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1b1c8d83d3
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
19 lines
511 B
C
19 lines
511 B
C
// RUN: %clang_cc1 -triple x86_64-apple-macosx10.10.0 -emit-llvm -Oz -o - %s | FileCheck %s
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// CHECK: define{{.*}} i32 @foo2(i32 noundef %a) local_unnamed_addr [[ATTRS2:#[0-9]+]] {
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// CHECK: define{{.*}} i32 @foo1(i32 noundef %a) local_unnamed_addr [[ATTRS1:#[0-9]+]] {
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int foo1(int);
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int foo2(int a) {
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return foo1(a + 2);
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}
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__attribute__((optnone))
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int foo1(int a) {
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return a + 1;
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}
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// CHECK: attributes [[ATTRS2]] = { {{.*}}optsize{{.*}} }
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// CHECK: attributes [[ATTRS1]] = { {{.*}}optnone{{.*}} }
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