xref: /llvm-project/llvm/test/Transforms/SCCP/naked-return.ll (revision 8ebb3eac02a926ffa4298c12834c57aefb2e8579)
1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2; RUN: opt -passes=ipsccp -S %s | FileCheck %s
3
4target datalayout = "e-m:x-p:32:32-i64:64-f80:32-n8:16:32-a:0:32-S32"
5target triple = "i686-pc-windows-msvc19.0.24215"
6
7define i32 @dipsy(i32, i32) local_unnamed_addr #0 {
8; CHECK-LABEL: @dipsy(
9; CHECK-NEXT:  BasicBlock0:
10; CHECK-NEXT:    call void asm "\0D\0Apushl %ebp\0D\0Amovl 8(%esp),%eax\0D\0Amovl 12(%esp), %ebp\0D\0Acalll *%eax\0D\0Apopl %ebp\0D\0Aretl\0D\0A", ""()
11; CHECK-NEXT:    ret i32 0
12;
13BasicBlock0:
14  call void asm "\0D\0Apushl %ebp\0D\0Amovl 8(%esp),%eax\0D\0Amovl 12(%esp), %ebp\0D\0Acalll *%eax\0D\0Apopl %ebp\0D\0Aretl\0D\0A", ""()
15  ret i32 0
16}
17
18define void @tinkywinky(i32, i32, i32) local_unnamed_addr #0 {
19; CHECK-LABEL: @tinkywinky(
20; CHECK-NEXT:  BasicBlock1:
21; CHECK-NEXT:    call void asm "\0D\0A movl 12(%esp), %ebp\0D\0A movl 4(%esp), %eax\0D\0A movl 8(%esp), %esp\0D\0A jmpl *%eax\0D\0A", ""()
22; CHECK-NEXT:    ret void
23;
24BasicBlock1:
25  call void asm "\0D\0A    movl 12(%esp), %ebp\0D\0A    movl 4(%esp), %eax\0D\0A    movl 8(%esp), %esp\0D\0A    jmpl *%eax\0D\0A", ""()
26  ret void
27}
28
29define void @patatino(i32, i32, i32) local_unnamed_addr #1 {
30; CHECK-LABEL: @patatino(
31; CHECK-NEXT:  bb:
32; CHECK-NEXT:    [[TMP3:%.*]] = tail call i32 @dipsy(i32 [[TMP0:%.*]], i32 [[TMP1:%.*]]) #0
33; CHECK-NEXT:    tail call void @tinkywinky(i32 [[TMP3]], i32 [[TMP2:%.*]], i32 [[TMP1]]) #0
34; CHECK-NEXT:    ret void
35;
36bb:
37  %3 = tail call i32 @dipsy(i32 %0, i32 %1) #0
38; Check that we don't accidentally propagate zero.
39  tail call void @tinkywinky(i32 %3, i32 %2, i32 %1) #0
40  ret void
41}
42
43attributes #0 = { naked }
44attributes #1 = { "frame-pointer"="all" }
45