test/CodeGen/PowerPC/2008-07-15-SignExtendInreg.ll

   1 ; RUN: llc < %s
   2 target datalayout = "E-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f128:64:128"
   3 target triple = "powerpc-apple-darwin9"
   4
   5 define i16 @t(i16* %dct) signext nounwind  {
   6 entry:
   7          load i16* null, align 2         ; <i16>:0 [#uses=2]
   8          lshr i16 %0, 11         ; <i16>:1 [#uses=0]
   9          trunc i16 %0 to i8              ; <i8>:2 [#uses=1]
  10          sext i8 %2 to i16               ; <i16>:3 [#uses=1]
  11          add i16 0, %3           ; <i16>:4 [#uses=1]
  12          sext i16 %4 to i32              ; <i32>:5 [#uses=1]
  13          %dcval.0.in = shl i32 %5, 0             ; <i32> [#uses=1]
  14          %dcval.0 = trunc i32 %dcval.0.in to i16         ; <i16>  [#uses=1]
  15          store i16 %dcval.0, i16* %dct, align 2
  16          ret i16 0
  17 }