| ; RUN: opt < %s -passes=tailcallelim -verify-dom-info -S | FileCheck %s |
| |
| ; Test that we don't tail call in a functions that calls returns_twice |
| ; functions. |
| |
| declare void @bar() |
| |
| ; CHECK: foo1 |
| ; CHECK-NOT: tail call void @bar() |
| |
| define void @foo1(ptr %x) { |
| bb: |
| %tmp75 = tail call i32 @setjmp(ptr %x) |
| call void @bar() |
| ret void |
| } |
| |
| declare i32 @setjmp(ptr) returns_twice |
| |
| ; CHECK: foo2 |
| ; CHECK-NOT: tail call void @bar() |
| |
| define void @foo2(ptr %x) { |
| bb: |
| %tmp75 = tail call i32 @zed2(ptr %x) |
| call void @bar() |
| ret void |
| } |
| declare i32 @zed2(ptr) returns_twice |