mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-11-02 07:11:49 +00:00
3c5e60994f
Some code want to check that *any* call within a function has the 'returns twice' attribute, not just that the current function has one. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142221 91177308-0d34-0410-b5e6-96231b3b80d8
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
|