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
18 lines
442 B
C++
18 lines
442 B
C++
// RUN: %clang_cc1 %s -triple i386-unknown-unknown -emit-llvm -o - | FileCheck %s
|
|
// PR7291
|
|
|
|
struct Foo {
|
|
unsigned file_id;
|
|
|
|
Foo(unsigned arg);
|
|
};
|
|
|
|
Foo::Foo(unsigned arg) : file_id(arg = 42)
|
|
{ }
|
|
|
|
// CHECK: define {{.*}} @_ZN3FooC2Ej(%struct.Foo* {{[^,]*}} %this, i32 noundef %arg) unnamed_addr
|
|
// CHECK: [[ARG:%.*]] = alloca i32
|
|
// CHECK: store i32 42, i32* [[ARG]]
|
|
// CHECK: store i32 42, i32* %{{.*}}
|
|
// CHECK: ret {{void|%struct.Foo}}
|