xref: /llvm-project/llvm/test/CodeGen/X86/2008-04-09-BranchFolding.ll (revision 5ecd363295089ad2db3c428ab1ee08ef1864ce3b)
1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
2; RUN: llc < %s -mtriple=i686-- | FileCheck %s
3
4	%struct..0anon = type { i32 }
5	%struct.binding_level = type { ptr, ptr, ptr, ptr, ptr, ptr, i8, i8, i8, i8, i8, i32, ptr }
6	%struct.lang_decl = type opaque
7	%struct.rtx_def = type { i16, i8, i8, [1 x %struct..0anon] }
8	%struct.tree_decl = type { [12 x i8], ptr, i32, ptr, i32, i8, i8, i8, i8, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, %struct..0anon, { ptr }, ptr, ptr }
9	%struct.tree_node = type { %struct.tree_decl }
10
11define fastcc ptr @pushdecl(ptr %x) nounwind  {
12; CHECK-LABEL: pushdecl:
13; CHECK:       # %bb.0: # %entry
14; CHECK-NEXT:    movb $1, %al
15; CHECK-NEXT:    testb %al, %al
16; CHECK-NEXT:    jne .LBB0_1
17; CHECK-NEXT:  # %bb.2: # %bb17.i
18; CHECK-NEXT:    xorl %eax, %eax
19; CHECK-NEXT:    retl
20; CHECK-NEXT:  .LBB0_1: # %bb160
21; CHECK-NEXT:    testb %al, %al
22; CHECK-NEXT:    xorl %eax, %eax
23; CHECK-NEXT:    retl
24entry:
25	%tmp3.i40 = icmp eq ptr null, null		; <i1> [#uses=2]
26	br label %bb140
27bb140:		; preds = %entry
28	br i1 %tmp3.i40, label %bb160, label %bb17.i
29bb17.i:		; preds = %bb140
30	ret ptr null
31bb143:		; preds = %entry
32	%tmp8.i43 = load ptr, ptr null, align 4		; <ptr> [#uses=1]
33	br i1 %tmp3.i40, label %bb160, label %bb9.i48
34bb9.i48:		; preds = %bb143
35	ret ptr null
36bb160:		; preds = %bb143, %bb140
37	%t.0.reg2mem.0 = phi ptr [ null, %bb140 ], [ %tmp8.i43, %bb143 ]		; <ptr> [#uses=1]
38	%tmp162 = icmp eq ptr %t.0.reg2mem.0, null		; <i1> [#uses=2]
39	br i1 %tmp162, label %bb174, label %bb165
40bb165:		; preds = %bb160
41	br label %bb174
42bb174:		; preds = %bb165, %bb160
43	%line.0 = phi i32 [ 0, %bb165 ], [ undef, %bb160 ]		; <i32> [#uses=1]
44	%file.0 = phi ptr [ null, %bb165 ], [ undef, %bb160 ]		; <ptr> [#uses=1]
45	br i1 %tmp162, label %bb344, label %bb73.i
46bb73.i:		; preds = %bb174
47	br i1 false, label %bb226.i, label %bb220.i
48bb220.i:		; preds = %bb73.i
49	ret ptr null
50bb226.i:		; preds = %bb73.i
51	br i1 false, label %bb260, label %bb273.i
52bb273.i:		; preds = %bb226.i
53	ret ptr null
54bb260:		; preds = %bb226.i
55	tail call void (ptr, i32, ...) @pedwarn_with_file_and_line( ptr %file.0, i32 %line.0, ptr null ) nounwind
56	ret ptr null
57bb344:		; preds = %bb174
58	ret ptr null
59}
60
61declare void @pedwarn_with_file_and_line(ptr, i32, ...) nounwind
62