Toma Tabacu 739ca842aa [mips] [IAS] Do not generate redundant move when expanding lw/sw with symbol. ...

Summary:
Even though there is no 2nd register operand in the "lw/sw $8, symbol" case, we still try to find one, 
and we end up with $0, which makes us generate an unnecessary "addu $8, $8, $0" (a.k.a. "move $8, $8").

We can avoid this by checking if the 2nd register operand is different from $0, before generating the addu.

Reviewers: dsanders

Reviewed By: dsanders

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D8055

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@234406 91177308-0d34-0410-b5e6-96231b3b80d8

2015-04-08 13:52:41 +00:00

..

mips1

[mips] [IAS] Remove AssemblerPredicate's from RelocPIC and RelocStatic.

2015-04-08 10:06:45 +00:00

mips2

[mips] [IAS] Remove AssemblerPredicate's from RelocPIC and RelocStatic.

2015-04-08 10:06:45 +00:00

mips3

[mips] [IAS] Remove AssemblerPredicate's from RelocPIC and RelocStatic.

2015-04-08 10:06:45 +00:00

mips4

[mips] [IAS] Remove AssemblerPredicate's from RelocPIC and RelocStatic.

2015-04-08 10:06:45 +00:00

mips5

[mips] [IAS] Remove AssemblerPredicate's from RelocPIC and RelocStatic.

2015-04-08 10:06:45 +00:00

mips32

[mips] [IAS] Remove AssemblerPredicate's from RelocPIC and RelocStatic.

2015-04-08 10:06:45 +00:00

mips32r2

[mips] [IAS] Remove AssemblerPredicate's from RelocPIC and RelocStatic.

2015-04-08 10:06:45 +00:00

mips32r3

[mips] [IAS] Remove AssemblerPredicate's from RelocPIC and RelocStatic.

2015-04-08 10:06:45 +00:00

mips32r5

[mips] [IAS] Remove AssemblerPredicate's from RelocPIC and RelocStatic.

2015-04-08 10:06:45 +00:00

mips32r6

[mips] [IAS] Remove AssemblerPredicate's from RelocPIC and RelocStatic.

2015-04-08 10:06:45 +00:00

mips64

[mips] [IAS] Remove AssemblerPredicate's from RelocPIC and RelocStatic.

2015-04-08 10:06:45 +00:00

mips64r2

[mips] [IAS] Remove AssemblerPredicate's from RelocPIC and RelocStatic.

2015-04-08 10:06:45 +00:00

mips64r3

[mips] [IAS] Remove AssemblerPredicate's from RelocPIC and RelocStatic.

2015-04-08 10:06:45 +00:00

mips64r5

[mips] [IAS] Remove AssemblerPredicate's from RelocPIC and RelocStatic.

2015-04-08 10:06:45 +00:00

mips64r6

[mips] [IAS] Remove AssemblerPredicate's from RelocPIC and RelocStatic.

2015-04-08 10:06:45 +00:00

msa

[mips] Add assembler support for .set msa/nomsa directive.

2014-08-07 12:03:36 +00:00

cfi.s

[mips] Rewrite MipsAsmParser and MipsOperand.

2014-04-01 10:35:28 +00:00

cpload-bad.s

[mips] Improve error/warning messages and testing for the .cpload assembler directive.

2014-11-06 10:02:45 +00:00

cpload.s

Move the Mips target to storing the ABI in the TargetMachine rather

2015-01-26 17:33:46 +00:00

cpsetup-bad.s

[mips] [IAS] Fix using .cpsetup with local labels (PR22518).

2015-02-18 13:46:53 +00:00

cpsetup.s

[mips] [IAS] Fix using .cpsetup with local labels (PR22518).

2015-02-18 13:46:53 +00:00

do_switch1.s

Convert "llc -filetype=obj" test into llvm-mc tests.

2014-03-28 18:30:07 +00:00

do_switch2.s

Convert "llc -filetype=obj" test into llvm-mc tests.

2014-03-28 18:30:07 +00:00

do_switch3.s

Replace obsolete -mattr=n64 command line option with -target-abi=n64. No functional changes.

2015-02-26 12:29:48 +00:00

eh-frame.s

Emit DWARF3 call frame information when DWARF3+ debug info is requested

2014-06-19 15:39:33 +00:00

elf_basic.s

…

elf_eflags_abicalls.s

[mips] Fix ELF e_flags related to -mabicalls and -mplt.

2014-07-17 09:52:56 +00:00

elf_eflags_micromips.s

[mips] Fix ELF e_flags related to -mabicalls and -mplt.

2014-07-17 09:52:56 +00:00

elf_eflags_mips16.s

[mips] Fix ELF e_flags related to -mabicalls and -mplt.

2014-07-17 09:52:56 +00:00

elf_eflags_nan2008.s

[mips] Fix ELF e_flags related to -mabicalls and -mplt.

2014-07-17 09:52:56 +00:00

elf_eflags_nanlegacy.s

[mips] Fix ELF e_flags related to -mabicalls and -mplt.

2014-07-17 09:52:56 +00:00

elf_eflags_noreorder.s

[mips] Fix ELF e_flags related to -mabicalls and -mplt.

2014-07-17 09:52:56 +00:00

elf_eflags_pic0.s

[mips] Fix ELF e_flags related to -mabicalls and -mplt.

2014-07-17 09:52:56 +00:00

elf_eflags_pic2.s

[mips] Fix ELF e_flags related to -mabicalls and -mplt.

2014-07-17 09:52:56 +00:00

elf_eflags.s

[mips] Add backend support for Mips32r[35] and Mips64r[35].

2015-02-18 16:24:50 +00:00

elf_reginfo.s

Move the Mips target to storing the ABI in the TargetMachine rather

2015-01-26 17:33:46 +00:00

elf_st_other.s

…

elf-bigendian.ll

[opaque pointer type] Add textual IR support for explicit type parameter to gep operator

2015-03-13 18:20:45 +00:00

elf-gprel-32-64.s

[mips] Emit all three relocation operations for each relocation entry on Mips64 big-endian systems.

2014-04-30 11:21:10 +00:00

elf-N64.s

[mips] Emit all three relocation operations for each relocation entry on Mips64 big-endian systems.

2014-04-30 11:21:10 +00:00

elf-relsym.s

Map ELf flags back to more specific section kinds.

2014-03-28 19:14:08 +00:00

elf-tls.s

Convert another llc -filetype=obj test.

2014-03-28 19:19:28 +00:00

expr1.s

…

higher-highest-addressing.s

[mips] Extend MipsMCExpr class to handle %higher(sym1 - sym2 + const) and

2014-04-03 10:37:45 +00:00

hilo-addressing.s

…

lit.local.cfg

Reduce verbiage of lit.local.cfg files

2014-06-09 22:42:55 +00:00

llvm-mc-fixup-endianness.s

[mips] Work around inconsistency in llvm-mc's placement of fixup markers

2014-05-23 13:35:24 +00:00

micromips-16-bit-instructions.s

[mips][microMIPS] Implement movep instruction

2015-02-10 16:36:20 +00:00

micromips-alias.s

Mark alias symbols as microMIPS if necessary. Differential Revision: http://llvm-reviews.chandlerc.com/D3080

2014-03-20 09:44:49 +00:00

micromips-alu-instructions.s

[mips][microMIPS] Implement ADDIUPC instruction

2015-01-21 12:10:11 +00:00

micromips-bad-branches.s

[mips][microMIPS] Implement BEQZ16 and BNEZ16 instructions

2015-01-12 12:03:34 +00:00

micromips-branch-fixup.s

[mips][microMIPS] MicroMIPS 16-bit unconditional branch instruction B

2015-01-21 12:39:30 +00:00

micromips-branch-instructions.s

[mips][microMIPS] MicroMIPS 16-bit unconditional branch instruction B

2015-01-21 12:39:30 +00:00

micromips-control-instructions.s

[mips][microMIPS] Implement CACHE, PREF, SSNOP, EHB and PAUSE instructions

2014-12-23 19:55:34 +00:00

micromips-diagnostic-fixup.s

[mips][microMIPS] MicroMIPS 16-bit unconditional branch instruction B

2015-01-21 12:39:30 +00:00

micromips-el-fixup-data.s

Fix some doc and comment typos

2014-04-09 14:47:27 +00:00

micromips-expansions.s

…

micromips-expressions.s

…

micromips-fpu-instructions.s

[mips][microMIPS] Fix opcodes of MFHC1 and MTHC1 instructions.

2014-11-19 13:37:51 +00:00

micromips-func-addr.s

[mips][microMIPS] Relocate with symbol for micromips symbols

2014-12-30 22:04:16 +00:00

micromips-invalid.s

[mips][microMIPS] Implement movep instruction

2015-02-10 16:36:20 +00:00

micromips-jump26.s

…

micromips-jump-instructions.s

[mips][microMIPS] Implement JALX instruction

2015-02-18 17:15:48 +00:00

micromips-label-test-sections.s

[mips][microMIPS] Mark symbols as microMIPS if necessary

2014-11-05 16:35:20 +00:00

micromips-label-test.s

[mips][microMIPS] Mark symbols as microMIPS if necessary

2014-11-05 16:35:20 +00:00

micromips-loadstore-instructions.s

[mips][microMIPS] Implement SWM and LWM aliases

2015-01-28 21:52:27 +00:00

micromips-loadstore-unaligned.s

…

micromips-movcond-instructions.s

…

micromips-multiply-instructions.s

…

micromips-pc16-fixup.s

…

micromips-relocations.s

…

micromips-shift-instructions.s

…

micromips-tailr.s

…

micromips-trap-instructions.s

…

mips64-alu-instructions.s

Revert "[mips] Add names and tests for the hardware registers"

2014-11-04 22:15:05 +00:00

mips64-expansions.s

[mips] Implementation of dli.

2014-06-19 15:08:04 +00:00

mips64-instructions.s

…

mips64-register-names-n32-n64.s

Move the Mips target to storing the ABI in the TargetMachine rather

2015-01-26 17:33:46 +00:00

mips64-register-names-o32.s

Move the Mips target to storing the ABI in the TargetMachine rather

2015-01-26 17:33:46 +00:00

mips64eb-fixups.s

…

mips64extins.ll

Replace obsolete -mattr=n64 command line option with -target-abi=n64. No functional changes.

2015-02-26 12:29:48 +00:00

mips64shift.ll

…

mips_abi_flags_xx_set.s

Re-commit: [mips] Correct section alignments and EntrySizes for .bss, .text, .data, .reginfo, .MIPS.options, and .MIPS.abiflags

2014-07-14 15:05:51 +00:00

mips_abi_flags_xx.s

[mips] Correct .MIPS.abiflags for -mfpxx on MIPS32r6

2014-07-17 09:57:23 +00:00

mips_directives_bad.s

[mips] Improve the error messages given by MipsAsmParser.

2014-09-16 15:00:52 +00:00

mips_directives.s

[mips] Work around inconsistency in llvm-mc's placement of fixup markers

2014-05-23 13:35:24 +00:00

mips_gprel16.s

[mips] Work around inconsistency in llvm-mc's placement of fixup markers

2014-05-23 13:35:24 +00:00

mips-abi-bad.s

[mips] [IAS] Add missing constraints and improve testing for the .module directive.

2015-03-06 12:15:12 +00:00

mips-alu-instructions.s

Revert "[mips] Add names and tests for the hardware registers"

2014-11-04 22:15:05 +00:00

mips-bad-branches.s

…

mips-control-instructions.s

TableGen: use PrintMethods to print more aliases

2014-05-12 18:04:06 +00:00

mips-coprocessor-encodings.s

…

mips-data-directives.s

Mips.abiflags is a new implicitly generated section that will be present on all new modules. The section contains a versioned data structure which represents essentially information to allow a program loader to determine the requirements of the application. This patch implements mips.abiflags section and provides test cases for it.

2014-07-08 08:59:22 +00:00

mips-diagnostic-fixup.s

…

mips-dsp-instructions.s

…

mips-expansions-bad.s

[mips] Improve the error messages given by MipsAsmParser.

2014-09-16 15:00:52 +00:00

mips-expansions.s

[mips] [IAS] Do not generate redundant move when expanding lw/sw with symbol.

2015-04-08 13:52:41 +00:00

mips-fpu-instructions.s

…

mips-hwr-register-names.s

[mips] Add hardware register name "hwr_ulr" ($29)

2014-11-11 11:22:39 +00:00

mips-jump-delay-slots.s

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

2015-04-08 12:15:05 +00:00

mips-jump-instructions.s

…

mips-memory-instructions.s

…

mips-noat.s

[mips] Improve support for the .set at/noat assembler directives.

2015-02-13 10:30:57 +00:00

mips-pc16-fixup.s

…

mips-pdr-bad.s

Re-commit: [mips] Implement .ent, .end, .frame, .mask and .fmask.

2014-08-13 10:07:34 +00:00

mips-pdr.s

Re-commit: [mips] Implement .ent, .end, .frame, .mask and .fmask.

2014-08-13 10:07:34 +00:00

mips-reginfo-fp32.s

[mips] Add MipsOptionRecord abstraction and use it to implement .reginfo/.MIPS.options

2014-07-21 13:30:55 +00:00

mips-reginfo-fp64.s

Move the Mips target to storing the ABI in the TargetMachine rather

2015-01-26 17:33:46 +00:00

mips-register-names-invalid.s

[mips] Rewrite MipsAsmParser and MipsOperand.

2014-04-01 10:35:28 +00:00

mips-register-names-o32.s

[mips] The register names depend on the ABI being N32/N64 rather than the arch being mips64

2014-03-26 11:39:07 +00:00

mips-relocations.s

…

module-directive-bad.s

[mips] [IAS] Add missing constraints and improve testing for the .module directive.

2015-03-06 12:15:12 +00:00

multi-64bit-func.ll

…

nabi-regs.s

Move the Mips target to storing the ABI in the TargetMachine rather

2015-01-26 17:33:46 +00:00

nacl-mask.s

Fix Mips nacl-mask test for new bundle-aligned label behavior

2014-10-22 23:32:00 +00:00

nooddspreg-cmdarg.s

Move the Mips target to storing the ABI in the TargetMachine rather

2015-01-26 17:33:46 +00:00

nooddspreg-error.s

[mips] Add support for -modd-spreg/-mno-odd-spreg

2014-07-10 13:38:23 +00:00

nooddspreg.s

Move the Mips target to storing the ABI in the TargetMachine rather

2015-01-26 17:33:46 +00:00

octeon-instructions.s

[mips] Add range checks and transformation to octeon instructions in AsmParser.

2015-01-27 19:11:28 +00:00

oddspreg.s

Move the Mips target to storing the ABI in the TargetMachine rather

2015-01-26 17:33:46 +00:00

pr11877.s

…

r-mips-got-disp.s

Convert llc -filetype=obj test.

2014-03-28 19:41:33 +00:00

set-arch.s

[mips] Add backend support for Mips32r[35] and Mips64r[35].

2015-02-18 16:24:50 +00:00

set-at-directive-explicit-at.s

[mips] Improve support for the .set at/noat assembler directives.

2015-02-13 10:30:57 +00:00

set-at-directive.s

[mips] Improve support for the .set at/noat assembler directives.

2015-02-13 10:30:57 +00:00

set-at-noat-bad-syntax.s

[mips] Improve support for the .set at/noat assembler directives.

2015-02-13 10:30:57 +00:00

set-defined-symbol.s

[mips] [IAS] Allow .set assignments for already defined symbols.

2015-04-07 13:59:39 +00:00

set-mips0-directive.s

[mips] Add assembler support for .set mips0 directive.

2014-09-09 12:52:14 +00:00

set-mips16-directive.s

[mips] Improve support for the .set mips16/nomips16 assembler directives.

2014-11-04 17:18:07 +00:00

set-mips-directives-bad.s

[mips] Add backend support for Mips32r[35] and Mips64r[35].

2015-02-18 16:24:50 +00:00

set-mips-directives.s

[mips] Add backend support for Mips32r[35] and Mips64r[35].

2015-02-18 16:24:50 +00:00

set-nodsp.s

[mips] Add assembler support for the .set nodsp directive.

2014-09-17 09:01:54 +00:00

set-push-pop-directives-bad.s

[mips] Add assembler support for .set push/pop directive.

2014-09-09 10:15:38 +00:00

set-push-pop-directives.s

[mips] Add assembler support for .set push/pop directive.

2014-09-09 10:15:38 +00:00

sext_64_32.ll

…

sym-expr.s

[mips] Extend ParseJumpTarget to support the full symbol expression syntax.

2014-04-01 10:41:48 +00:00

sym-offset.ll

[opaque pointer type] Add textual IR support for explicit type parameter to gep operator

2015-03-13 18:20:45 +00:00

unaligned-nops.s

Support padding unaligned data in .text.

2014-10-02 13:41:42 +00:00

xgot.s

Don't relocate with sections if there might be a paired relocation.

2014-03-31 19:00:23 +00:00