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
23 lines
1.3 KiB
C++
23 lines
1.3 KiB
C++
// RUN: %clang_cc1 -triple x86_64-linux-gnu -emit-llvm -o - %s -fsanitize=function -fno-sanitize-recover=all | FileCheck %s
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// CHECK-LABEL: define{{.*}} void @_Z3funv() #0 prologue <{ i32, i32 }> <{ i32 846595819, i32 trunc (i64 sub (i64 ptrtoint (i8** @0 to i64), i64 ptrtoint (void ()* @_Z3funv to i64)) to i32) }> {
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void fun() {}
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// CHECK-LABEL: define{{.*}} void @_Z6callerPFvvE(void ()* noundef %f)
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// CHECK: getelementptr <{ i32, i32 }>, <{ i32, i32 }>* {{.*}}, i32 0, i32 0, !nosanitize
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// CHECK: load i32, i32* {{.*}}, align {{.*}}, !nosanitize
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// CHECK: icmp eq i32 {{.*}}, 846595819, !nosanitize
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// CHECK: br i1 {{.*}}, label %[[LABEL1:.*]], label %[[LABEL4:.*]], !nosanitize
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// CHECK: [[LABEL1]]:
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// CHECK: getelementptr <{ i32, i32 }>, <{ i32, i32 }>* {{.*}}, i32 0, i32 1, !nosanitize
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// CHECK: load i32, i32* {{.*}}, align {{.*}}, !nosanitize
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// CHECK: icmp eq i8* {{.*}}, bitcast ({ i8*, i8* }* @_ZTIFvvE to i8*), !nosanitize
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// CHECK: br i1 {{.*}}, label %[[LABEL3:.*]], label %[[LABEL2:[^,]*]], {{.*}}!nosanitize
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// CHECK: [[LABEL2]]:
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// CHECK: call void @__ubsan_handle_function_type_mismatch_v1_abort(i8* {{.*}}, i64 {{.*}}, i64 {{.*}}, i64 {{.*}}) #{{.*}}, !nosanitize
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// CHECK-NOT: unreachable
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// CHECK: br label %[[LABEL3]], !nosanitize
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// CHECK: [[LABEL3]]:
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// CHECK: br label %[[LABEL4]], !nosanitize
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void caller(void (*f)()) { f(); }
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