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[RISCV] Insert a sext_inreg when type legalizing i32 shl by constant on RV64. 

Similar to what we do for add/sub/mul.

This can help remove some sext.w. There are some regressions on
some bswap tests, but I have an idea how to fix that for a follow up.

A new PACKW pattern is added to handle the new sext_inreg placement.

Differential Revision: https://reviews.llvm.org/D108663
This commit is contained in:
Craig Topper 2021-08-26 09:33:53 -07:00
parent abb956370e
commit 1b9417454e
10 changed files with 113 additions and 132 deletions
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21
llvm/lib/Target/RISCV/RISCVISelLowering.cpp
View File

@ -5060,9 +5060,26 @@ void RISCVTargetLowering::ReplaceNodeResults(SDNode *N,
case ISD::SRL:
assert(N->getValueType(0) == MVT::i32 && Subtarget.is64Bit() &&
"Unexpected custom legalisation");
if (N->getOperand(1).getOpcode() == ISD::Constant)
return;
if (N->getOperand(1).getOpcode() != ISD::Constant) {
Results.push_back(customLegalizeToWOp(N, DAG));
break;
}
// Custom legalize ISD::SHL by placing a SIGN_EXTEND_INREG after. This is
// similar to customLegalizeToWOpWithSExt, but we must zero_extend the
// shift amount.
if (N->getOpcode() == ISD::SHL) {
SDLoc DL(N);
SDValue NewOp0 =
DAG.getNode(ISD::ANY_EXTEND, DL, MVT::i64, N->getOperand(0));
SDValue NewOp1 =
DAG.getNode(ISD::ZERO_EXTEND, DL, MVT::i64, N->getOperand(1));
SDValue NewWOp = DAG.getNode(ISD::SHL, DL, MVT::i64, NewOp0, NewOp1);
SDValue NewRes = DAG.getNode(ISD::SIGN_EXTEND_INREG, DL, MVT::i64, NewWOp,
DAG.getValueType(MVT::i32));
Results.push_back(DAG.getNode(ISD::TRUNCATE, DL, MVT::i32, NewRes));
}
break;
case ISD::ROTL:
case ISD::ROTR:

3
llvm/lib/Target/RISCV/RISCVInstrInfoB.td
View File

@ -1141,6 +1141,9 @@ def : Pat<(i64 (sext_inreg (or (shl GPR:$rs2, (i64 16)),
(and GPR:$rs1, 0x000000000000FFFF)),
i32)),
(PACKW GPR:$rs1, GPR:$rs2)>;
def : Pat<(i64 (or (sext_inreg (shl GPR:$rs2, (i64 16)), i32),
(and GPR:$rs1, 0x000000000000FFFF))),
(PACKW GPR:$rs1, GPR:$rs2)>;
def : Pat<(i64 (or (and (assertsexti32 GPR:$rs2), 0xFFFFFFFFFFFF0000),
(srl (and GPR:$rs1, 0xFFFFFFFF), (i64 16)))),
(PACKUW GPR:$rs1, GPR:$rs2)>;

2
llvm/test/CodeGen/RISCV/alu32.ll
View File

@ -106,7 +106,7 @@ define i32 @slli(i32 %a) nounwind {
;
; RV64I-LABEL: slli:
; RV64I: # %bb.0:
; RV64I-NEXT: slli a0, a0, 7
; RV64I-NEXT: slliw a0, a0, 7
; RV64I-NEXT: ret
%1 = shl i32 %a, 7
ret i32 %1

2
llvm/test/CodeGen/RISCV/bswap-ctlz-cttz-ctpop.ll
View File

@ -63,7 +63,7 @@ define i32 @test_bswap_i32(i32 %a) nounwind {
; RV64I-NEXT: slli a2, a0, 8
; RV64I-NEXT: lui a3, 4080
; RV64I-NEXT: and a2, a2, a3
; RV64I-NEXT: slli a0, a0, 24
; RV64I-NEXT: slliw a0, a0, 24
; RV64I-NEXT: or a0, a0, a2
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: ret

4
llvm/test/CodeGen/RISCV/copysign-casts.ll
View File

@ -205,9 +205,9 @@ define float @fold_promote_f_h(float %a, half %b) nounwind {
; RV64I-NEXT: lui a2, 524288
; RV64I-NEXT: addiw a2, a2, -1
; RV64I-NEXT: and a0, a0, a2
; RV64I-NEXT: lui a2, 1048568
; RV64I-NEXT: lui a2, 8
; RV64I-NEXT: and a1, a1, a2
; RV64I-NEXT: slli a1, a1, 16
; RV64I-NEXT: slliw a1, a1, 16
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: ret
;

4
llvm/test/CodeGen/RISCV/mul.ll
View File

@ -117,12 +117,12 @@ define i32 @mul_pow2(i32 %a) nounwind {
;
; RV64I-LABEL: mul_pow2:
; RV64I: # %bb.0:
; RV64I-NEXT: slli a0, a0, 3
; RV64I-NEXT: slliw a0, a0, 3
; RV64I-NEXT: ret
;
; RV64IM-LABEL: mul_pow2:
; RV64IM: # %bb.0:
; RV64IM-NEXT: slli a0, a0, 3
; RV64IM-NEXT: slliw a0, a0, 3
; RV64IM-NEXT: ret
%1 = mul i32 %a, 8
ret i32 %1

6
llvm/test/CodeGen/RISCV/rv64i-exhaustive-w-insts.ll
View File

@ -1422,7 +1422,7 @@ define zeroext i32 @zext_addiw_zext(i32 zeroext %a) nounwind {
define i32 @aext_slliw_aext(i32 %a) nounwind {
; RV64I-LABEL: aext_slliw_aext:
; RV64I: # %bb.0:
; RV64I-NEXT: slli a0, a0, 1
; RV64I-NEXT: slliw a0, a0, 1
; RV64I-NEXT: ret
%1 = shl i32 %a, 1
ret i32 %1
@ -1431,7 +1431,7 @@ define i32 @aext_slliw_aext(i32 %a) nounwind {
define i32 @aext_slliw_sext(i32 signext %a) nounwind {
; RV64I-LABEL: aext_slliw_sext:
; RV64I: # %bb.0:
; RV64I-NEXT: slli a0, a0, 2
; RV64I-NEXT: slliw a0, a0, 2
; RV64I-NEXT: ret
%1 = shl i32 %a, 2
ret i32 %1
@ -1440,7 +1440,7 @@ define i32 @aext_slliw_sext(i32 signext %a) nounwind {
define i32 @aext_slliw_zext(i32 zeroext %a) nounwind {
; RV64I-LABEL: aext_slliw_zext:
; RV64I: # %bb.0:
; RV64I-NEXT: slli a0, a0, 3
; RV64I-NEXT: slliw a0, a0, 3
; RV64I-NEXT: ret
%1 = shl i32 %a, 3
ret i32 %1

18
llvm/test/CodeGen/RISCV/rv64zbb-zbp.ll
View File

@ -412,9 +412,8 @@ define signext i32 @rori_i32_fshl(i32 signext %a) nounwind {
; RV64I-LABEL: rori_i32_fshl:
; RV64I: # %bb.0:
; RV64I-NEXT: srliw a1, a0, 1
; RV64I-NEXT: slli a0, a0, 31
; RV64I-NEXT: slliw a0, a0, 31
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: sext.w a0, a0
; RV64I-NEXT: ret
;
; RV64B-LABEL: rori_i32_fshl:
@ -470,10 +469,9 @@ define void @rori_i32_fshl_nosext(i32 signext %a, i32* %x) nounwind {
define signext i32 @rori_i32_fshr(i32 signext %a) nounwind {
; RV64I-LABEL: rori_i32_fshr:
; RV64I: # %bb.0:
; RV64I-NEXT: slli a1, a0, 1
; RV64I-NEXT: slliw a1, a0, 1
; RV64I-NEXT: srliw a0, a0, 31
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: sext.w a0, a0
; RV64I-NEXT: ret
;
; RV64B-LABEL: rori_i32_fshr:
@ -532,34 +530,30 @@ define void @rori_i32_fshr_nosext(i32 signext %a, i32* %x) nounwind {
define signext i32 @not_rori_i32(i32 signext %x, i32 signext %y) nounwind {
; RV64I-LABEL: not_rori_i32:
; RV64I: # %bb.0:
; RV64I-NEXT: slli a0, a0, 31
; RV64I-NEXT: slliw a0, a0, 31
; RV64I-NEXT: srliw a1, a1, 1
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: sext.w a0, a0
; RV64I-NEXT: ret
;
; RV64B-LABEL: not_rori_i32:
; RV64B: # %bb.0:
; RV64B-NEXT: slli a0, a0, 31
; RV64B-NEXT: slliw a0, a0, 31
; RV64B-NEXT: srliw a1, a1, 1
; RV64B-NEXT: or a0, a0, a1
; RV64B-NEXT: sext.w a0, a0
; RV64B-NEXT: ret
;
; RV64ZBB-LABEL: not_rori_i32:
; RV64ZBB: # %bb.0:
; RV64ZBB-NEXT: slli a0, a0, 31
; RV64ZBB-NEXT: slliw a0, a0, 31
; RV64ZBB-NEXT: srliw a1, a1, 1
; RV64ZBB-NEXT: or a0, a0, a1
; RV64ZBB-NEXT: sext.w a0, a0
; RV64ZBB-NEXT: ret
;
; RV64ZBP-LABEL: not_rori_i32:
; RV64ZBP: # %bb.0:
; RV64ZBP-NEXT: slli a0, a0, 31
; RV64ZBP-NEXT: slliw a0, a0, 31
; RV64ZBP-NEXT: srliw a1, a1, 1
; RV64ZBP-NEXT: or a0, a0, a1
; RV64ZBP-NEXT: sext.w a0, a0
; RV64ZBP-NEXT: ret
%a = shl i32 %x, 31
%b = lshr i32 %y, 1

3
llvm/test/CodeGen/RISCV/rv64zbb.ll
View File

@ -1515,10 +1515,9 @@ define signext i32 @bswap_i32(i32 signext %a) nounwind {
; RV64I-NEXT: slli a2, a0, 8
; RV64I-NEXT: lui a3, 4080
; RV64I-NEXT: and a2, a2, a3
; RV64I-NEXT: slli a0, a0, 24
; RV64I-NEXT: slliw a0, a0, 24
; RV64I-NEXT: or a0, a0, a2
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: sext.w a0, a0
; RV64I-NEXT: ret
;
; RV64B-LABEL: bswap_i32:

180
llvm/test/CodeGen/RISCV/rv64zbp.ll
View File

@ -9,7 +9,7 @@
define signext i32 @gorc1_i32(i32 signext %a) nounwind {
; RV64I-LABEL: gorc1_i32:
; RV64I: # %bb.0:
; RV64I-NEXT: slli a1, a0, 1
; RV64I-NEXT: slliw a1, a0, 1
; RV64I-NEXT: lui a2, 699051
; RV64I-NEXT: addiw a2, a2, -1366
; RV64I-NEXT: and a1, a1, a2
@ -19,7 +19,6 @@ define signext i32 @gorc1_i32(i32 signext %a) nounwind {
; RV64I-NEXT: and a2, a2, a3
; RV64I-NEXT: or a0, a2, a0
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: sext.w a0, a0
; RV64I-NEXT: ret
;
; RV64B-LABEL: gorc1_i32:
@ -88,7 +87,7 @@ define i64 @gorc1_i64(i64 %a) nounwind {
define signext i32 @gorc2_i32(i32 signext %a) nounwind {
; RV64I-LABEL: gorc2_i32:
; RV64I: # %bb.0:
; RV64I-NEXT: slli a1, a0, 2
; RV64I-NEXT: slliw a1, a0, 2
; RV64I-NEXT: lui a2, 838861
; RV64I-NEXT: addiw a2, a2, -820
; RV64I-NEXT: and a1, a1, a2
@ -98,7 +97,6 @@ define signext i32 @gorc2_i32(i32 signext %a) nounwind {
; RV64I-NEXT: and a2, a2, a3
; RV64I-NEXT: or a0, a2, a0
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: sext.w a0, a0
; RV64I-NEXT: ret
;
; RV64B-LABEL: gorc2_i32:
@ -167,7 +165,7 @@ define i64 @gorc2_i64(i64 %a) nounwind {
define signext i32 @gorc3_i32(i32 signext %a) nounwind {
; RV64I-LABEL: gorc3_i32:
; RV64I: # %bb.0:
; RV64I-NEXT: slli a1, a0, 1
; RV64I-NEXT: slliw a1, a0, 1
; RV64I-NEXT: lui a2, 699051
; RV64I-NEXT: addiw a2, a2, -1366
; RV64I-NEXT: and a1, a1, a2
@ -177,7 +175,7 @@ define signext i32 @gorc3_i32(i32 signext %a) nounwind {
; RV64I-NEXT: and a2, a2, a3
; RV64I-NEXT: or a0, a2, a0
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: slli a1, a0, 2
; RV64I-NEXT: slliw a1, a0, 2
; RV64I-NEXT: lui a2, 838861
; RV64I-NEXT: addiw a2, a2, -820
; RV64I-NEXT: and a1, a1, a2
@ -187,7 +185,6 @@ define signext i32 @gorc3_i32(i32 signext %a) nounwind {
; RV64I-NEXT: and a2, a2, a3
; RV64I-NEXT: or a0, a2, a0
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: sext.w a0, a0
; RV64I-NEXT: ret
;
; RV64B-LABEL: gorc3_i32:
@ -290,7 +287,7 @@ define i64 @gorc3_i64(i64 %a) nounwind {
define signext i32 @gorc4_i32(i32 signext %a) nounwind {
; RV64I-LABEL: gorc4_i32:
; RV64I: # %bb.0:
; RV64I-NEXT: slli a1, a0, 4
; RV64I-NEXT: slliw a1, a0, 4
; RV64I-NEXT: lui a2, 986895
; RV64I-NEXT: addiw a2, a2, 240
; RV64I-NEXT: and a1, a1, a2
@ -300,7 +297,6 @@ define signext i32 @gorc4_i32(i32 signext %a) nounwind {
; RV64I-NEXT: and a2, a2, a3
; RV64I-NEXT: or a0, a2, a0
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: sext.w a0, a0
; RV64I-NEXT: ret
;
; RV64B-LABEL: gorc4_i32:
@ -369,7 +365,7 @@ define i64 @gorc4_i64(i64 %a) nounwind {
define signext i32 @gorc5_i32(i32 signext %a) nounwind {
; RV64I-LABEL: gorc5_i32:
; RV64I: # %bb.0:
; RV64I-NEXT: slli a1, a0, 1
; RV64I-NEXT: slliw a1, a0, 1
; RV64I-NEXT: lui a2, 699051
; RV64I-NEXT: addiw a2, a2, -1366
; RV64I-NEXT: and a1, a1, a2
@ -379,7 +375,7 @@ define signext i32 @gorc5_i32(i32 signext %a) nounwind {
; RV64I-NEXT: and a2, a2, a3
; RV64I-NEXT: or a0, a2, a0
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: slli a1, a0, 4
; RV64I-NEXT: slliw a1, a0, 4
; RV64I-NEXT: lui a2, 986895
; RV64I-NEXT: addiw a2, a2, 240
; RV64I-NEXT: and a1, a1, a2
@ -389,7 +385,6 @@ define signext i32 @gorc5_i32(i32 signext %a) nounwind {
; RV64I-NEXT: and a2, a2, a3
; RV64I-NEXT: or a0, a2, a0
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: sext.w a0, a0
; RV64I-NEXT: ret
;
; RV64B-LABEL: gorc5_i32:
@ -492,7 +487,7 @@ define i64 @gorc5_i64(i64 %a) nounwind {
define signext i32 @gorc6_i32(i32 signext %a) nounwind {
; RV64I-LABEL: gorc6_i32:
; RV64I: # %bb.0:
; RV64I-NEXT: slli a1, a0, 2
; RV64I-NEXT: slliw a1, a0, 2
; RV64I-NEXT: lui a2, 838861
; RV64I-NEXT: addiw a2, a2, -820
; RV64I-NEXT: and a1, a1, a2
@ -502,7 +497,7 @@ define signext i32 @gorc6_i32(i32 signext %a) nounwind {
; RV64I-NEXT: and a2, a2, a3
; RV64I-NEXT: or a0, a2, a0
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: slli a1, a0, 4
; RV64I-NEXT: slliw a1, a0, 4
; RV64I-NEXT: lui a2, 986895
; RV64I-NEXT: addiw a2, a2, 240
; RV64I-NEXT: and a1, a1, a2
@ -512,7 +507,6 @@ define signext i32 @gorc6_i32(i32 signext %a) nounwind {
; RV64I-NEXT: and a2, a2, a3
; RV64I-NEXT: or a0, a2, a0
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: sext.w a0, a0
; RV64I-NEXT: ret
;
; RV64B-LABEL: gorc6_i32:
@ -615,7 +609,7 @@ define i64 @gorc6_i64(i64 %a) nounwind {
define signext i32 @gorc7_i32(i32 signext %a) nounwind {
; RV64I-LABEL: gorc7_i32:
; RV64I: # %bb.0:
; RV64I-NEXT: slli a1, a0, 1
; RV64I-NEXT: slliw a1, a0, 1
; RV64I-NEXT: lui a2, 699051
; RV64I-NEXT: addiw a2, a2, -1366
; RV64I-NEXT: and a1, a1, a2
@ -625,7 +619,7 @@ define signext i32 @gorc7_i32(i32 signext %a) nounwind {
; RV64I-NEXT: and a2, a2, a3
; RV64I-NEXT: or a0, a2, a0
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: slli a1, a0, 2
; RV64I-NEXT: slliw a1, a0, 2
; RV64I-NEXT: lui a2, 838861
; RV64I-NEXT: addiw a2, a2, -820
; RV64I-NEXT: and a1, a1, a2
@ -782,7 +776,7 @@ define i64 @gorc7_i64(i64 %a) nounwind {
define signext i32 @gorc8_i32(i32 signext %a) nounwind {
; RV64I-LABEL: gorc8_i32:
; RV64I: # %bb.0:
; RV64I-NEXT: slli a1, a0, 8
; RV64I-NEXT: slliw a1, a0, 8
; RV64I-NEXT: lui a2, 1044496
; RV64I-NEXT: addiw a2, a2, -256
; RV64I-NEXT: and a1, a1, a2
@ -792,7 +786,6 @@ define signext i32 @gorc8_i32(i32 signext %a) nounwind {
; RV64I-NEXT: and a2, a2, a3
; RV64I-NEXT: or a0, a2, a0
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: sext.w a0, a0
; RV64I-NEXT: ret
;
; RV64B-LABEL: gorc8_i32:
@ -857,11 +850,10 @@ define i64 @gorc8_i64(i64 %a) nounwind {
define signext i32 @gorc16_i32(i32 signext %a) nounwind {
; RV64I-LABEL: gorc16_i32:
; RV64I: # %bb.0:
; RV64I-NEXT: slli a1, a0, 16
; RV64I-NEXT: slliw a1, a0, 16
; RV64I-NEXT: srliw a2, a0, 16
; RV64I-NEXT: or a0, a2, a0
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: sext.w a0, a0
; RV64I-NEXT: ret
;
; RV64B-LABEL: gorc16_i32:
@ -884,7 +876,7 @@ define i32 @gorc16_rotl_i32(i32 %a) nounwind {
; RV64I-LABEL: gorc16_rotl_i32:
; RV64I: # %bb.0:
; RV64I-NEXT: srliw a1, a0, 16
; RV64I-NEXT: slli a2, a0, 16
; RV64I-NEXT: slliw a2, a0, 16
; RV64I-NEXT: or a1, a2, a1
; RV64I-NEXT: or a0, a1, a0
; RV64I-NEXT: ret
@ -906,7 +898,7 @@ define i32 @gorc16_rotl_i32(i32 %a) nounwind {
define i32 @gorc16_rotr_i32(i32 %a) nounwind {
; RV64I-LABEL: gorc16_rotr_i32:
; RV64I: # %bb.0:
; RV64I-NEXT: slli a1, a0, 16
; RV64I-NEXT: slliw a1, a0, 16
; RV64I-NEXT: srliw a2, a0, 16
; RV64I-NEXT: or a1, a2, a1
; RV64I-NEXT: or a0, a1, a0
@ -991,7 +983,7 @@ define i64 @gorc32(i64 %a) nounwind {
define signext i32 @gorc2b_i32(i32 signext %a) nounwind {
; RV64I-LABEL: gorc2b_i32:
; RV64I: # %bb.0:
; RV64I-NEXT: slli a1, a0, 2
; RV64I-NEXT: slliw a1, a0, 2
; RV64I-NEXT: lui a2, 838861
; RV64I-NEXT: addiw a2, a2, -820
; RV64I-NEXT: and a1, a1, a2
@ -1001,13 +993,12 @@ define signext i32 @gorc2b_i32(i32 signext %a) nounwind {
; RV64I-NEXT: and a3, a3, a4
; RV64I-NEXT: or a0, a3, a0
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: slli a1, a0, 2
; RV64I-NEXT: slliw a1, a0, 2
; RV64I-NEXT: and a1, a1, a2
; RV64I-NEXT: srli a2, a0, 2
; RV64I-NEXT: and a2, a2, a4
; RV64I-NEXT: or a0, a2, a0
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: sext.w a0, a0
; RV64I-NEXT: ret
;
; RV64B-LABEL: gorc2b_i32:
@ -1096,7 +1087,7 @@ define i64 @gorc2b_i64(i64 %a) nounwind {
define signext i32 @gorc3b_i32(i32 signext %a) nounwind {
; RV64I-LABEL: gorc3b_i32:
; RV64I: # %bb.0:
; RV64I-NEXT: slli a1, a0, 1
; RV64I-NEXT: slliw a1, a0, 1
; RV64I-NEXT: lui a2, 699051
; RV64I-NEXT: addiw a2, a2, -1366
; RV64I-NEXT: and a1, a1, a2
@ -1106,7 +1097,7 @@ define signext i32 @gorc3b_i32(i32 signext %a) nounwind {
; RV64I-NEXT: and a3, a3, a4
; RV64I-NEXT: or a0, a3, a0
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: slli a1, a0, 2
; RV64I-NEXT: slliw a1, a0, 2
; RV64I-NEXT: lui a3, 838861
; RV64I-NEXT: addiw a3, a3, -820
; RV64I-NEXT: and a1, a1, a3
@ -1290,7 +1281,7 @@ define i64 @gorc32_rotr(i64 %a) nounwind {
define signext i32 @grev1_i32(i32 signext %a) nounwind {
; RV64I-LABEL: grev1_i32:
; RV64I: # %bb.0:
; RV64I-NEXT: slli a1, a0, 1
; RV64I-NEXT: slliw a1, a0, 1
; RV64I-NEXT: lui a2, 699051
; RV64I-NEXT: addiw a2, a2, -1366
; RV64I-NEXT: and a1, a1, a2
@ -1299,7 +1290,6 @@ define signext i32 @grev1_i32(i32 signext %a) nounwind {
; RV64I-NEXT: addiw a2, a2, 1365
; RV64I-NEXT: and a0, a0, a2
; RV64I-NEXT: or a0, a1, a0
; RV64I-NEXT: sext.w a0, a0
; RV64I-NEXT: ret
;
; RV64B-LABEL: grev1_i32:
@ -1365,7 +1355,7 @@ define i64 @grev1_i64(i64 %a) nounwind {
define signext i32 @grev2_i32(i32 signext %a) nounwind {
; RV64I-LABEL: grev2_i32:
; RV64I: # %bb.0:
; RV64I-NEXT: slli a1, a0, 2
; RV64I-NEXT: slliw a1, a0, 2
; RV64I-NEXT: lui a2, 838861
; RV64I-NEXT: addiw a2, a2, -820
; RV64I-NEXT: and a1, a1, a2
@ -1374,7 +1364,6 @@ define signext i32 @grev2_i32(i32 signext %a) nounwind {
; RV64I-NEXT: addiw a2, a2, 819
; RV64I-NEXT: and a0, a0, a2
; RV64I-NEXT: or a0, a1, a0
; RV64I-NEXT: sext.w a0, a0
; RV64I-NEXT: ret
;
; RV64B-LABEL: grev2_i32:
@ -1440,7 +1429,7 @@ define i64 @grev2_i64(i64 %a) nounwind {
define signext i32 @grev3_i32(i32 signext %a) nounwind {
; RV64I-LABEL: grev3_i32:
; RV64I: # %bb.0:
; RV64I-NEXT: slli a1, a0, 1
; RV64I-NEXT: slliw a1, a0, 1
; RV64I-NEXT: lui a2, 699051
; RV64I-NEXT: addiw a2, a2, -1366
; RV64I-NEXT: and a1, a1, a2
@ -1449,7 +1438,7 @@ define signext i32 @grev3_i32(i32 signext %a) nounwind {
; RV64I-NEXT: addiw a2, a2, 1365
; RV64I-NEXT: and a0, a0, a2
; RV64I-NEXT: or a0, a1, a0
; RV64I-NEXT: slli a1, a0, 2
; RV64I-NEXT: slliw a1, a0, 2
; RV64I-NEXT: lui a2, 838861
; RV64I-NEXT: addiw a2, a2, -820
; RV64I-NEXT: and a1, a1, a2
@ -1458,7 +1447,6 @@ define signext i32 @grev3_i32(i32 signext %a) nounwind {
; RV64I-NEXT: addiw a2, a2, 819
; RV64I-NEXT: and a0, a0, a2
; RV64I-NEXT: or a0, a1, a0
; RV64I-NEXT: sext.w a0, a0
; RV64I-NEXT: ret
;
; RV64B-LABEL: grev3_i32:
@ -1555,7 +1543,7 @@ define i64 @grev3_i64(i64 %a) nounwind {
define signext i32 @grev4_i32(i32 signext %a) nounwind {
; RV64I-LABEL: grev4_i32:
; RV64I: # %bb.0:
; RV64I-NEXT: slli a1, a0, 4
; RV64I-NEXT: slliw a1, a0, 4
; RV64I-NEXT: lui a2, 986895
; RV64I-NEXT: addiw a2, a2, 240
; RV64I-NEXT: and a1, a1, a2
@ -1564,7 +1552,6 @@ define signext i32 @grev4_i32(i32 signext %a) nounwind {
; RV64I-NEXT: addiw a2, a2, -241
; RV64I-NEXT: and a0, a0, a2
; RV64I-NEXT: or a0, a1, a0
; RV64I-NEXT: sext.w a0, a0
; RV64I-NEXT: ret
;
; RV64B-LABEL: grev4_i32:
@ -1630,7 +1617,7 @@ define i64 @grev4_i64(i64 %a) nounwind {
define signext i32 @grev5_i32(i32 signext %a) nounwind {
; RV64I-LABEL: grev5_i32:
; RV64I: # %bb.0:
; RV64I-NEXT: slli a1, a0, 1
; RV64I-NEXT: slliw a1, a0, 1
; RV64I-NEXT: lui a2, 699051
; RV64I-NEXT: addiw a2, a2, -1366
; RV64I-NEXT: and a1, a1, a2
@ -1639,7 +1626,7 @@ define signext i32 @grev5_i32(i32 signext %a) nounwind {
; RV64I-NEXT: addiw a2, a2, 1365
; RV64I-NEXT: and a0, a0, a2
; RV64I-NEXT: or a0, a1, a0
; RV64I-NEXT: slli a1, a0, 4
; RV64I-NEXT: slliw a1, a0, 4
; RV64I-NEXT: lui a2, 986895
; RV64I-NEXT: addiw a2, a2, 240
; RV64I-NEXT: and a1, a1, a2
@ -1648,7 +1635,6 @@ define signext i32 @grev5_i32(i32 signext %a) nounwind {
; RV64I-NEXT: addiw a2, a2, -241
; RV64I-NEXT: and a0, a0, a2
; RV64I-NEXT: or a0, a1, a0
; RV64I-NEXT: sext.w a0, a0
; RV64I-NEXT: ret
;
; RV64B-LABEL: grev5_i32:
@ -1746,7 +1732,7 @@ define i64 @grev5_i64(i64 %a) nounwind {
define signext i32 @grev6_i32(i32 signext %a) nounwind {
; RV64I-LABEL: grev6_i32:
; RV64I: # %bb.0:
; RV64I-NEXT: slli a1, a0, 2
; RV64I-NEXT: slliw a1, a0, 2
; RV64I-NEXT: lui a2, 838861
; RV64I-NEXT: addiw a2, a2, -820
; RV64I-NEXT: and a1, a1, a2
@ -1755,7 +1741,7 @@ define signext i32 @grev6_i32(i32 signext %a) nounwind {
; RV64I-NEXT: addiw a2, a2, 819
; RV64I-NEXT: and a0, a0, a2
; RV64I-NEXT: or a0, a1, a0
; RV64I-NEXT: slli a1, a0, 4
; RV64I-NEXT: slliw a1, a0, 4
; RV64I-NEXT: lui a2, 986895
; RV64I-NEXT: addiw a2, a2, 240
; RV64I-NEXT: and a1, a1, a2
@ -1764,7 +1750,6 @@ define signext i32 @grev6_i32(i32 signext %a) nounwind {
; RV64I-NEXT: addiw a2, a2, -241
; RV64I-NEXT: and a0, a0, a2
; RV64I-NEXT: or a0, a1, a0
; RV64I-NEXT: sext.w a0, a0
; RV64I-NEXT: ret
;
; RV64B-LABEL: grev6_i32:
@ -1861,7 +1846,7 @@ define i64 @grev6_i64(i64 %a) nounwind {
define signext i32 @grev7_i32(i32 signext %a) nounwind {
; RV64I-LABEL: grev7_i32:
; RV64I: # %bb.0:
; RV64I-NEXT: slli a1, a0, 1
; RV64I-NEXT: slliw a1, a0, 1
; RV64I-NEXT: lui a2, 699051
; RV64I-NEXT: addiw a2, a2, -1366
; RV64I-NEXT: and a1, a1, a2
@ -1870,7 +1855,7 @@ define signext i32 @grev7_i32(i32 signext %a) nounwind {
; RV64I-NEXT: addiw a2, a2, 1365
; RV64I-NEXT: and a0, a0, a2
; RV64I-NEXT: or a0, a1, a0
; RV64I-NEXT: slli a1, a0, 2
; RV64I-NEXT: slliw a1, a0, 2
; RV64I-NEXT: lui a2, 838861
; RV64I-NEXT: addiw a2, a2, -820
; RV64I-NEXT: and a1, a1, a2
@ -1879,7 +1864,7 @@ define signext i32 @grev7_i32(i32 signext %a) nounwind {
; RV64I-NEXT: addiw a2, a2, 819
; RV64I-NEXT: and a0, a0, a2
; RV64I-NEXT: or a0, a1, a0
; RV64I-NEXT: slli a1, a0, 4
; RV64I-NEXT: slliw a1, a0, 4
; RV64I-NEXT: lui a2, 986895
; RV64I-NEXT: addiw a2, a2, 240
; RV64I-NEXT: and a1, a1, a2
@ -1888,7 +1873,6 @@ define signext i32 @grev7_i32(i32 signext %a) nounwind {
; RV64I-NEXT: addiw a2, a2, -241
; RV64I-NEXT: and a0, a0, a2
; RV64I-NEXT: or a0, a1, a0
; RV64I-NEXT: sext.w a0, a0
; RV64I-NEXT: ret
;
; RV64B-LABEL: grev7_i32:
@ -2016,7 +2000,7 @@ define i64 @grev7_i64(i64 %a) nounwind {
define signext i32 @grev8_i32(i32 signext %a) nounwind {
; RV64I-LABEL: grev8_i32:
; RV64I: # %bb.0:
; RV64I-NEXT: slli a1, a0, 8
; RV64I-NEXT: slliw a1, a0, 8
; RV64I-NEXT: lui a2, 1044496
; RV64I-NEXT: addiw a2, a2, -256
; RV64I-NEXT: and a1, a1, a2
@ -2025,7 +2009,6 @@ define signext i32 @grev8_i32(i32 signext %a) nounwind {
; RV64I-NEXT: addiw a2, a2, 255
; RV64I-NEXT: and a0, a0, a2
; RV64I-NEXT: or a0, a1, a0
; RV64I-NEXT: sext.w a0, a0
; RV64I-NEXT: ret
;
; RV64B-LABEL: grev8_i32:
@ -2087,10 +2070,9 @@ define i64 @grev8_i64(i64 %a) nounwind {
define signext i32 @grev16_i32(i32 signext %a) nounwind {
; RV64I-LABEL: grev16_i32:
; RV64I: # %bb.0:
; RV64I-NEXT: slli a1, a0, 16
; RV64I-NEXT: slliw a1, a0, 16
; RV64I-NEXT: srliw a0, a0, 16
; RV64I-NEXT: or a0, a1, a0
; RV64I-NEXT: sext.w a0, a0
; RV64I-NEXT: ret
;
; RV64B-LABEL: grev16_i32:
@ -2115,9 +2097,8 @@ define signext i32 @grev16_i32_fshl(i32 signext %a) nounwind {
; RV64I-LABEL: grev16_i32_fshl:
; RV64I: # %bb.0:
; RV64I-NEXT: srliw a1, a0, 16
; RV64I-NEXT: slli a0, a0, 16
; RV64I-NEXT: slliw a0, a0, 16
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: sext.w a0, a0
; RV64I-NEXT: ret
;
; RV64B-LABEL: grev16_i32_fshl:
@ -2136,10 +2117,9 @@ define signext i32 @grev16_i32_fshl(i32 signext %a) nounwind {
define signext i32 @grev16_i32_fshr(i32 signext %a) nounwind {
; RV64I-LABEL: grev16_i32_fshr:
; RV64I: # %bb.0:
; RV64I-NEXT: slli a1, a0, 16
; RV64I-NEXT: slliw a1, a0, 16
; RV64I-NEXT: srliw a0, a0, 16
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: sext.w a0, a0
; RV64I-NEXT: ret
;
; RV64B-LABEL: grev16_i32_fshr:
@ -2215,7 +2195,7 @@ define i64 @grev32(i64 %a) nounwind {
define signext i32 @grev3b_i32(i32 signext %a) nounwind {
; RV64I-LABEL: grev3b_i32:
; RV64I: # %bb.0:
; RV64I-NEXT: slli a1, a0, 2
; RV64I-NEXT: slliw a1, a0, 2
; RV64I-NEXT: lui a2, 838861
; RV64I-NEXT: addiw a2, a2, -820
; RV64I-NEXT: and a1, a1, a2
@ -2224,7 +2204,7 @@ define signext i32 @grev3b_i32(i32 signext %a) nounwind {
; RV64I-NEXT: addiw a2, a2, 819
; RV64I-NEXT: and a0, a0, a2
; RV64I-NEXT: or a0, a1, a0
; RV64I-NEXT: slli a1, a0, 1
; RV64I-NEXT: slliw a1, a0, 1
; RV64I-NEXT: lui a2, 699051
; RV64I-NEXT: addiw a2, a2, -1366
; RV64I-NEXT: and a1, a1, a2
@ -2233,7 +2213,6 @@ define signext i32 @grev3b_i32(i32 signext %a) nounwind {
; RV64I-NEXT: addiw a2, a2, 1365
; RV64I-NEXT: and a0, a0, a2
; RV64I-NEXT: or a0, a1, a0
; RV64I-NEXT: sext.w a0, a0
; RV64I-NEXT: ret
;
; RV64B-LABEL: grev3b_i32:
@ -2331,7 +2310,7 @@ define i64 @grev3b_i64(i64 %a) nounwind {
define signext i32 @grev2b_i32(i32 signext %a) nounwind {
; RV64I-LABEL: grev2b_i32:
; RV64I: # %bb.0:
; RV64I-NEXT: slli a1, a0, 1
; RV64I-NEXT: slliw a1, a0, 1
; RV64I-NEXT: lui a2, 699051
; RV64I-NEXT: addiw a2, a2, -1366
; RV64I-NEXT: and a1, a1, a2
@ -2340,7 +2319,7 @@ define signext i32 @grev2b_i32(i32 signext %a) nounwind {
; RV64I-NEXT: addiw a3, a3, 1365
; RV64I-NEXT: and a0, a0, a3
; RV64I-NEXT: or a0, a1, a0
; RV64I-NEXT: slli a1, a0, 2
; RV64I-NEXT: slliw a1, a0, 2
; RV64I-NEXT: lui a4, 838861
; RV64I-NEXT: addiw a4, a4, -820
; RV64I-NEXT: and a1, a1, a4
@ -2349,12 +2328,11 @@ define signext i32 @grev2b_i32(i32 signext %a) nounwind {
; RV64I-NEXT: addiw a4, a4, 819
; RV64I-NEXT: and a0, a0, a4
; RV64I-NEXT: or a0, a1, a0
; RV64I-NEXT: slli a1, a0, 1
; RV64I-NEXT: slliw a1, a0, 1
; RV64I-NEXT: and a1, a1, a2
; RV64I-NEXT: srli a0, a0, 1
; RV64I-NEXT: and a0, a0, a3
; RV64I-NEXT: or a0, a1, a0
; RV64I-NEXT: sext.w a0, a0
; RV64I-NEXT: ret
;
; RV64B-LABEL: grev2b_i32:
@ -2468,7 +2446,7 @@ define i64 @grev2b_i64(i64 %a) nounwind {
define signext i32 @grev0_i32(i32 signext %a) nounwind {
; RV64I-LABEL: grev0_i32:
; RV64I: # %bb.0:
; RV64I-NEXT: slli a1, a0, 1
; RV64I-NEXT: slliw a1, a0, 1
; RV64I-NEXT: lui a2, 699051
; RV64I-NEXT: addiw a2, a2, -1366
; RV64I-NEXT: and a1, a1, a2
@ -2477,7 +2455,7 @@ define signext i32 @grev0_i32(i32 signext %a) nounwind {
; RV64I-NEXT: addiw a3, a3, 1365
; RV64I-NEXT: and a0, a0, a3
; RV64I-NEXT: or a0, a1, a0
; RV64I-NEXT: slli a1, a0, 2
; RV64I-NEXT: slliw a1, a0, 2
; RV64I-NEXT: lui a4, 838861
; RV64I-NEXT: addiw a4, a4, -820
; RV64I-NEXT: and a1, a1, a4
@ -2486,17 +2464,16 @@ define signext i32 @grev0_i32(i32 signext %a) nounwind {
; RV64I-NEXT: addiw a5, a5, 819
; RV64I-NEXT: and a0, a0, a5
; RV64I-NEXT: or a0, a1, a0
; RV64I-NEXT: slli a1, a0, 1
; RV64I-NEXT: slliw a1, a0, 1
; RV64I-NEXT: and a1, a1, a2
; RV64I-NEXT: srli a0, a0, 1
; RV64I-NEXT: and a0, a0, a3
; RV64I-NEXT: or a0, a1, a0
; RV64I-NEXT: slli a1, a0, 2
; RV64I-NEXT: slliw a1, a0, 2
; RV64I-NEXT: and a1, a1, a4
; RV64I-NEXT: srli a0, a0, 2
; RV64I-NEXT: and a0, a0, a5
; RV64I-NEXT: or a0, a1, a0
; RV64I-NEXT: sext.w a0, a0
; RV64I-NEXT: ret
;
; RV64B-LABEL: grev0_i32:
@ -2702,10 +2679,9 @@ define signext i32 @bswap_i32(i32 signext %a) nounwind {
; RV64I-NEXT: slli a2, a0, 8
; RV64I-NEXT: lui a3, 4080
; RV64I-NEXT: and a2, a2, a3
; RV64I-NEXT: slli a0, a0, 24
; RV64I-NEXT: slliw a0, a0, 24
; RV64I-NEXT: or a0, a0, a2
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: sext.w a0, a0
; RV64I-NEXT: ret
;
; RV64B-LABEL: bswap_i32:
@ -2897,7 +2873,7 @@ define signext i32 @bitreverse_i32(i32 signext %a) nounwind {
; RV64I-NEXT: slli a2, a0, 8
; RV64I-NEXT: lui a3, 4080
; RV64I-NEXT: and a2, a2, a3
; RV64I-NEXT: slli a0, a0, 24
; RV64I-NEXT: slliw a0, a0, 24
; RV64I-NEXT: or a0, a0, a2
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: srli a1, a0, 4
@ -2905,23 +2881,22 @@ define signext i32 @bitreverse_i32(i32 signext %a) nounwind {
; RV64I-NEXT: addiw a2, a2, -241
; RV64I-NEXT: and a1, a1, a2
; RV64I-NEXT: and a0, a0, a2
; RV64I-NEXT: slli a0, a0, 4
; RV64I-NEXT: slliw a0, a0, 4
; RV64I-NEXT: or a0, a1, a0
; RV64I-NEXT: srli a1, a0, 2
; RV64I-NEXT: lui a2, 209715
; RV64I-NEXT: addiw a2, a2, 819
; RV64I-NEXT: and a1, a1, a2
; RV64I-NEXT: and a0, a0, a2
; RV64I-NEXT: slli a0, a0, 2
; RV64I-NEXT: slliw a0, a0, 2
; RV64I-NEXT: or a0, a1, a0
; RV64I-NEXT: srli a1, a0, 1
; RV64I-NEXT: lui a2, 349525
; RV64I-NEXT: addiw a2, a2, 1365
; RV64I-NEXT: and a1, a1, a2
; RV64I-NEXT: and a0, a0, a2
; RV64I-NEXT: slli a0, a0, 1
; RV64I-NEXT: slliw a0, a0, 1
; RV64I-NEXT: or a0, a1, a0
; RV64I-NEXT: sext.w a0, a0
; RV64I-NEXT: ret
;
; RV64B-LABEL: bitreverse_i32:
@ -2950,7 +2925,7 @@ define void @bitreverse_i32_nosext(i32 signext %a, i32* %x) nounwind {
; RV64I-NEXT: slli a3, a0, 8
; RV64I-NEXT: lui a4, 4080
; RV64I-NEXT: and a3, a3, a4
; RV64I-NEXT: slli a0, a0, 24
; RV64I-NEXT: slliw a0, a0, 24
; RV64I-NEXT: or a0, a0, a3
; RV64I-NEXT: or a0, a0, a2
; RV64I-NEXT: srli a2, a0, 4
@ -2958,14 +2933,14 @@ define void @bitreverse_i32_nosext(i32 signext %a, i32* %x) nounwind {
; RV64I-NEXT: addiw a3, a3, -241
; RV64I-NEXT: and a2, a2, a3
; RV64I-NEXT: and a0, a0, a3
; RV64I-NEXT: slli a0, a0, 4
; RV64I-NEXT: slliw a0, a0, 4
; RV64I-NEXT: or a0, a2, a0
; RV64I-NEXT: srli a2, a0, 2
; RV64I-NEXT: lui a3, 209715
; RV64I-NEXT: addiw a3, a3, 819
; RV64I-NEXT: and a2, a2, a3
; RV64I-NEXT: and a0, a0, a3
; RV64I-NEXT: slli a0, a0, 2
; RV64I-NEXT: slliw a0, a0, 2
; RV64I-NEXT: or a0, a2, a0
; RV64I-NEXT: srli a2, a0, 1
; RV64I-NEXT: lui a3, 349525
@ -3084,21 +3059,18 @@ define i64 @bitreverse_i64(i64 %a) nounwind {
define i32 @bswap_rotr_i32(i32 %a) {
; RV64I-LABEL: bswap_rotr_i32:
; RV64I: # %bb.0:
; RV64I-NEXT: srliw a1, a0, 8
; RV64I-NEXT: lui a2, 16
; RV64I-NEXT: addiw a2, a2, -256
; RV64I-NEXT: slli a1, a0, 8
; RV64I-NEXT: lui a2, 4080
; RV64I-NEXT: and a1, a1, a2
; RV64I-NEXT: slli a2, a0, 24
; RV64I-NEXT: or a1, a2, a1
; RV64I-NEXT: srliw a2, a0, 24
; RV64I-NEXT: or a1, a1, a2
; RV64I-NEXT: slli a2, a0, 8
; RV64I-NEXT: lui a3, 4080
; RV64I-NEXT: and a2, a2, a3
; RV64I-NEXT: slli a0, a0, 24
; RV64I-NEXT: srliw a0, a0, 8
; RV64I-NEXT: andi a0, a0, -256
; RV64I-NEXT: or a0, a0, a2
; RV64I-NEXT: or a1, a0, a1
; RV64I-NEXT: slli a1, a1, 16
; RV64I-NEXT: srliw a0, a0, 16
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: slliw a0, a0, 16
; RV64I-NEXT: srliw a1, a1, 16
; RV64I-NEXT: or a0, a1, a0
; RV64I-NEXT: ret
;
; RV64B-LABEL: bswap_rotr_i32:
@ -3118,20 +3090,17 @@ define i32 @bswap_rotr_i32(i32 %a) {
define i32 @bswap_rotl_i32(i32 %a) {
; RV64I-LABEL: bswap_rotl_i32:
; RV64I: # %bb.0:
; RV64I-NEXT: srliw a1, a0, 8
; RV64I-NEXT: lui a2, 16
; RV64I-NEXT: addiw a2, a2, -256
; RV64I-NEXT: and a1, a1, a2
; RV64I-NEXT: srliw a2, a0, 24
; RV64I-NEXT: or a1, a1, a2
; RV64I-NEXT: srliw a1, a0, 24
; RV64I-NEXT: srliw a2, a0, 8
; RV64I-NEXT: andi a2, a2, -256
; RV64I-NEXT: or a1, a2, a1
; RV64I-NEXT: slli a2, a0, 8
; RV64I-NEXT: lui a3, 4080
; RV64I-NEXT: and a2, a2, a3
; RV64I-NEXT: slli a0, a0, 24
; RV64I-NEXT: or a0, a0, a2
; RV64I-NEXT: or a1, a0, a1
; RV64I-NEXT: slli a1, a1, 16
; RV64I-NEXT: srliw a0, a0, 16
; RV64I-NEXT: slliw a1, a1, 16
; RV64I-NEXT: or a0, a1, a0
; RV64I-NEXT: ret
;
@ -3161,7 +3130,7 @@ define i32 @bitreverse_bswap_i32(i32 %a) {
; RV64I-NEXT: slli a3, a0, 8
; RV64I-NEXT: lui a4, 4080
; RV64I-NEXT: and a3, a3, a4
; RV64I-NEXT: slli a0, a0, 24
; RV64I-NEXT: slliw a0, a0, 24
; RV64I-NEXT: or a0, a0, a3
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: srli a1, a0, 4
@ -3169,29 +3138,29 @@ define i32 @bitreverse_bswap_i32(i32 %a) {
; RV64I-NEXT: addiw a3, a3, -241
; RV64I-NEXT: and a1, a1, a3
; RV64I-NEXT: and a0, a0, a3
; RV64I-NEXT: slli a0, a0, 4
; RV64I-NEXT: slliw a0, a0, 4
; RV64I-NEXT: or a0, a1, a0
; RV64I-NEXT: srli a1, a0, 2
; RV64I-NEXT: lui a3, 209715
; RV64I-NEXT: addiw a3, a3, 819
; RV64I-NEXT: and a1, a1, a3
; RV64I-NEXT: and a0, a0, a3
; RV64I-NEXT: slli a0, a0, 2
; RV64I-NEXT: slliw a0, a0, 2
; RV64I-NEXT: or a0, a1, a0
; RV64I-NEXT: srli a1, a0, 1
; RV64I-NEXT: lui a3, 349525
; RV64I-NEXT: addiw a3, a3, 1365
; RV64I-NEXT: and a1, a1, a3
; RV64I-NEXT: and a0, a0, a3
; RV64I-NEXT: slli a0, a0, 1
; RV64I-NEXT: slliw a0, a0, 1
; RV64I-NEXT: or a0, a1, a0
; RV64I-NEXT: srli a1, a0, 8
; RV64I-NEXT: srliw a1, a0, 8
; RV64I-NEXT: and a1, a1, a2
; RV64I-NEXT: srli a2, a0, 24
; RV64I-NEXT: srliw a2, a0, 24
; RV64I-NEXT: or a1, a1, a2
; RV64I-NEXT: slli a2, a0, 8
; RV64I-NEXT: and a2, a2, a4
; RV64I-NEXT: slli a0, a0, 24
; RV64I-NEXT: slliw a0, a0, 24
; RV64I-NEXT: or a0, a0, a2
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: ret
@ -3704,9 +3673,8 @@ define signext i32 @pack_i32(i32 signext %a, i32 signext %b) nounwind {
; RV64I-NEXT: lui a2, 16
; RV64I-NEXT: addiw a2, a2, -1
; RV64I-NEXT: and a0, a0, a2
; RV64I-NEXT: slli a1, a1, 16
; RV64I-NEXT: slliw a1, a1, 16
; RV64I-NEXT: or a0, a1, a0
; RV64I-NEXT: sext.w a0, a0
; RV64I-NEXT: ret
;
; RV64B-LABEL: pack_i32: