| ; RUN: opt < %s -passes=inline -S | FileCheck %s |
| ; RUN: opt < %s --passes=inline -S | FileCheck %s |
| |
| ; Test that functions with attribute optnone are not inlined. |
| ; Also test that only functions with attribute alwaysinline are |
| ; valid candidates for inlining if the caller has the optnone attribute. |
| |
| ; Function Attrs: alwaysinline nounwind readnone uwtable |
| define i32 @alwaysInlineFunction(i32 %a) #0 { |
| entry: |
| %mul = mul i32 %a, %a |
| ret i32 %mul |
| } |
| |
| ; Function Attrs: nounwind readnone uwtable |
| define i32 @simpleFunction(i32 %a) #1 { |
| entry: |
| %add = add i32 %a, %a |
| ret i32 %add |
| } |
| |
| ; Function Attrs: nounwind noinline optnone readnone uwtable |
| define i32 @OptnoneFunction(i32 %a) #2 { |
| entry: |
| %0 = tail call i32 @alwaysInlineFunction(i32 %a) |
| %1 = tail call i32 @simpleFunction(i32 %a) |
| %add = add i32 %0, %1 |
| ret i32 %add |
| } |
| |
| ; CHECK-LABEL: @OptnoneFunction |
| ; CHECK-NOT: call i32 @alwaysInlineFunction(i32 %a) |
| ; CHECK: call i32 @simpleFunction(i32 %a) |
| ; CHECK: ret |
| |
| ; Function Attrs: nounwind readnone uwtable |
| define i32 @bar(i32 %a) #1 { |
| entry: |
| %0 = tail call i32 @OptnoneFunction(i32 5) |
| %1 = tail call i32 @simpleFunction(i32 6) |
| %add = add i32 %0, %1 |
| ret i32 %add |
| } |
| |
| ; CHECK-LABEL: @bar |
| ; CHECK: call i32 @OptnoneFunction(i32 5) |
| ; CHECK-NOT: call i32 @simpleFunction(i32 6) |
| ; CHECK: ret |
| |
| |
| attributes #0 = { alwaysinline nounwind readnone uwtable } |
| attributes #1 = { nounwind readnone uwtable } |
| attributes #2 = { nounwind noinline optnone readnone uwtable } |