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https://github.com/RPCS3/llvm-mirror.git
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1861624c2e
Because the PowerPC vmrgh* and vmrgl* instructions have a built-in big-endian bias, it is necessary to swap their inputs in little-endian mode when using them to implement a vector shuffle. This was previously missed in the vector LE implementation. There was already logic to distinguish between unary and "normal" vmrg* vector shuffles, so this patch extends that logic to use a third option: "swapped" vmrg* vector shuffles that are used for little endian in place of the "normal" ones. I've updated the vec-shuffle-le.ll test to check for the expected register ordering on the generated instructions. This bug was discovered when testing the LE and ELFv2 patches for safety if they were backported to 3.4. A different vectorization decision was made in 3.4 than on mainline trunk, and that exposed the problem. I've verified this fix takes care of that issue. llvm-svn: 213915
204 lines
7.7 KiB
LLVM
204 lines
7.7 KiB
LLVM
; RUN: llc < %s -mtriple=powerpc64le-unknown-linux-gnu -mattr=+altivec | FileCheck %s
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define void @VPKUHUM_xy(<16 x i8>* %A, <16 x i8>* %B) {
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entry:
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; CHECK: VPKUHUM_xy:
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%tmp = load <16 x i8>* %A
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%tmp2 = load <16 x i8>* %B
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%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>
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; CHECK: vpkuhum
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store <16 x i8> %tmp3, <16 x i8>* %A
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ret void
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}
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define void @VPKUHUM_xx(<16 x i8>* %A) {
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entry:
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; CHECK: VPKUHUM_xx:
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%tmp = load <16 x i8>* %A
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%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>
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; CHECK: vpkuhum
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store <16 x i8> %tmp2, <16 x i8>* %A
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ret void
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}
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define void @VPKUWUM_xy(<16 x i8>* %A, <16 x i8>* %B) {
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entry:
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; CHECK: VPKUWUM_xy:
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%tmp = load <16 x i8>* %A
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%tmp2 = load <16 x i8>* %B
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%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>
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; CHECK: vpkuwum
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store <16 x i8> %tmp3, <16 x i8>* %A
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ret void
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}
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define void @VPKUWUM_xx(<16 x i8>* %A) {
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entry:
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; CHECK: VPKUWUM_xx:
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%tmp = load <16 x i8>* %A
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%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>
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; CHECK: vpkuwum
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store <16 x i8> %tmp2, <16 x i8>* %A
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ret void
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}
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define void @VMRGLB_xy(<16 x i8>* %A, <16 x i8>* %B) {
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entry:
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; CHECK: VMRGLB_xy:
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%tmp = load <16 x i8>* %A
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%tmp2 = load <16 x i8>* %B
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%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>
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; CHECK: lvx [[REG1:[0-9]+]]
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; CHECK: lvx [[REG2:[0-9]+]]
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; CHECK: vmrglb [[REG3:[0-9]+]], [[REG2]], [[REG1]]
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store <16 x i8> %tmp3, <16 x i8>* %A
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ret void
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}
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define void @VMRGLB_xx(<16 x i8>* %A) {
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entry:
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; CHECK: VMRGLB_xx:
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%tmp = load <16 x i8>* %A
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%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>
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; CHECK: vmrglb
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store <16 x i8> %tmp2, <16 x i8>* %A
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ret void
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}
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define void @VMRGHB_xy(<16 x i8>* %A, <16 x i8>* %B) {
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entry:
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; CHECK: VMRGHB_xy:
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%tmp = load <16 x i8>* %A
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%tmp2 = load <16 x i8>* %B
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%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>
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; CHECK: lvx [[REG1:[0-9]+]]
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; CHECK: lvx [[REG2:[0-9]+]]
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; CHECK: vmrghb [[REG3:[0-9]+]], [[REG2]], [[REG1]]
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store <16 x i8> %tmp3, <16 x i8>* %A
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ret void
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}
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define void @VMRGHB_xx(<16 x i8>* %A) {
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entry:
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; CHECK: VMRGHB_xx:
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%tmp = load <16 x i8>* %A
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%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>
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; CHECK: vmrghb
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store <16 x i8> %tmp2, <16 x i8>* %A
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ret void
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}
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define void @VMRGLH_xy(<16 x i8>* %A, <16 x i8>* %B) {
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entry:
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; CHECK: VMRGLH_xy:
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%tmp = load <16 x i8>* %A
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%tmp2 = load <16 x i8>* %B
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%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>
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; CHECK: lvx [[REG1:[0-9]+]]
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; CHECK: lvx [[REG2:[0-9]+]]
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; CHECK: vmrglh [[REG3:[0-9]+]], [[REG2]], [[REG1]]
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store <16 x i8> %tmp3, <16 x i8>* %A
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ret void
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}
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define void @VMRGLH_xx(<16 x i8>* %A) {
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entry:
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; CHECK: VMRGLH_xx:
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%tmp = load <16 x i8>* %A
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%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>
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; CHECK: vmrglh
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store <16 x i8> %tmp2, <16 x i8>* %A
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ret void
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}
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define void @VMRGHH_xy(<16 x i8>* %A, <16 x i8>* %B) {
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entry:
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; CHECK: VMRGHH_xy:
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%tmp = load <16 x i8>* %A
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%tmp2 = load <16 x i8>* %B
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%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>
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; CHECK: lvx [[REG1:[0-9]+]]
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; CHECK: lvx [[REG2:[0-9]+]]
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; CHECK: vmrghh [[REG3:[0-9]+]], [[REG2]], [[REG1]]
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store <16 x i8> %tmp3, <16 x i8>* %A
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ret void
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}
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define void @VMRGHH_xx(<16 x i8>* %A) {
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entry:
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; CHECK: VMRGHH_xx:
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%tmp = load <16 x i8>* %A
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%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>
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; CHECK: vmrghh
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store <16 x i8> %tmp2, <16 x i8>* %A
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ret void
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}
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define void @VMRGLW_xy(<16 x i8>* %A, <16 x i8>* %B) {
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entry:
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; CHECK: VMRGLW_xy:
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%tmp = load <16 x i8>* %A
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%tmp2 = load <16 x i8>* %B
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%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>
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; CHECK: lvx [[REG1:[0-9]+]]
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; CHECK: lvx [[REG2:[0-9]+]]
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; CHECK: vmrglw [[REG3:[0-9]+]], [[REG2]], [[REG1]]
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store <16 x i8> %tmp3, <16 x i8>* %A
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ret void
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}
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define void @VMRGLW_xx(<16 x i8>* %A) {
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entry:
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; CHECK: VMRGLW_xx:
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%tmp = load <16 x i8>* %A
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%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>
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; CHECK: vmrglw
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store <16 x i8> %tmp2, <16 x i8>* %A
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ret void
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}
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define void @VMRGHW_xy(<16 x i8>* %A, <16 x i8>* %B) {
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entry:
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; CHECK: VMRGHW_xy:
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%tmp = load <16 x i8>* %A
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%tmp2 = load <16 x i8>* %B
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%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>
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; CHECK: lvx [[REG1:[0-9]+]]
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; CHECK: lvx [[REG2:[0-9]+]]
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; CHECK: vmrghw [[REG3:[0-9]+]], [[REG2]], [[REG1]]
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store <16 x i8> %tmp3, <16 x i8>* %A
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ret void
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}
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define void @VMRGHW_xx(<16 x i8>* %A) {
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entry:
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; CHECK: VMRGHW_xx:
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%tmp = load <16 x i8>* %A
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%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>
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; CHECK: vmrghw
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store <16 x i8> %tmp2, <16 x i8>* %A
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ret void
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}
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define void @VSLDOI_xy(<16 x i8>* %A, <16 x i8>* %B) {
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entry:
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; CHECK: VSLDOI_xy:
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%tmp = load <16 x i8>* %A
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%tmp2 = load <16 x i8>* %B
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%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>
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; CHECK: vsldoi
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store <16 x i8> %tmp3, <16 x i8>* %A
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ret void
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}
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define void @VSLDOI_xx(<16 x i8>* %A) {
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entry:
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; CHECK: VSLDOI_xx:
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%tmp = load <16 x i8>* %A
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%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>
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; CHECK: vsldoi
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store <16 x i8> %tmp2, <16 x i8>* %A
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ret void
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}
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