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Differential D8540

[mips] [IAS] Add support for the BNEZL and BEQZL pseudo-instructions.
ClosedPublic

Authored by tomatabacu on Mar 23 2015, 5:48 AM.

Details

Reviewers
dsanders
Commits
rG91fc0b3c10b6: [mips] [IAS] Add support for the BNEZL and BEQZL pseudo-instructions.
rL234401: [mips] [IAS] Add support for the BNEZL and BEQZL pseudo-instructions.
Summary

They are of the form "bnezl/beqzl $rs, offset" and expand to "bnel/beql $rs, $zero, offset".

These instructions are used in Linux inline assembly.

Diff Detail

Event Timeline

tomatabacu updated this revision to Diff 22460.Mar 23 2015, 5:48 AM
tomatabacu retitled this revision from to [mips] [IAS] Add support for the BNEZL and BEQZL pseudo-instructions..
tomatabacu updated this object.
tomatabacu edited the test plan for this revision. (Show Details)
tomatabacu added a reviewer: dsanders.
tomatabacu added a subscriber: Unknown Object (MLST).
dsanders accepted this revision.Apr 7 2015, 3:59 AM
dsanders edited edge metadata.

LGTM

This revision is now accepted and ready to land.Apr 7 2015, 3:59 AM
tomatabacu closed this revision.Apr 8 2015, 5:17 AM
aqjune mentioned this in D78582: [InstCombine] substitute equivalent constant to reduce logic-of-icmps.Apr 23 2020, 4:09 AM

Revision Contents

PathSize
lib/
Target/
Mips/
4 lines
test/
MC/
Mips/
6 lines

Diff 22460

lib/Target/Mips/MipsInstrInfo.td

Show First 20 Lines • Show All 1,590 Lines • ▼ Show 20 Lines
def : MipsInstAlias<"mtc0 $rt, $rd", (MTC0 GPR32Opnd:$rt, GPR32Opnd:$rd, 0), 0>; def : MipsInstAlias<"mtc0 $rt, $rd", (MTC0 GPR32Opnd:$rt, GPR32Opnd:$rd, 0), 0>;
def : MipsInstAlias<"mfc2 $rt, $rd", (MFC2 GPR32Opnd:$rt, GPR32Opnd:$rd, 0), 0>; def : MipsInstAlias<"mfc2 $rt, $rd", (MFC2 GPR32Opnd:$rt, GPR32Opnd:$rd, 0), 0>;
def : MipsInstAlias<"mtc2 $rt, $rd", (MTC2 GPR32Opnd:$rt, GPR32Opnd:$rd, 0), 0>; def : MipsInstAlias<"mtc2 $rt, $rd", (MTC2 GPR32Opnd:$rt, GPR32Opnd:$rd, 0), 0>;
let AdditionalPredicates = [NotInMicroMips] in { let AdditionalPredicates = [NotInMicroMips] in {
def : MipsInstAlias<"b $offset", (BEQ ZERO, ZERO, brtarget:$offset), 0>; def : MipsInstAlias<"b $offset", (BEQ ZERO, ZERO, brtarget:$offset), 0>;
} }
def : MipsInstAlias<"bnez $rs,$offset", def : MipsInstAlias<"bnez $rs,$offset",
(BNE GPR32Opnd:$rs, ZERO, brtarget:$offset), 0>; (BNE GPR32Opnd:$rs, ZERO, brtarget:$offset), 0>;
def : MipsInstAlias<"bnezl $rs,$offset",
(BNEL GPR32Opnd:$rs, ZERO, brtarget:$offset), 0>;
def : MipsInstAlias<"beqz $rs,$offset", def : MipsInstAlias<"beqz $rs,$offset",
(BEQ GPR32Opnd:$rs, ZERO, brtarget:$offset), 0>; (BEQ GPR32Opnd:$rs, ZERO, brtarget:$offset), 0>;
def : MipsInstAlias<"beqzl $rs,$offset",
(BEQL GPR32Opnd:$rs, ZERO, brtarget:$offset), 0>;
def : MipsInstAlias<"syscall", (SYSCALL 0), 1>; def : MipsInstAlias<"syscall", (SYSCALL 0), 1>;
def : MipsInstAlias<"break", (BREAK 0, 0), 1>; def : MipsInstAlias<"break", (BREAK 0, 0), 1>;
def : MipsInstAlias<"break $imm", (BREAK uimm10:$imm, 0), 1>; def : MipsInstAlias<"break $imm", (BREAK uimm10:$imm, 0), 1>;
def : MipsInstAlias<"ei", (EI ZERO), 1>, ISA_MIPS32R2; def : MipsInstAlias<"ei", (EI ZERO), 1>, ISA_MIPS32R2;
def : MipsInstAlias<"di", (DI ZERO), 1>, ISA_MIPS32R2; def : MipsInstAlias<"di", (DI ZERO), 1>, ISA_MIPS32R2;
def : MipsInstAlias<"teq $rs, $rt", def : MipsInstAlias<"teq $rs, $rt",
▲ Show 20 Lines • Show All 300 Lines • Show Last 20 Lines

test/MC/Mips/mips-jump-delay-slots.s

Show First 20 Lines • Show All 62 Lines • ▼ Show 20 Lines# RUN: llvm-mc %s -triple=mips-unknown-linux -mcpu=mips32r2 | FileCheck %s
# CHECK-NOT: nop # CHECK-NOT: nop
bc1tl $fcc0, 1332 bc1tl $fcc0, 1332
# CHECK: bc1tl $fcc3, 1332 # CHECK: bc1tl $fcc3, 1332
# CHECK-NOT: nop # CHECK-NOT: nop
bc1tl $fcc3, 1332 bc1tl $fcc3, 1332
# CHECK: beql $9, $6, 1332 # CHECK: beql $9, $6, 1332
# CHECK-NOT: nop # CHECK-NOT: nop
beql $9,$6,1332 beql $9,$6,1332
# CHECK: beql $9, $zero, 1332
# CHECK-NOT: nop
beqzl $9,1332
# CHECK: bnel $9, $6, 1332 # CHECK: bnel $9, $6, 1332
# CHECK-NOT: nop # CHECK-NOT: nop
bnel $9,$6,1332 bnel $9,$6,1332
# CHECK: bnel $9, $zero, 1332
# CHECK-NOT: nop
bnezl $9,1332
# CHECK: bgezl $6, 1332 # CHECK: bgezl $6, 1332
# CHECK-NOT: nop # CHECK-NOT: nop
bgezl $6,1332 bgezl $6,1332
# CHECK: bgtzl $6, 1332 # CHECK: bgtzl $6, 1332
# CHECK-NOT: nop # CHECK-NOT: nop
bgtzl $6,1332 bgtzl $6,1332
# CHECK: blezl $6, 1332 # CHECK: blezl $6, 1332
# CHECK-NOT: nop # CHECK-NOT: nop
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