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new testcase for PR1473

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37361 91177308-0d34-0410-b5e6-96231b3b80d8
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Chris Lattner 2007-05-30 16:29:20 +00:00
parent f38ac5dd39
commit 548484d9a3
1 changed files with 14 additions and 0 deletions
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test/CodeGen/PowerPC/2007-05-30-dagcombine-miscomp.ll Normal file
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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"
target triple = "powerpc-apple-darwin8.8.0"
; RUN: llvm-as < %s | llc -march=ppc32 | grep {rlwinm r3, r3, 23, 30, 30}
; PR1473
define i8 @foo(i16 zext %a) zext {
%tmp2 = lshr i16 %a, 10 ; <i16> [#uses=1]
%tmp23 = trunc i16 %tmp2 to i8 ; <i8> [#uses=1]
%tmp4 = shl i8 %tmp23, 1 ; <i8> [#uses=1]
%tmp5 = and i8 %tmp4, 2 ; <i8> [#uses=1]
ret i8 %tmp5
}