mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-19 02:52:53 +02:00
584c5f9c62
Some code want to check that *any* call within a function has the 'returns twice' attribute, not just that the current function has one. llvm-svn: 142221
30 lines
547 B
LLVM
30 lines
547 B
LLVM
; RUN: opt < %s -tailcallelim -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(i32* %x) {
|
|
bb:
|
|
%tmp75 = tail call i32 @setjmp(i32* %x)
|
|
call void @bar()
|
|
ret void
|
|
}
|
|
|
|
declare i32 @setjmp(i32*) returns_twice
|
|
|
|
; CHECK: foo2
|
|
; CHECK-NOT: tail call void @bar()
|
|
|
|
define void @foo2(i32* %x) {
|
|
bb:
|
|
%tmp75 = tail call i32 @zed2(i32* %x)
|
|
call void @bar()
|
|
ret void
|
|
}
|
|
declare i32 @zed2(i32*) returns_twice
|