[llvm] 7486de1 - [PowerPC] Provide patterns for permuted scalar to vector for pre-P8
Nemanja Ivanovic via llvm-commits
llvm-commits at lists.llvm.org
Tue Dec 29 04:50:07 PST 2020
Author: Nemanja Ivanovic
Date: 2020-12-29T06:49:25-06:00
New Revision: 7486de1b2eced2cccc7b0b95598e9ab45039d700
URL: https://github.com/llvm/llvm-project/commit/7486de1b2eced2cccc7b0b95598e9ab45039d700
DIFF: https://github.com/llvm/llvm-project/commit/7486de1b2eced2cccc7b0b95598e9ab45039d700.diff
LOG: [PowerPC] Provide patterns for permuted scalar to vector for pre-P8
We will emit these permuted nodes on all VSX little endian subtargets
but don't have the patterns available to match them on subtargets
that don't have direct moves.
Fixes: https://bugs.llvm.org/show_bug.cgi?id=47916
Added:
llvm/test/CodeGen/PowerPC/pr47916.ll
Modified:
llvm/lib/Target/PowerPC/PPCInstrVSX.td
llvm/lib/Target/PowerPC/PPCVSXSwapRemoval.cpp
llvm/test/CodeGen/PowerPC/canonical-merge-shuffles.ll
llvm/test/CodeGen/PowerPC/load-and-splat.ll
Removed:
################################################################################
diff --git a/llvm/lib/Target/PowerPC/PPCInstrVSX.td b/llvm/lib/Target/PowerPC/PPCInstrVSX.td
index 4e086366af24..136a53e66d62 100644
--- a/llvm/lib/Target/PowerPC/PPCInstrVSX.td
+++ b/llvm/lib/Target/PowerPC/PPCInstrVSX.td
@@ -2412,6 +2412,7 @@ def MrgWords {
// [HasVSX, IsBigEndian]
// [HasVSX, IsLittleEndian]
// [HasVSX, NoP9Vector]
+// [HasVSX, NoP9Vector, IsLittleEndian]
// [HasVSX, HasOnlySwappingMemOps]
// [HasVSX, HasOnlySwappingMemOps, IsBigEndian]
// [HasVSX, HasP8Vector]
@@ -3005,6 +3006,19 @@ defm : ScalToVecWPermute<
VSFRC)), sub_64)>;
} // HasVSX, NoP9Vector
+// Any little endian pre-Power9 VSX subtarget.
+let Predicates = [HasVSX, NoP9Vector, IsLittleEndian] in {
+// Load-and-splat using only X-Form VSX loads.
+defm : ScalToVecWPermute<
+ v2i64, (i64 (load xoaddr:$src)),
+ (XXPERMDIs (XFLOADf64 xoaddr:$src), 2),
+ (SUBREG_TO_REG (i64 1), (XFLOADf64 xoaddr:$src), sub_64)>;
+defm : ScalToVecWPermute<
+ v2f64, (f64 (load xoaddr:$src)),
+ (XXPERMDIs (XFLOADf64 xoaddr:$src), 2),
+ (SUBREG_TO_REG (i64 1), (XFLOADf64 xoaddr:$src), sub_64)>;
+} // HasVSX, NoP9Vector, IsLittleEndian
+
// Any VSX subtarget that only has loads and stores that load in big endian
// order regardless of endianness. This is really pre-Power9 subtargets.
let Predicates = [HasVSX, HasOnlySwappingMemOps] in {
diff --git a/llvm/lib/Target/PowerPC/PPCVSXSwapRemoval.cpp b/llvm/lib/Target/PowerPC/PPCVSXSwapRemoval.cpp
index b7ed8ce9f144..ff251f55afff 100644
--- a/llvm/lib/Target/PowerPC/PPCVSXSwapRemoval.cpp
+++ b/llvm/lib/Target/PowerPC/PPCVSXSwapRemoval.cpp
@@ -254,10 +254,11 @@ bool PPCVSXSwapRemoval::gatherVectorInstructions() {
if (!MO.isReg())
continue;
Register Reg = MO.getReg();
- if (isAnyVecReg(Reg, Partial)) {
+ // All operands need to be checked because there are instructions that
+ // operate on a partial register and produce a full register (such as
+ // XXPERMDIs).
+ if (isAnyVecReg(Reg, Partial))
RelevantInstr = true;
- break;
- }
}
if (!RelevantInstr)
diff --git a/llvm/test/CodeGen/PowerPC/canonical-merge-shuffles.ll b/llvm/test/CodeGen/PowerPC/canonical-merge-shuffles.ll
index cdd04b33318e..35b590dec1b1 100644
--- a/llvm/test/CodeGen/PowerPC/canonical-merge-shuffles.ll
+++ b/llvm/test/CodeGen/PowerPC/canonical-merge-shuffles.ll
@@ -8,6 +8,9 @@
; RUN: llc -verify-machineinstrs -mtriple=powerpc64le-unknown-linux-gnu \
; RUN: -mcpu=pwr8 -mattr=-vsx -ppc-asm-full-reg-names \
; RUN: -ppc-vsr-nums-as-vr < %s | FileCheck %s --check-prefix=CHECK-NOVSX
+; RUN: llc -verify-machineinstrs -mtriple=powerpc64le-unknown-linux-gnu \
+; RUN: -mcpu=pwr7 -ppc-asm-full-reg-names -ppc-vsr-nums-as-vr < %s | \
+; RUN: FileCheck %s --check-prefix=CHECK-P7
define dso_local <16 x i8> @testmrghb(<16 x i8> %a, <16 x i8> %b) local_unnamed_addr #0 {
; CHECK-P8-LABEL: testmrghb:
@@ -24,6 +27,11 @@ define dso_local <16 x i8> @testmrghb(<16 x i8> %a, <16 x i8> %b) local_unnamed_
; CHECK-NOVSX: # %bb.0: # %entry
; CHECK-NOVSX-NEXT: vmrghb v2, v3, v2
; CHECK-NOVSX-NEXT: blr
+;
+; CHECK-P7-LABEL: testmrghb:
+; CHECK-P7: # %bb.0: # %entry
+; CHECK-P7-NEXT: vmrghb v2, v3, v2
+; CHECK-P7-NEXT: blr
entry:
%shuffle = shufflevector <16 x i8> %a, <16 x i8> %b, <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>
ret <16 x i8> %shuffle
@@ -46,6 +54,11 @@ define dso_local <16 x i8> @testmrghb2(<16 x i8> %a, <16 x i8> %b) local_unnamed
; CHECK-NOVSX-NEXT: lvx v4, 0, r3
; CHECK-NOVSX-NEXT: vperm v2, v3, v2, v4
; CHECK-NOVSX-NEXT: blr
+;
+; CHECK-P7-LABEL: testmrghb2:
+; CHECK-P7: # %bb.0: # %entry
+; CHECK-P7-NEXT: vmrghb v2, v2, v3
+; CHECK-P7-NEXT: blr
entry:
%shuffle = shufflevector <16 x i8> %a, <16 x i8> %b, <16 x i32> <i32 24, i32 8, i32 25, i32 9, i32 26, i32 10, i32 27, i32 11, i32 28, i32 12, i32 29, i32 13, i32 30, i32 14, i32 31, i32 15>
ret <16 x i8> %shuffle
@@ -65,6 +78,11 @@ define dso_local <16 x i8> @testmrghh(<16 x i8> %a, <16 x i8> %b) local_unnamed_
; CHECK-NOVSX: # %bb.0: # %entry
; CHECK-NOVSX-NEXT: vmrghh v2, v3, v2
; CHECK-NOVSX-NEXT: blr
+;
+; CHECK-P7-LABEL: testmrghh:
+; CHECK-P7: # %bb.0: # %entry
+; CHECK-P7-NEXT: vmrghh v2, v3, v2
+; CHECK-P7-NEXT: blr
entry:
%shuffle = shufflevector <16 x i8> %a, <16 x i8> %b, <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>
ret <16 x i8> %shuffle
@@ -87,6 +105,11 @@ define dso_local <16 x i8> @testmrghh2(<16 x i8> %a, <16 x i8> %b) local_unnamed
; CHECK-NOVSX-NEXT: lvx v4, 0, r3
; CHECK-NOVSX-NEXT: vperm v2, v3, v2, v4
; CHECK-NOVSX-NEXT: blr
+;
+; CHECK-P7-LABEL: testmrghh2:
+; CHECK-P7: # %bb.0: # %entry
+; CHECK-P7-NEXT: vmrghh v2, v2, v3
+; CHECK-P7-NEXT: blr
entry:
%shuffle = shufflevector <16 x i8> %a, <16 x i8> %b, <16 x i32> <i32 24, i32 25, i32 8, i32 9, i32 26, i32 27, i32 10, i32 11, i32 28, i32 29, i32 12, i32 13, i32 30, i32 31, i32 14, i32 15>
ret <16 x i8> %shuffle
@@ -106,6 +129,11 @@ define dso_local <16 x i8> @testmrglb(<16 x i8> %a, <16 x i8> %b) local_unnamed_
; CHECK-NOVSX: # %bb.0: # %entry
; CHECK-NOVSX-NEXT: vmrglb v2, v3, v2
; CHECK-NOVSX-NEXT: blr
+;
+; CHECK-P7-LABEL: testmrglb:
+; CHECK-P7: # %bb.0: # %entry
+; CHECK-P7-NEXT: vmrglb v2, v3, v2
+; CHECK-P7-NEXT: blr
entry:
%shuffle = shufflevector <16 x i8> %a, <16 x i8> %b, <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>
ret <16 x i8> %shuffle
@@ -128,6 +156,11 @@ define dso_local <16 x i8> @testmrglb2(<16 x i8> %a, <16 x i8> %b) local_unnamed
; CHECK-NOVSX-NEXT: lvx v4, 0, r3
; CHECK-NOVSX-NEXT: vperm v2, v3, v2, v4
; CHECK-NOVSX-NEXT: blr
+;
+; CHECK-P7-LABEL: testmrglb2:
+; CHECK-P7: # %bb.0: # %entry
+; CHECK-P7-NEXT: vmrglb v2, v2, v3
+; CHECK-P7-NEXT: blr
entry:
%shuffle = shufflevector <16 x i8> %a, <16 x i8> %b, <16 x i32> <i32 16, i32 0, i32 17, i32 1, i32 18, i32 2, i32 19, i32 3, i32 20, i32 4, i32 21, i32 5, i32 22, i32 6, i32 23, i32 7>
ret <16 x i8> %shuffle
@@ -147,6 +180,11 @@ define dso_local <16 x i8> @testmrglh(<16 x i8> %a, <16 x i8> %b) local_unnamed_
; CHECK-NOVSX: # %bb.0: # %entry
; CHECK-NOVSX-NEXT: vmrglh v2, v3, v2
; CHECK-NOVSX-NEXT: blr
+;
+; CHECK-P7-LABEL: testmrglh:
+; CHECK-P7: # %bb.0: # %entry
+; CHECK-P7-NEXT: vmrglh v2, v3, v2
+; CHECK-P7-NEXT: blr
entry:
%shuffle = shufflevector <16 x i8> %a, <16 x i8> %b, <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>
ret <16 x i8> %shuffle
@@ -169,6 +207,11 @@ define dso_local <16 x i8> @testmrglh2(<16 x i8> %a, <16 x i8> %b) local_unnamed
; CHECK-NOVSX-NEXT: lvx v4, 0, r3
; CHECK-NOVSX-NEXT: vperm v2, v3, v2, v4
; CHECK-NOVSX-NEXT: blr
+;
+; CHECK-P7-LABEL: testmrglh2:
+; CHECK-P7: # %bb.0: # %entry
+; CHECK-P7-NEXT: vmrglh v2, v2, v3
+; CHECK-P7-NEXT: blr
entry:
%shuffle = shufflevector <16 x i8> %a, <16 x i8> %b, <16 x i32> <i32 16, i32 17, i32 0, i32 1, i32 18, i32 19, i32 2, i32 3, i32 20, i32 21, i32 4, i32 5, i32 22, i32 23, i32 6, i32 7>
ret <16 x i8> %shuffle
@@ -188,6 +231,11 @@ define dso_local <16 x i8> @testmrghw(<16 x i8> %a, <16 x i8> %b) local_unnamed_
; CHECK-NOVSX: # %bb.0: # %entry
; CHECK-NOVSX-NEXT: vmrghw v2, v3, v2
; CHECK-NOVSX-NEXT: blr
+;
+; CHECK-P7-LABEL: testmrghw:
+; CHECK-P7: # %bb.0: # %entry
+; CHECK-P7-NEXT: vmrghw v2, v3, v2
+; CHECK-P7-NEXT: blr
entry:
%shuffle = shufflevector <16 x i8> %a, <16 x i8> %b, <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>
ret <16 x i8> %shuffle
@@ -210,6 +258,11 @@ define dso_local <16 x i8> @testmrghw2(<16 x i8> %a, <16 x i8> %b) local_unnamed
; CHECK-NOVSX-NEXT: lvx v4, 0, r3
; CHECK-NOVSX-NEXT: vperm v2, v3, v2, v4
; CHECK-NOVSX-NEXT: blr
+;
+; CHECK-P7-LABEL: testmrghw2:
+; CHECK-P7: # %bb.0: # %entry
+; CHECK-P7-NEXT: vmrghw v2, v2, v3
+; CHECK-P7-NEXT: blr
entry:
%shuffle = shufflevector <16 x i8> %a, <16 x i8> %b, <16 x i32> <i32 24, i32 25, i32 26, i32 27, i32 8, i32 9, i32 10, i32 11, i32 28, i32 29, i32 30, i32 31, i32 12, i32 13, i32 14, i32 15>
ret <16 x i8> %shuffle
@@ -229,6 +282,11 @@ define dso_local <16 x i8> @testmrglw(<16 x i8> %a, <16 x i8> %b) local_unnamed_
; CHECK-NOVSX: # %bb.0: # %entry
; CHECK-NOVSX-NEXT: vmrglw v2, v3, v2
; CHECK-NOVSX-NEXT: blr
+;
+; CHECK-P7-LABEL: testmrglw:
+; CHECK-P7: # %bb.0: # %entry
+; CHECK-P7-NEXT: vmrglw v2, v3, v2
+; CHECK-P7-NEXT: blr
entry:
%shuffle = shufflevector <16 x i8> %a, <16 x i8> %b, <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>
ret <16 x i8> %shuffle
@@ -251,6 +309,11 @@ define dso_local <16 x i8> @testmrglw2(<16 x i8> %a, <16 x i8> %b) local_unnamed
; CHECK-NOVSX-NEXT: lvx v4, 0, r3
; CHECK-NOVSX-NEXT: vperm v2, v3, v2, v4
; CHECK-NOVSX-NEXT: blr
+;
+; CHECK-P7-LABEL: testmrglw2:
+; CHECK-P7: # %bb.0: # %entry
+; CHECK-P7-NEXT: vmrglw v2, v2, v3
+; CHECK-P7-NEXT: blr
entry:
%shuffle = shufflevector <16 x i8> %a, <16 x i8> %b, <16 x i32> <i32 16, i32 17, i32 18, i32 19, i32 0, i32 1, i32 2, i32 3, i32 20, i32 21, i32 22, i32 23, i32 4, i32 5, i32 6, i32 7>
ret <16 x i8> %shuffle
@@ -259,10 +322,9 @@ entry:
define dso_local <8 x i16> @testmrglb3(<8 x i8>* nocapture readonly %a) local_unnamed_addr #0 {
; CHECK-P8-LABEL: testmrglb3:
; CHECK-P8: # %bb.0: # %entry
-; CHECK-P8-NEXT: ld r3, 0(r3)
-; CHECK-P8-NEXT: xxlxor v2, v2, v2
-; CHECK-P8-NEXT: mtvsrd v3, r3
-; CHECK-P8-NEXT: vmrghb v2, v2, v3
+; CHECK-P8-NEXT: lxsdx v2, 0, r3
+; CHECK-P8-NEXT: xxlxor v3, v3, v3
+; CHECK-P8-NEXT: vmrghb v2, v3, v2
; CHECK-P8-NEXT: blr
;
; CHECK-P9-LABEL: testmrglb3:
@@ -284,6 +346,13 @@ define dso_local <8 x i16> @testmrglb3(<8 x i8>* nocapture readonly %a) local_un
; CHECK-NOVSX-NEXT: lvx v4, 0, r3
; CHECK-NOVSX-NEXT: vperm v2, v4, v2, v3
; CHECK-NOVSX-NEXT: blr
+;
+; CHECK-P7-LABEL: testmrglb3:
+; CHECK-P7: # %bb.0: # %entry
+; CHECK-P7-NEXT: lxsdx v2, 0, r3
+; CHECK-P7-NEXT: xxlxor v3, v3, v3
+; CHECK-P7-NEXT: vmrghb v2, v3, v2
+; CHECK-P7-NEXT: blr
entry:
%0 = load <8 x i8>, <8 x i8>* %a, align 8
%1 = zext <8 x i8> %0 to <8 x i16>
@@ -332,6 +401,21 @@ define dso_local void @no_crash_elt0_from_RHS(<2 x double>* noalias nocapture de
; CHECK-NOVSX-NEXT: li r3, 0
; CHECK-NOVSX-NEXT: stfd f1, 8(r30)
; CHECK-NOVSX-NEXT: std r3, 0(r30)
+;
+; CHECK-P7-LABEL: no_crash_elt0_from_RHS:
+; CHECK-P7: # %bb.0: # %test_entry
+; CHECK-P7-NEXT: mflr r0
+; CHECK-P7-NEXT: std r30, -16(r1) # 8-byte Folded Spill
+; CHECK-P7-NEXT: std r0, 16(r1)
+; CHECK-P7-NEXT: stdu r1, -48(r1)
+; CHECK-P7-NEXT: mr r30, r3
+; CHECK-P7-NEXT: bl dummy
+; CHECK-P7-NEXT: nop
+; CHECK-P7-NEXT: xxlxor f0, f0, f0
+; CHECK-P7-NEXT: # kill: def $f1 killed $f1 def $vsl1
+; CHECK-P7-NEXT: xxmrghd vs0, vs1, vs0
+; CHECK-P7-NEXT: xxswapd vs0, vs0
+; CHECK-P7-NEXT: stxvd2x vs0, 0, r30
test_entry:
%_div_result = tail call double @dummy()
%oldret = insertvalue { double, double } undef, double %_div_result, 0
@@ -364,6 +448,17 @@ define dso_local <16 x i8> @no_crash_bitcast(i32 %a) {
; CHECK-NOVSX-NEXT: lvx v2, 0, r4
; CHECK-NOVSX-NEXT: vperm v2, v3, v3, v2
; CHECK-NOVSX-NEXT: blr
+;
+; CHECK-P7-LABEL: no_crash_bitcast:
+; CHECK-P7: # %bb.0: # %entry
+; CHECK-P7-NEXT: addis r4, r2, .LCPI14_0 at toc@ha
+; CHECK-P7-NEXT: stw r3, -16(r1)
+; CHECK-P7-NEXT: addi r3, r1, -16
+; CHECK-P7-NEXT: addi r4, r4, .LCPI14_0 at toc@l
+; CHECK-P7-NEXT: lvx v3, 0, r3
+; CHECK-P7-NEXT: lvx v2, 0, r4
+; CHECK-P7-NEXT: vperm v2, v3, v3, v2
+; CHECK-P7-NEXT: blr
entry:
%cast = bitcast i32 %a to <4 x i8>
%ret = shufflevector <4 x i8> %cast, <4 x i8> undef, <16 x i32> <i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 0, i32 1, i32 2, i32 3, i32 undef, i32 undef, i32 undef, i32 undef>
@@ -397,6 +492,17 @@ define dso_local <4 x i32> @replace_undefs_in_splat(<4 x i32> %a) local_unnamed_
; CHECK-NOVSX-NEXT: lvx v4, 0, r3
; CHECK-NOVSX-NEXT: vperm v2, v4, v2, v3
; CHECK-NOVSX-NEXT: blr
+;
+; CHECK-P7-LABEL: replace_undefs_in_splat:
+; CHECK-P7: # %bb.0: # %entry
+; CHECK-P7-NEXT: addis r3, r2, .LCPI15_0 at toc@ha
+; CHECK-P7-NEXT: addis r4, r2, .LCPI15_1 at toc@ha
+; CHECK-P7-NEXT: addi r3, r3, .LCPI15_0 at toc@l
+; CHECK-P7-NEXT: lvx v3, 0, r3
+; CHECK-P7-NEXT: addi r3, r4, .LCPI15_1 at toc@l
+; CHECK-P7-NEXT: lvx v4, 0, r3
+; CHECK-P7-NEXT: vperm v2, v4, v2, v3
+; CHECK-P7-NEXT: blr
entry:
%vecins1 = shufflevector <4 x i32> %a, <4 x i32> <i32 undef, i32 566, i32 undef, i32 566>, <4 x i32> <i32 0, i32 5, i32 2, i32 7>
ret <4 x i32> %vecins1
@@ -435,6 +541,18 @@ define dso_local <16 x i8> @no_RAUW_in_combine_during_legalize(i32* nocapture re
; CHECK-NOVSX-NEXT: lvx v3, 0, r3
; CHECK-NOVSX-NEXT: vmrglb v2, v2, v3
; CHECK-NOVSX-NEXT: blr
+;
+; CHECK-P7-LABEL: no_RAUW_in_combine_during_legalize:
+; CHECK-P7: # %bb.0: # %entry
+; CHECK-P7-NEXT: sldi r4, r4, 2
+; CHECK-P7-NEXT: addi r5, r1, -16
+; CHECK-P7-NEXT: xxlxor v3, v3, v3
+; CHECK-P7-NEXT: lwzx r3, r3, r4
+; CHECK-P7-NEXT: std r3, -16(r1)
+; CHECK-P7-NEXT: lxvd2x vs0, 0, r5
+; CHECK-P7-NEXT: xxswapd v2, vs0
+; CHECK-P7-NEXT: vmrglb v2, v3, v2
+; CHECK-P7-NEXT: blr
entry:
%idx.ext = sext i32 %offset to i64
%add.ptr = getelementptr inbounds i32, i32* %ptr, i64 %idx.ext
@@ -449,8 +567,7 @@ entry:
define dso_local <4 x i32> @testSplat4Low(<8 x i8>* nocapture readonly %ptr) local_unnamed_addr #0 {
; CHECK-P8-LABEL: testSplat4Low:
; CHECK-P8: # %bb.0: # %entry
-; CHECK-P8-NEXT: ld r3, 0(r3)
-; CHECK-P8-NEXT: mtfprd f0, r3
+; CHECK-P8-NEXT: lfdx f0, 0, r3
; CHECK-P8-NEXT: xxspltw v2, vs0, 0
; CHECK-P8-NEXT: blr
;
@@ -468,6 +585,12 @@ define dso_local <4 x i32> @testSplat4Low(<8 x i8>* nocapture readonly %ptr) loc
; CHECK-NOVSX-NEXT: lvx v2, 0, r4
; CHECK-NOVSX-NEXT: vspltw v2, v2, 2
; CHECK-NOVSX-NEXT: blr
+;
+; CHECK-P7-LABEL: testSplat4Low:
+; CHECK-P7: # %bb.0: # %entry
+; CHECK-P7-NEXT: lfdx f0, 0, r3
+; CHECK-P7-NEXT: xxspltw v2, vs0, 0
+; CHECK-P7-NEXT: blr
entry:
%0 = load <8 x i8>, <8 x i8>* %ptr, align 8
%vecinit18 = shufflevector <8 x i8> %0, <8 x i8> undef, <16 x i32> <i32 4, i32 5, i32 6, i32 7, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
@@ -479,8 +602,7 @@ entry:
define dso_local <4 x i32> @testSplat4hi(<8 x i8>* nocapture readonly %ptr) local_unnamed_addr #0 {
; CHECK-P8-LABEL: testSplat4hi:
; CHECK-P8: # %bb.0: # %entry
-; CHECK-P8-NEXT: ld r3, 0(r3)
-; CHECK-P8-NEXT: mtfprd f0, r3
+; CHECK-P8-NEXT: lfdx f0, 0, r3
; CHECK-P8-NEXT: xxspltw v2, vs0, 1
; CHECK-P8-NEXT: blr
;
@@ -497,6 +619,12 @@ define dso_local <4 x i32> @testSplat4hi(<8 x i8>* nocapture readonly %ptr) loca
; CHECK-NOVSX-NEXT: lvx v2, 0, r4
; CHECK-NOVSX-NEXT: vspltw v2, v2, 3
; CHECK-NOVSX-NEXT: blr
+;
+; CHECK-P7-LABEL: testSplat4hi:
+; CHECK-P7: # %bb.0: # %entry
+; CHECK-P7-NEXT: lfdx f0, 0, r3
+; CHECK-P7-NEXT: xxspltw v2, vs0, 1
+; CHECK-P7-NEXT: blr
entry:
%0 = load <8 x i8>, <8 x i8>* %ptr, align 8
%vecinit22 = shufflevector <8 x i8> %0, <8 x i8> undef, <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 0, i32 1, i32 2, i32 3, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
@@ -527,6 +655,11 @@ define dso_local <2 x i64> @testSplat8(<8 x i8>* nocapture readonly %ptr) local_
; CHECK-NOVSX-NEXT: lvx v3, 0, r3
; CHECK-NOVSX-NEXT: vperm v2, v3, v3, v2
; CHECK-NOVSX-NEXT: blr
+;
+; CHECK-P7-LABEL: testSplat8:
+; CHECK-P7: # %bb.0: # %entry
+; CHECK-P7-NEXT: lxvdsx v2, 0, r3
+; CHECK-P7-NEXT: blr
entry:
%0 = load <8 x i8>, <8 x i8>* %ptr, align 8
%vecinit30 = shufflevector <8 x i8> %0, <8 x i8> undef, <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
diff --git a/llvm/test/CodeGen/PowerPC/load-and-splat.ll b/llvm/test/CodeGen/PowerPC/load-and-splat.ll
index 26da1fdaefef..c011e4541204 100644
--- a/llvm/test/CodeGen/PowerPC/load-and-splat.ll
+++ b/llvm/test/CodeGen/PowerPC/load-and-splat.ll
@@ -126,8 +126,7 @@ define <16 x i8> @adjusted_lxvwsx(i64* %s, i64* %t) {
;
; P8-LABEL: adjusted_lxvwsx:
; P8: # %bb.0: # %entry
-; P8-NEXT: ld r3, 0(r3)
-; P8-NEXT: mtfprd f0, r3
+; P8-NEXT: lfdx f0, 0, r3
; P8-NEXT: xxspltw v2, vs0, 0
; P8-NEXT: blr
entry:
diff --git a/llvm/test/CodeGen/PowerPC/pr47916.ll b/llvm/test/CodeGen/PowerPC/pr47916.ll
new file mode 100644
index 000000000000..f42694b59c40
--- /dev/null
+++ b/llvm/test/CodeGen/PowerPC/pr47916.ll
@@ -0,0 +1,17 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc -verify-machineinstrs -mcpu=pwr7 -mtriple=powerpc64le-unknown-unknown \
+; RUN: -ppc-asm-full-reg-names --ppc-vsr-nums-as-vr < %s | FileCheck %s
+define dso_local void @_Z1jjPiPj() local_unnamed_addr #0 {
+; CHECK-LABEL: _Z1jjPiPj:
+; CHECK: # %bb.0: # %entry
+; CHECK-NEXT: lxsdx v2, 0, r3
+; CHECK-NEXT: vmrghw v2, v2, v2
+; CHECK-NEXT: xxswapd vs0, v2
+; CHECK-NEXT: stxvd2x vs0, 0, r3
+; CHECK-NEXT: blr
+entry:
+ %wide.load42 = load <2 x i32>, <2 x i32>* undef, align 4
+ %interleaved.vec49 = shufflevector <2 x i32> %wide.load42, <2 x i32> undef, <4 x i32> <i32 0, i32 2, i32 1, i32 3>
+ store <4 x i32> %interleaved.vec49, <4 x i32>* undef, align 4
+ ret void
+}
More information about the llvm-commits
mailing list