test/CodeGen/Thumb2/2010-04-26-CopyRegCrash.ll

   1 ; RUN: llc < %s -mtriple=thumbv7-apple-darwin
   2 ; Radar 7896289
   3
   4 target datalayout = "e-p:32:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-i64:32:32-f32:32:32-f64:32:32-v64:64:64-v128:128:128-a0:0:32-n32"
   5 target triple = "thumbv7-apple-darwin10"
   6
   7 define void @test(i32 %mode) nounwind optsize noinline {
   8 entry:
   9   br i1 undef, label %return, label %bb3
  10
  11 bb3:                                              ; preds = %entry
  12   br i1 undef, label %bb15, label %bb18
  13
  14 bb15:                                             ; preds = %bb3
  15   unreachable
  16
  17 bb18:                                             ; preds = %bb3
  18   switch i32 %mode, label %return [
  19     i32 0, label %bb26
  20     i32 1, label %bb56
  21     i32 2, label %bb107
  22     i32 6, label %bb150.preheader
  23     i32 9, label %bb310.preheader
  24     i32 13, label %bb414.preheader
  25     i32 15, label %bb468.preheader
  26     i32 16, label %bb522.preheader
  27   ]
  28
  29 bb150.preheader:                                  ; preds = %bb18
  30   br i1 undef, label %bb154, label %bb160
  31
  32 bb310.preheader:                                  ; preds = %bb18
  33   unreachable
  34
  35 bb414.preheader:                                  ; preds = %bb18
  36   unreachable
  37
  38 bb468.preheader:                                  ; preds = %bb18
  39   unreachable
  40
  41 bb522.preheader:                                  ; preds = %bb18
  42   unreachable
  43
  44 bb26:                                             ; preds = %bb18
  45   unreachable
  46
  47 bb56:                                             ; preds = %bb18
  48   unreachable
  49
  50 bb107:                                            ; preds = %bb18
  51   br label %bb110
  52
  53 bb110:                                            ; preds = %bb122, %bb107
  54   %asmtmp.i.i179 = tail call i16 asm "rev16 $0, $1\0A", "=l,l"(i16 undef) nounwind ; <i16> [#uses=1]
  55   %asmtmp.i.i178 = tail call i16 asm "rev16 $0, $1\0A", "=l,l"(i16 %asmtmp.i.i179) nounwind ; <i16> [#uses=1]
  56   store i16 %asmtmp.i.i178, i16* undef, align 2
  57   br i1 undef, label %bb122, label %bb121
  58
  59 bb121:                                            ; preds = %bb110
  60   br label %bb122
  61
  62 bb122:                                            ; preds = %bb121, %bb110
  63   br label %bb110
  64
  65 bb154:                                            ; preds = %bb150.preheader
  66   unreachable
  67
  68 bb160:                                            ; preds = %bb150.preheader
  69   unreachable
  70
  71 return:                                           ; preds = %bb18, %entry
  72   ret void
  73 }