c07339c675
Summary:
This fixes pr33372.cpp under the new pass manager.
ASan adds padding to globals. For example, it will change a {i32, i32, i32} to a {{i32, i32, i32}, [52 x i8]}. However, when loading from the {i32, i32, i32}, InstCombine may (after various optimizations) end up loading 16 bytes instead of 12, likely because it thinks the [52 x i8] padding is ok to load from. But ASan checks that padding should not be loaded from.
Ultimately this is an issue of *San passes wanting to be run after all optimizations. This change moves the module passes right next to the corresponding function passes.
Also remove comment that's no longer relevant, this is the last ASan/MSan/TSan failure under the NPM (hopefully...).
As mentioned in https://reviews.llvm.org/rG1285e8bcac2c54ddd924ffb813b2b187467ac2a6, NPM doesn't support LTO + sanitizers, so modified some tests that test for that.
Reviewers: leonardchan, vitalybuka
Subscribers: cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D81323
22 lines
869 B
C
22 lines
869 B
C
// RUN: %clang_cc1 -triple x86_64-linux-gnu -fsanitize=address -emit-llvm -O3 -fdebug-pass-manager -fexperimental-new-pass-manager -o - %s 2>&1 | FileCheck %s
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// RUN: %clang_cc1 -triple x86_64-linux-gnu -fsanitize=thread -emit-llvm -O3 -fdebug-pass-manager -fexperimental-new-pass-manager -o - %s 2>&1 | FileCheck %s
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// RUN: %clang_cc1 -triple x86_64-linux-gnu -fsanitize=memory -emit-llvm -O3 -fdebug-pass-manager -fexperimental-new-pass-manager -o - %s 2>&1 | FileCheck %s
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// This is regression test for PR42877
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typedef struct a *b;
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struct a {
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int c;
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};
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int d;
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b e;
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static void f(b g) {
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for (d = g->c;;)
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;
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}
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void h() { f(e); }
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// CHECK: Running pass: {{.*}}SanitizerPass on {{.*}}sanitizer-module-constructor.c
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// CHECK-NOT: Running pass: LoopSimplifyPass on {{.*}}san.module_ctor
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// CHECK: Running analysis: DominatorTreeAnalysis on {{.*}}san.module_ctor
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