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
13 lines
348 B
C++
13 lines
348 B
C++
// RUN: %clang_cc1 -triple thumbv7--windows-itanium -fdeclspec -fms-compatibility -fms-compatibility-version=19.0 -emit-llvm -o - %s | FileCheck %s
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void *g();
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thread_local static void *c = g();
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void f(void *p) {
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c = p;
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}
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// CHECK-LABEL: @_Z1fPv(i8* noundef %p)
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// CHECK-NOT: call i8** @_ZTWL1c()
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// CHECK: call arm_aapcs_vfpcc i8** @_ZTWL1c()
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