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llvm-6502/test/Transforms/InstCombine/pr2645-1.ll
Dan Gohman f2f6ce65b7 Change tests from "opt %s" to "opt < %s" so that opt doesn't see the
input filename so that opt doesn't print the input filename in the
output so that grep lines in the tests don't unintentionally match
strings in the input filename.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81537 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-11 18:01:28 +00:00

40 lines
1.8 KiB
LLVM

; RUN: opt < %s -instcombine -S | grep shufflevector
; PR2645
; instcombine shouldn't delete the shufflevector.
define internal void @""(i8*, i32, i8*) {
; <label>:3
br label %4
; <label>:4 ; preds = %6, %3
%.0 = phi i32 [ 0, %3 ], [ %19, %6 ] ; <i32> [#uses=4]
%5 = icmp slt i32 %.0, %1 ; <i1> [#uses=1]
br i1 %5, label %6, label %20
; <label>:6 ; preds = %4
%7 = getelementptr i8* %2, i32 %.0 ; <i8*> [#uses=1]
%8 = bitcast i8* %7 to <4 x i16>* ; <<4 x i16>*> [#uses=1]
%9 = load <4 x i16>* %8, align 1 ; <<4 x i16>> [#uses=1]
%10 = bitcast <4 x i16> %9 to <1 x i64> ; <<1 x i64>> [#uses=1]
%11 = call <2 x i64> @foo(<1 x i64> %10)
; <<2 x i64>> [#uses=1]
%12 = bitcast <2 x i64> %11 to <4 x i32> ; <<4 x i32>> [#uses=1]
%13 = bitcast <4 x i32> %12 to <8 x i16> ; <<8 x i16>> [#uses=2]
%14 = shufflevector <8 x i16> %13, <8 x i16> %13, <8 x i32> < i32 0, i32 0, i32 1, i32 1, i32 2, i32 2, i32 3, i32 3 > ; <<8 x i16>> [#uses=1]
%15 = bitcast <8 x i16> %14 to <4 x i32> ; <<4 x i32>> [#uses=1]
%16 = sitofp <4 x i32> %15 to <4 x float> ; <<4 x float>> [#uses=1]
%17 = getelementptr i8* %0, i32 %.0 ; <i8*> [#uses=1]
%18 = bitcast i8* %17 to <4 x float>* ; <<4 x float>*> [#uses=1]
store <4 x float> %16, <4 x float>* %18, align 1
%19 = add i32 %.0, 1 ; <i32> [#uses=1]
br label %4
; <label>:20 ; preds = %4
call void @llvm.x86.mmx.emms( )
ret void
}
declare <2 x i64> @foo(<1 x i64>)
declare void @llvm.x86.mmx.emms( )