forked from OSchip/llvm-project
88 lines
2.3 KiB
LLVM
88 lines
2.3 KiB
LLVM
|
; RUN: opt -ipconstprop -S < %s | FileCheck %s
|
||
|
|
;
|
||
|
|
;
|
||
|
|
; /---------------------------------------|
|
||
|
|
; | /----------------------|----|
|
||
|
|
; | | /-----| |
|
||
|
|
; V V V | |
|
||
|
|
; void broker(int (*cb0)(int), int (*cb1)(int), int (*cb2)(int), int, int);
|
||
|
|
;
|
||
|
|
; static int cb0(int zero) {
|
||
|
|
; return zero;
|
||
|
|
; }
|
||
|
|
; static int cb1(int unknown) {
|
||
|
|
; return unknown;
|
||
|
|
; }
|
||
|
|
; static int cb2(int unknown) {
|
||
|
|
; cb0(0);
|
||
|
|
; return unknown;
|
||
|
|
; }
|
||
|
|
; static int cb3(int unknown) {
|
||
|
|
; return unknown;
|
||
|
|
; }
|
||
|
|
; static int cb4(int unknown) {
|
||
|
|
; return unknown;
|
||
|
|
; }
|
||
|
|
;
|
||
|
|
; void foo() {
|
||
|
|
; cb0(0);
|
||
|
|
; cb3(1);
|
||
|
|
; broker(cb0, cb1, cb0, 0, 1);
|
||
|
|
; broker(cb1, cb2, cb2, 0, 1);
|
||
|
|
; broker(cb3, cb2, cb3, 0, 1);
|
||
|
|
; broker(cb4, cb4, cb4, 0, 1);
|
||
|
|
; }
|
||
|
|
;
|
||
|
|
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
|
||
|
|
|
||
|
|
define internal i32 @cb0(i32 %zero) {
|
||
|
|
entry:
|
||
|
|
; CHECK: @cb0
|
||
|
|
; CHECK-NEXT: entry
|
||
|
|
; CHECK-NEXT: ret i32 0
|
||
|
|
ret i32 %zero
|
||
|
|
}
|
||
|
|
|
||
|
|
define internal i32 @cb1(i32 %unknown) {
|
||
|
|
entry:
|
||
|
|
; CHECK: ret i32 %unknown
|
||
|
|
ret i32 %unknown
|
||
|
|
}
|
||
|
|
|
||
|
|
define internal i32 @cb2(i32 %unknown) {
|
||
|
|
entry:
|
||
|
|
%call = call i32 @cb0(i32 0)
|
||
|
|
; CHECK: ret i32 %unknown
|
||
|
|
ret i32 %unknown
|
||
|
|
}
|
||
|
|
|
||
|
|
define internal i32 @cb3(i32 %unknown) {
|
||
|
|
entry:
|
||
|
|
; CHECK: ret i32 %unknown
|
||
|
|
ret i32 %unknown
|
||
|
|
}
|
||
|
|
|
||
|
|
define internal i32 @cb4(i32 %unknown) {
|
||
|
|
entry:
|
||
|
|
; CHECK: ret i32 %unknown
|
||
|
|
ret i32 %unknown
|
||
|
|
}
|
||
|
|
|
||
|
|
define void @foo() {
|
||
|
|
entry:
|
||
|
|
%call = call i32 @cb0(i32 0)
|
||
|
|
%call1 = call i32 @cb3(i32 1)
|
||
|
|
call void @broker(i32 (i32)* nonnull @cb0, i32 (i32)* nonnull @cb1, i32 (i32)* nonnull @cb0, i32 0, i32 1)
|
||
|
|
call void @broker(i32 (i32)* nonnull @cb1, i32 (i32)* nonnull @cb2, i32 (i32)* nonnull @cb2, i32 0, i32 1)
|
||
|
|
call void @broker(i32 (i32)* nonnull @cb3, i32 (i32)* nonnull @cb2, i32 (i32)* nonnull @cb3, i32 0, i32 1)
|
||
|
|
call void @broker(i32 (i32)* nonnull @cb4, i32 (i32)* nonnull @cb4, i32 (i32)* nonnull @cb4, i32 0, i32 1)
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
declare !callback !3 void @broker(i32 (i32)*, i32 (i32)*, i32 (i32)*, i32, i32)
|
||
|
|
|
||
|
|
!0 = !{i64 0, i64 3, i1 false}
|
||
|
|
!1 = !{i64 1, i64 4, i1 false}
|
||
|
|
!2 = !{i64 2, i64 3, i1 false}
|
||
|
|
!3 = !{!0, !2, !1}
|