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

   1 ; RUN: opt < %s -passes=gvn
   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, ptr nocapture %argv) personality ptr @__gxx_personality_v0 {
   8 entry:
   9   %0 = getelementptr inbounds i8, ptr undef, i64 5    ; <ptr> [#uses=1]
  10   store i32 undef, ptr %0, align 1
  11   br i1 undef, label %k121.i.i, label %l117.i.i
  12
  13 l117.i.i:                                         ; preds = %entry
  14   invoke fastcc void @foo()
  15           to label %.noexc5 unwind label %landing_pad
  16
  17 .noexc5:                                          ; preds = %l117.i.i
  18   unreachable
  19
  20 k121.i.i:                                         ; preds = %entry
  21   br i1 undef, label %l129.i.i, label %k133.i.i
  22
  23 l129.i.i:                                         ; preds = %k121.i.i
  24   invoke fastcc void @foo()
  25           to label %.noexc7 unwind label %landing_pad
  26
  27 .noexc7:                                          ; preds = %l129.i.i
  28   unreachable
  29
  30 k133.i.i:                                         ; preds = %k121.i.i
  31   %1 = getelementptr i8, ptr undef, i64 5             ; <ptr> [#uses=1]
  32   %2 = load i1, ptr %1                                ; <i1> [#uses=1]
  33   br i1 %2, label %k151.i.i, label %l147.i.i
  34
  35 l147.i.i:                                         ; preds = %k133.i.i
  36   invoke fastcc void @foo()
  37           to label %.noexc10 unwind label %landing_pad
  38
  39 .noexc10:                                         ; preds = %l147.i.i
  40   unreachable
  41
  42 k151.i.i:                                         ; preds = %k133.i.i
  43   ret i32 0
  44
  45 landing_pad:                                      ; preds = %l147.i.i, %l129.i.i, %l117.i.i
  46   %exn = landingpad {ptr, i32}
  47             cleanup
  48   switch i32 undef, label %fin [
  49     i32 1, label %catch1
  50     i32 2, label %catch
  51   ]
  52
  53 fin:                                              ; preds = %landing_pad
  54   unreachable
  55
  56 catch:                                            ; preds = %landing_pad
  57   ret i32 1
  58
  59 catch1:                                           ; preds = %landing_pad
  60   ret i32 2
  61 }
  62
  63 declare fastcc void @foo()
  64
  65 declare i32 @__gxx_personality_v0(...)