A]] = {{.*}} sspstrong
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// SSPREQ: attributes #[[A]] = {{.*}} sspreq
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// SAFESTACK-NOSSP: attributes #[[A]] = {{.*}} safestack
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// SAFESTACK-NOSSP-NOT: ssp
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// SAFESTACK-SSP: attributes #[[A]] = {{.*}} safestack ssp{{ }}
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// SAFESTACK-SSPSTRONG: attributes #[[A]] = {{.*}} safestack sspstrong
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// SAFESTACK-SSPREQ: attributes #[[A]] = {{.*}} safestack sspreq
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// NOSSP-NOT: attributes #[[B]] = {{.*}} ssp
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// SSP-NOT: attributes #[[B]] = {{.*}} ssp{{ }}
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// SSPSTRONG-NOT: attributes #[[B]] = {{.*}} sspstrong
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// SSPREQ-NOT: attributes #[[B]] = {{.*}} sspreq
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// SAFESTACK-SSP: attributes #[[B]] = {{.*}} safestack
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// SAFESTACK-SSP-NOT: attributes #[[B]] = {{.*}} safestack ssp{{ }}
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// SAFESTACK-SSPSTRONG: attributes #[[B]] = {{.*}} safestack
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// SAFESTACK-SSPSTRONG-NOT: attributes #[[B]] = {{.*}} safestack sspstrong
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// SAFESTACK-SSPREQ: attributes #[[B]] = {{.*}} safestack
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// SAFESTACK-SSPREQ-NOT: attributes #[[B]] = {{.*}} safestack sspreq
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