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Make better use of instructions that clear high bits; fix various 2-wide shuffle bugs.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45058 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng
2007-12-15 03:00:47 +00:00
parent 1d0ba37099
commit 7a831ce85f
7 changed files with 245 additions and 47 deletions
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42
test/CodeGen/X86/vec_shuffle-14.ll Normal file
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; RUN: llvm-as < %s | llc -march=x86 -mattr=+sse2
; RUN: llvm-as < %s | llc -march=x86 -mattr=+sse2 | grep movd | count 1
; RUN: llvm-as < %s | llc -march=x86-64 -mattr=+sse2 | grep movd | count 2
; RUN: llvm-as < %s | llc -march=x86-64 -mattr=+sse2 | grep movq | count 3
; RUN: llvm-as < %s | llc -march=x86 -mattr=+sse2 | not grep xor
define <4 x i32> @t1(i32 %a) nounwind {
entry:
%tmp = insertelement <4 x i32> undef, i32 %a, i32 0
%tmp6 = shufflevector <4 x i32> zeroinitializer, <4 x i32> %tmp, <4 x i32> < i32 4, i32 1, i32 2, i32 3 > ; <<4 x i32>> [#uses=1]
ret <4 x i32> %tmp6
}
define <2 x i64> @t2(i64 %a) nounwind {
entry:
%tmp = insertelement <2 x i64> undef, i64 %a, i32 0
%tmp6 = shufflevector <2 x i64> zeroinitializer, <2 x i64> %tmp, <2 x i32> < i32 2, i32 1 > ; <<4 x i32>> [#uses=1]
ret <2 x i64> %tmp6
}
define <2 x i64> @t3(<2 x i64>* %a) nounwind {
entry:
%tmp4 = load <2 x i64>* %a, align 16 ; <<2 x i64>> [#uses=1]
%tmp6 = bitcast <2 x i64> %tmp4 to <4 x i32> ; <<4 x i32>> [#uses=1]
%tmp7 = shufflevector <4 x i32> zeroinitializer, <4 x i32> %tmp6, <4 x i32> < i32 4, i32 5, i32 2, i32 3 > ; <<4 x i32>> [#uses=1]
%tmp8 = bitcast <4 x i32> %tmp7 to <2 x i64> ; <<2 x i64>> [#uses=1]
ret <2 x i64> %tmp8
}
define <2 x i64> @t4(<2 x i64> %a) nounwind {
entry:
%tmp5 = bitcast <2 x i64> %a to <4 x i32> ; <<4 x i32>> [#uses=1]
%tmp6 = shufflevector <4 x i32> zeroinitializer, <4 x i32> %tmp5, <4 x i32> < i32 4, i32 5, i32 2, i32 3 > ; <<4 x i32>> [#uses=1]
%tmp7 = bitcast <4 x i32> %tmp6 to <2 x i64> ; <<2 x i64>> [#uses=1]
ret <2 x i64> %tmp7
}
define <2 x i64> @t5(<2 x i64> %a) nounwind {
entry:
%tmp6 = shufflevector <2 x i64> zeroinitializer, <2 x i64> %a, <2 x i32> < i32 2, i32 1 > ; <<4 x i32>> [#uses=1]
ret <2 x i64> %tmp6
}