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[PowerPC] Swap arguments to vpkuhum/vpkuwum on little-endian

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In commit r213915, Bill fixed little-endian usage of vmrgh* and vmrgl*
by swapping the input arguments.  As it turns out, the exact same fix
is also required for the vpkuhum/vpkuwum patterns.

This fixes another regression in llvmpipe when vector support is
enabled.

Reviewed by Bill Schmidt.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214718 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Ulrich Weigand
2014-08-04 13:53:40 +00:00
parent c245c18ba3
commit c568629589
4 changed files with 74 additions and 38 deletions
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8
test/CodeGen/PowerPC/vec_shuffle_le.ll
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@@ -6,7 +6,9 @@ entry:
%tmp = load <16 x i8>* %A
%tmp2 = load <16 x i8>* %B
%tmp3 = shufflevector <16 x i8> %tmp, <16 x i8> %tmp2, <16 x i32> <i32 0, i32 2, i32 4, i32 6, i32 8, i32 10, i32 12, i32 14, i32 16, i32 18, i32 20, i32 22, i32 24, i32 26, i32 28, i32 30>
; CHECK: vpkuhum
; CHECK: lvx [[REG1:[0-9]+]]
; CHECK: lvx [[REG2:[0-9]+]]
; CHECK: vpkuhum [[REG3:[0-9]+]], [[REG2]], [[REG1]]
store <16 x i8> %tmp3, <16 x i8>* %A
ret void
}
@@ -27,7 +29,9 @@ entry:
%tmp = load <16 x i8>* %A
%tmp2 = load <16 x i8>* %B
%tmp3 = shufflevector <16 x i8> %tmp, <16 x i8> %tmp2, <16 x i32> <i32 0, i32 1, i32 4, i32 5, i32 8, i32 9, i32 12, i32 13, i32 16, i32 17, i32 20, i32 21, i32 24, i32 25, i32 28, i32 29>
; CHECK: vpkuwum
; CHECK: lvx [[REG1:[0-9]+]]
; CHECK: lvx [[REG2:[0-9]+]]
; CHECK: vpkuwum [[REG3:[0-9]+]], [[REG2]], [[REG1]]
store <16 x i8> %tmp3, <16 x i8>* %A
ret void
}