mirror of
https://github.com/RPCS3/llvm-mirror.git
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88 lines
2.3 KiB
LLVM
88 lines
2.3 KiB
LLVM
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; RUN: opt -ipconstprop -S < %s | FileCheck %s
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;
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;
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; /---------------------------------------|
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; | /----------------------|----|
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; | | /-----| |
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; V V V | |
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; void broker(int (*cb0)(int), int (*cb1)(int), int (*cb2)(int), int, int);
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;
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; static int cb0(int zero) {
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; return zero;
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; }
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; static int cb1(int unknown) {
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; return unknown;
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; }
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; static int cb2(int unknown) {
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; cb0(0);
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; return unknown;
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; }
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; static int cb3(int unknown) {
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; return unknown;
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; }
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; static int cb4(int unknown) {
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; return unknown;
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; }
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;
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; void foo() {
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; cb0(0);
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; cb3(1);
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; broker(cb0, cb1, cb0, 0, 1);
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; broker(cb1, cb2, cb2, 0, 1);
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; broker(cb3, cb2, cb3, 0, 1);
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; broker(cb4, cb4, cb4, 0, 1);
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; }
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;
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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define internal i32 @cb0(i32 %zero) {
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entry:
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; CHECK: @cb0
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; CHECK-NEXT: entry
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; CHECK-NEXT: ret i32 0
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ret i32 %zero
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}
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define internal i32 @cb1(i32 %unknown) {
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entry:
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; CHECK: ret i32 %unknown
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ret i32 %unknown
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}
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define internal i32 @cb2(i32 %unknown) {
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entry:
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%call = call i32 @cb0(i32 0)
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; CHECK: ret i32 %unknown
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ret i32 %unknown
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}
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define internal i32 @cb3(i32 %unknown) {
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entry:
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; CHECK: ret i32 %unknown
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ret i32 %unknown
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}
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define internal i32 @cb4(i32 %unknown) {
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entry:
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; CHECK: ret i32 %unknown
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ret i32 %unknown
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}
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define void @foo() {
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entry:
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%call = call i32 @cb0(i32 0)
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%call1 = call i32 @cb3(i32 1)
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call void @broker(i32 (i32)* nonnull @cb0, i32 (i32)* nonnull @cb1, i32 (i32)* nonnull @cb0, i32 0, i32 1)
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call void @broker(i32 (i32)* nonnull @cb1, i32 (i32)* nonnull @cb2, i32 (i32)* nonnull @cb2, i32 0, i32 1)
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call void @broker(i32 (i32)* nonnull @cb3, i32 (i32)* nonnull @cb2, i32 (i32)* nonnull @cb3, i32 0, i32 1)
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call void @broker(i32 (i32)* nonnull @cb4, i32 (i32)* nonnull @cb4, i32 (i32)* nonnull @cb4, i32 0, i32 1)
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ret void
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}
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declare !callback !3 void @broker(i32 (i32)*, i32 (i32)*, i32 (i32)*, i32, i32)
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!0 = !{i64 0, i64 3, i1 false}
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!1 = !{i64 1, i64 4, i1 false}
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!2 = !{i64 2, i64 3, i1 false}
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!3 = !{!0, !2, !1}
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