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Re-apply r111568 with a fix for the clang self-host.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111665 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Owen Anderson
2010-08-20 18:24:43 +00:00
parent e82e7700ea
commit a4cba04a03
2 changed files with 68 additions and 0 deletions
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21
test/Transforms/InstCombine/2010-08-19-StoreNarrowing.ll Normal file
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; RUN: opt -S -instcombine %s | not grep and
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"
target triple = "x86_64-apple-darwin10.0.0"
%class.A = type { i8, [3 x i8] }
define void @_ZN1AC2Ev(%class.A* %this) nounwind ssp align 2 {
entry:
%0 = bitcast %class.A* %this to i32* ; <i32*> [#uses=5]
%1 = load i32* %0, align 4 ; <i32> [#uses=1]
%2 = and i32 %1, -8 ; <i32> [#uses=2]
store i32 %2, i32* %0, align 4
%3 = and i32 %2, -57 ; <i32> [#uses=1]
%4 = or i32 %3, 8 ; <i32> [#uses=2]
store i32 %4, i32* %0, align 4
%5 = and i32 %4, -65 ; <i32> [#uses=2]
store i32 %5, i32* %0, align 4
%6 = and i32 %5, -129 ; <i32> [#uses=1]
store i32 %6, i32* %0, align 4
ret void
}