aacfbb953e
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 [Clang/Test]: Rename enable_noundef_analysis to disable-noundef-analysis and turn it off by default (2) This patch updates test files after D105169. Autogenerated test codes are changed by `utils/update_cc_test_checks.py,` and non-autogenerated test codes are changed as follows: (1) I wrote a python script that (partially) updates the tests using regex: {F18594904} The script is not perfect, but I believe it gives hints about which patterns are updated to have `noundef` attached. (2) The remaining tests are updated manually. Reviewed By: eugenis Differential Revision: https://reviews.llvm.org/D108453 Resolve lit failures in clang after 8ca4b3e's land Fix lit test failures in clang-ppc* and clang-x64-windows-msvc Fix missing failures in clang-ppc64be* and retry fixing clang-x64-windows-msvc Fix internal_clone(aarch64) inline assembly
39 lines
1.3 KiB
C++
39 lines
1.3 KiB
C++
// RUN: %clang_cc1 -fexceptions -triple x86_64-windows-msvc -debug-info-kind=limited -gcodeview -fdeclspec -S -emit-llvm %s -o - | FileCheck %s
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struct Foo {
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int x;
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};
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struct Bar {
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int y;
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};
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extern Foo *gv_foo;
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extern Bar *gv_bar;
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extern "C" void doit() {
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gv_foo = new Foo();
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gv_bar = new Bar();
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}
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// CHECK-LABEL: define {{.*}}void @doit
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// CHECK: call {{.*}} i8* {{.*}}@"??2@YAPEAX_K@Z"(i64 noundef 4) {{.*}} !heapallocsite [[DBG_FOO:!.*]]
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// CHECK: call {{.*}} i8* {{.*}}@"??2@YAPEAX_K@Z"(i64 noundef 4) {{.*}} !heapallocsite [[DBG_BAR:!.*]]
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extern "C" void useinvoke() {
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struct HasDtor {
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~HasDtor() { delete gv_foo; }
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} o;
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gv_foo = new Foo();
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}
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// CHECK-LABEL: define {{.*}}void @useinvoke
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// CHECK: invoke {{.*}} i8* {{.*}}@"??2@YAPEAX_K@Z"(i64 noundef 4)
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// CHECK-NEXT: to label {{.*}} unwind label {{.*}} !heapallocsite [[DBG_FOO]]
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// CHECK: [[DBG_FOO]] = distinct !DICompositeType(tag: DW_TAG_structure_type,
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// CHECK-SAME: name: "Foo"
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// CHECK: [[DBG_BAR]] = distinct !DICompositeType(tag: DW_TAG_structure_type,
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// CHECK-SAME: name: "Bar"
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// a new expression in a default arg has caused crashes in the past, add here to test that edge case
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void foo(int *a = new int) {}
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void bar() { foo(); }
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