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https://github.com/c64scene-ar/llvm-6502.git
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856e13ddac
size but different element types, so that it filters out the cases that CreateShuffleVectorCast doesn't handle. This fixes rdar://9786827. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135721 91177308-0d34-0410-b5e6-96231b3b80d8
28 lines
981 B
LLVM
28 lines
981 B
LLVM
; RUN: opt -scalarrepl -S < %s | FileCheck %s
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; rdar://9786827
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; SROA should be able to handle the mixed types and eliminate the allocas here.
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; TODO: Currently it does this by falling back to integer "bags of bits".
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; With enough cleverness, it should be possible to convert between <3 x i32>
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; and <2 x i64> by using a combination of a bitcast and a shuffle.
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; CHECK: {
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; CHECK-NOT: alloca
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; CHECK: }
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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-f80:128:128-n8:16:32"
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target triple = "i386-apple-darwin11.0.0"
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define <2 x i64> @foo() nounwind {
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entry:
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%retval = alloca <3 x i32>, align 16
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%z = alloca <4 x i32>, align 16
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%tmp = load <4 x i32>* %z
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%tmp1 = shufflevector <4 x i32> %tmp, <4 x i32> undef, <3 x i32> <i32 0, i32 1, i32 2>
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store <3 x i32> %tmp1, <3 x i32>* %retval
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%0 = bitcast <3 x i32>* %retval to <2 x i64>*
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%1 = load <2 x i64>* %0, align 1
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ret <2 x i64> %1
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}
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