Don't emit a bit test if there is only one case the test can yield false. A simple...
[oota-llvm.git] / test / CodeGen / X86 / personality.ll
1 ; RUN: llc < %s -disable-cfi -mtriple=x86_64-apple-darwin9 -disable-cgp-branch-opts | FileCheck %s -check-prefix=X64
2 ; RUN: llc < %s -disable-cfi -mtriple=i386-apple-darwin9 -disable-cgp-branch-opts | FileCheck %s -check-prefix=X32
3 ; PR1632
4
5 define void @_Z1fv() {
6 entry:
7   invoke void @_Z1gv()
8           to label %return unwind label %unwind
9
10 unwind:                                           ; preds = %entry
11   br i1 false, label %eh_then, label %cleanup20
12
13 eh_then:                                          ; preds = %unwind
14   invoke void @__cxa_end_catch()
15           to label %return unwind label %unwind10
16
17 unwind10:                                         ; preds = %eh_then
18   %upgraded.eh_select13 = tail call i32 (i8*, i8*, ...)* @llvm.eh.selector(i8* null, i8* bitcast (void ()* @__gxx_personality_v0 to i8*), i32 1)
19   %upgraded.eh_select131 = sext i32 %upgraded.eh_select13 to i64
20   %tmp18 = icmp slt i64 %upgraded.eh_select131, 0
21   br i1 %tmp18, label %filter, label %cleanup20
22
23 filter:                                           ; preds = %unwind10
24   unreachable
25
26 cleanup20:                                        ; preds = %unwind10, %unwind
27   %eh_selector.0 = phi i64 [ 0, %unwind ], [ %upgraded.eh_select131, %unwind10 ]
28   ret void
29
30 return:                                           ; preds = %eh_then, %entry
31   ret void
32 }
33
34 declare void @_Z1gv()
35
36 declare void @__gxx_personality_v0()
37
38 declare void @__cxa_end_catch()
39
40 declare i32 @llvm.eh.selector(i8*, i8*, ...) nounwind
41
42 ; X64:      zPLR
43 ; X64:      .byte 155
44 ; X64-NEXT: .long       ___gxx_personality_v0@GOTPCREL+4
45
46 ; X32:        .section  __IMPORT,__pointers,non_lazy_symbol_pointers
47 ; X32-NEXT: L___gxx_personality_v0$non_lazy_ptr:
48 ; X32-NEXT:   .indirect_symbol ___gxx_personality_v0
49
50 ; X32:      zPLR
51 ; X32:      .byte 155
52 ; X32-NEXT: :
53 ; X32-NEXT: .long       L___gxx_personality_v0$non_lazy_ptr-