llvm/test/Transforms/NewGVN/2010-05-08-OneBit.ll

   1 ; RUN: opt < %s -newgvn
   2 ; PR7052
   3
   4 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
   5 target triple = "x86_64-unknown-linux-gnu"
   6
   7 define i32 @main(i32 %argc, i8** nocapture %argv) personality i32 (...)* @__gxx_personality_v0 {
   8 entry:
   9   %0 = getelementptr inbounds i8, i8* undef, i64 5    ; <i8*> [#uses=1]
  10   %1 = bitcast i8* %0 to i32*                     ; <i32*> [#uses=1]
  11   store i32 undef, i32* %1, align 1
  12   br i1 undef, label %k121.i.i, label %l117.i.i
  13
  14 l117.i.i:                                         ; preds = %entry
  15   invoke fastcc void @foo()
  16           to label %.noexc5 unwind label %landing_pad
  17
  18 .noexc5:                                          ; preds = %l117.i.i
  19   unreachable
  20
  21 k121.i.i:                                         ; preds = %entry
  22   br i1 undef, label %l129.i.i, label %k133.i.i
  23
  24 l129.i.i:                                         ; preds = %k121.i.i
  25   invoke fastcc void @foo()
  26           to label %.noexc7 unwind label %landing_pad
  27
  28 .noexc7:                                          ; preds = %l129.i.i
  29   unreachable
  30
  31 k133.i.i:                                         ; preds = %k121.i.i
  32   %2 = getelementptr i8, i8* undef, i64 5             ; <i8*> [#uses=1]
  33   %3 = bitcast i8* %2 to i1*                      ; <i1*> [#uses=1]
  34   %4 = load i1, i1* %3                                ; <i1> [#uses=1]
  35   br i1 %4, label %k151.i.i, label %l147.i.i
  36
  37 l147.i.i:                                         ; preds = %k133.i.i
  38   invoke fastcc void @foo()
  39           to label %.noexc10 unwind label %landing_pad
  40
  41 .noexc10:                                         ; preds = %l147.i.i
  42   unreachable
  43
  44 k151.i.i:                                         ; preds = %k133.i.i
  45   ret i32 0
  46
  47 landing_pad:                                      ; preds = %l147.i.i, %l129.i.i, %l117.i.i
  48   %exn = landingpad {i8*, i32}
  49             cleanup
  50   switch i32 undef, label %fin [
  51     i32 1, label %catch1
  52     i32 2, label %catch
  53   ]
  54
  55 fin:                                              ; preds = %landing_pad
  56   unreachable
  57
  58 catch:                                            ; preds = %landing_pad
  59   ret i32 1
  60
  61 catch1:                                           ; preds = %landing_pad
  62   ret i32 2
  63 }
  64
  65 declare fastcc void @foo()
  66
  67 declare i32 @__gxx_personality_v0(...)