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
12 lines
523 B
C
12 lines
523 B
C
// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -emit-llvm -o - %s | FileCheck %s
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// RUN: %clang_cc1 -triple i686-unknown-linux-gnu -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-OK
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void (__attribute__((regparm(3), stdcall)) *pf) ();
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void (__attribute__((regparm(2), stdcall)) foo)(int a) {
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}
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// CHECK: @pf ={{.*}} global void (...)* null
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// CHECK: define{{.*}} void @foo(i32 noundef %a)
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// CHECK-OK: @pf ={{.*}} global void (...)* null
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// CHECK-OK: define{{.*}} x86_stdcallcc void @foo(i32 inreg noundef %a)
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