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llvm-mirror/test/CodeGen/PowerPC/vec_shuffle_le.ll

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[PPC64LE] Recognize shufflevector patterns for little endian Various masks on shufflevector instructions are recognizable as specific PowerPC instructions (vector pack, vector merge, etc.). There is existing code in PPCISelLowering.cpp to recognize the correct patterns for big endian code. The masks for these instructions are different for little endian code due to the big-endian numbering employed by these instructions. This patch adds the recognition code for little endian. I've added a new test case test/CodeGen/PowerPC/vec_shuffle_le.ll for this. The existing recognizer test (vec_shuffle.ll) is unnecessarily verbose and difficult to read, so I felt it was better to add a new test rather than modify the old one. llvm-svn: 210536
2014-06-10 16:35:01 +02:00
; RUN: llc < %s -mtriple=powerpc64le-unknown-linux-gnu -mattr=+altivec | FileCheck %s
define void @VPKUHUM_xy(<16 x i8>* %A, <16 x i8>* %B) {
entry:
; CHECK: VPKUHUM_xy:
%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
store <16 x i8> %tmp3, <16 x i8>* %A
ret void
}
define void @VPKUHUM_xx(<16 x i8>* %A) {
entry:
; CHECK: VPKUHUM_xx:
%tmp = load <16 x i8>* %A
%tmp2 = shufflevector <16 x i8> %tmp, <16 x i8> %tmp, <16 x i32> <i32 0, i32 2, i32 4, i32 6, i32 8, i32 10, i32 12, i32 14, i32 0, i32 2, i32 4, i32 6, i32 8, i32 10, i32 12, i32 14>
; CHECK: vpkuhum
store <16 x i8> %tmp2, <16 x i8>* %A
ret void
}
define void @VPKUWUM_xy(<16 x i8>* %A, <16 x i8>* %B) {
entry:
; CHECK: VPKUWUM_xy:
%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
store <16 x i8> %tmp3, <16 x i8>* %A
ret void
}
define void @VPKUWUM_xx(<16 x i8>* %A) {
entry:
; CHECK: VPKUWUM_xx:
%tmp = load <16 x i8>* %A
%tmp2 = shufflevector <16 x i8> %tmp, <16 x i8> %tmp, <16 x i32> <i32 0, i32 1, i32 4, i32 5, i32 8, i32 9, i32 12, i32 13, i32 0, i32 1, i32 4, i32 5, i32 8, i32 9, i32 12, i32 13>
; CHECK: vpkuwum
store <16 x i8> %tmp2, <16 x i8>* %A
ret void
}
define void @VMRGLB_xy(<16 x i8>* %A, <16 x i8>* %B) {
entry:
; CHECK: VMRGLB_xy:
%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 16, i32 1, i32 17, i32 2, i32 18, i32 3, i32 19, i32 4, i32 20, i32 5, i32 21, i32 6, i32 22, i32 7, i32 23>
; CHECK: vmrglb
store <16 x i8> %tmp3, <16 x i8>* %A
ret void
}
define void @VMRGLB_xx(<16 x i8>* %A) {
entry:
; CHECK: VMRGLB_xx:
%tmp = load <16 x i8>* %A
%tmp2 = shufflevector <16 x i8> %tmp, <16 x i8> %tmp, <16 x i32> <i32 0, i32 0, i32 1, i32 1, i32 2, i32 2, i32 3, i32 3, i32 4, i32 4, i32 5, i32 5, i32 6, i32 6, i32 7, i32 7>
; CHECK: vmrglb
store <16 x i8> %tmp2, <16 x i8>* %A
ret void
}
define void @VMRGHB_xy(<16 x i8>* %A, <16 x i8>* %B) {
entry:
; CHECK: VMRGHB_xy:
%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 8, i32 24, i32 9, i32 25, i32 10, i32 26, i32 11, i32 27, i32 12, i32 28, i32 13, i32 29, i32 14, i32 30, i32 15, i32 31>
; CHECK: vmrghb
store <16 x i8> %tmp3, <16 x i8>* %A
ret void
}
define void @VMRGHB_xx(<16 x i8>* %A) {
entry:
; CHECK: VMRGHB_xx:
%tmp = load <16 x i8>* %A
%tmp2 = shufflevector <16 x i8> %tmp, <16 x i8> %tmp, <16 x i32> <i32 8, i32 8, i32 9, i32 9, i32 10, i32 10, i32 11, i32 11, i32 12, i32 12, i32 13, i32 13, i32 14, i32 14, i32 15, i32 15>
; CHECK: vmrghb
store <16 x i8> %tmp2, <16 x i8>* %A
ret void
}
define void @VMRGLH_xy(<16 x i8>* %A, <16 x i8>* %B) {
entry:
; CHECK: VMRGLH_xy:
%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 16, i32 17, i32 2, i32 3, i32 18, i32 19, i32 4, i32 5, i32 20, i32 21, i32 6, i32 7, i32 22, i32 23>
; CHECK: vmrglh
store <16 x i8> %tmp3, <16 x i8>* %A
ret void
}
define void @VMRGLH_xx(<16 x i8>* %A) {
entry:
; CHECK: VMRGLH_xx:
%tmp = load <16 x i8>* %A
%tmp2 = shufflevector <16 x i8> %tmp, <16 x i8> %tmp, <16 x i32> <i32 0, i32 1, i32 0, i32 1, i32 2, i32 3, i32 2, i32 3, i32 4, i32 5, i32 4, i32 5, i32 6, i32 7, i32 6, i32 7>
; CHECK: vmrglh
store <16 x i8> %tmp2, <16 x i8>* %A
ret void
}
define void @VMRGHH_xy(<16 x i8>* %A, <16 x i8>* %B) {
entry:
; CHECK: VMRGHH_xy:
%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 8, i32 9, i32 24, i32 25, i32 10, i32 11, i32 26, i32 27, i32 12, i32 13, i32 28, i32 29, i32 14, i32 15, i32 30, i32 31>
; CHECK: vmrghh
store <16 x i8> %tmp3, <16 x i8>* %A
ret void
}
define void @VMRGHH_xx(<16 x i8>* %A) {
entry:
; CHECK: VMRGHH_xx:
%tmp = load <16 x i8>* %A
%tmp2 = shufflevector <16 x i8> %tmp, <16 x i8> %tmp, <16 x i32> <i32 8, i32 9, i32 8, i32 9, i32 10, i32 11, i32 10, i32 11, i32 12, i32 13, i32 12, i32 13, i32 14, i32 15, i32 14, i32 15>
; CHECK: vmrghh
store <16 x i8> %tmp2, <16 x i8>* %A
ret void
}
define void @VMRGLW_xy(<16 x i8>* %A, <16 x i8>* %B) {
entry:
; CHECK: VMRGLW_xy:
%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 2, i32 3, i32 16, i32 17, i32 18, i32 19, i32 4, i32 5, i32 6, i32 7, i32 20, i32 21, i32 22, i32 23>
; CHECK: vmrglw
store <16 x i8> %tmp3, <16 x i8>* %A
ret void
}
define void @VMRGLW_xx(<16 x i8>* %A) {
entry:
; CHECK: VMRGLW_xx:
%tmp = load <16 x i8>* %A
%tmp2 = shufflevector <16 x i8> %tmp, <16 x i8> %tmp, <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 4, i32 5, i32 6, i32 7>
; CHECK: vmrglw
store <16 x i8> %tmp2, <16 x i8>* %A
ret void
}
define void @VMRGHW_xy(<16 x i8>* %A, <16 x i8>* %B) {
entry:
; CHECK: VMRGHW_xy:
%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 8, i32 9, i32 10, i32 11, i32 24, i32 25, i32 26, i32 27, i32 12, i32 13, i32 14, i32 15, i32 28, i32 29, i32 30, i32 31>
; CHECK: vmrghw
store <16 x i8> %tmp3, <16 x i8>* %A
ret void
}
define void @VMRGHW_xx(<16 x i8>* %A) {
entry:
; CHECK: VMRGHW_xx:
%tmp = load <16 x i8>* %A
%tmp2 = shufflevector <16 x i8> %tmp, <16 x i8> %tmp, <16 x i32> <i32 8, i32 9, i32 10, i32 11, i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15, i32 12, i32 13, i32 14, i32 15>
; CHECK: vmrghw
store <16 x i8> %tmp2, <16 x i8>* %A
ret void
}
define void @VSLDOI_xy(<16 x i8>* %A, <16 x i8>* %B) {
entry:
; CHECK: VSLDOI_xy:
%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 19, i32 18, i32 17, i32 16, i32 15, i32 14, i32 13, i32 12, i32 11, i32 10, i32 9, i32 8, i32 7, i32 6, i32 5, i32 4>
; CHECK: vsldoi
store <16 x i8> %tmp3, <16 x i8>* %A
ret void
}
define void @VSLDOI_xx(<16 x i8>* %A) {
entry:
; CHECK: VSLDOI_xx:
%tmp = load <16 x i8>* %A
%tmp2 = shufflevector <16 x i8> %tmp, <16 x i8> %tmp, <16 x i32> <i32 3, i32 2, i32 1, i32 0, i32 15, i32 14, i32 13, i32 12, i32 11, i32 10, i32 9, i32 8, i32 7, i32 6, i32 5, i32 4>
; CHECK: vsldoi
store <16 x i8> %tmp2, <16 x i8>* %A
ret void
}
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