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* [mips] Add support for COP0's Branch-On-Cond-Likely instructionsVasileios Kalintiris2014-10-171-0/+8
| | | | | | | | | | | | Reviewers: dsanders Reviewed By: dsanders Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D5782 llvm-svn: 220036
* [mips] Marked the DI/EI instruction aliases as MIPS32r2Vasileios Kalintiris2014-10-161-2/+4
| | | | | | | | | | | | Reviewers: dsanders Reviewed By: dsanders Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D5751 llvm-svn: 219927
* [mips] Move 32-bit ADDiu instruction alias from Mips64InstrInfo.td to ↵Toma Tabacu2014-09-161-0/+1
| | | | | | | | | | MipsInstrInfo.td. Patch by Vasileios Kalintiris. Differential Revision: http://reviews.llvm.org/D5244 llvm-svn: 217868
* [mips] Marked the ADDi instruction aliases as not available in Mips32R6 and ↵Toma Tabacu2014-09-161-0/+4
| | | | | | | | | | Mips64R6. Patch by Vasileios Kalintiris. Differential Revision: http://reviews.llvm.org/D5242 llvm-svn: 217867
* [mips] Marked the Trap-on-Condition instructions as Mips IIDaniel Sanders2014-09-051-0/+12
| | | | | | | | | | | | Patch by Vasileios Kalintiris. Reviewers: dsanders Reviewed By: dsanders Differential Revision: http://reviews.llvm.org/D5173 llvm-svn: 217255
* Revert: r215698 - Current implementation of c.cond.fmt instructions only ↵Daniel Sanders2014-08-172-43/+43
| | | | | | | | | | | accept default cc0 register... It causes a number of regressions when -fintegrated-as is enabled. This happens because there are codegen-only instructions that incorrectly uses the first operand as the encoding for the $fcc register. The regressions do not occur when -via-file-asm is also given. llvm-svn: 215847
* Current implementation of c.cond.fmt instructions only accept default cc0 ↵Vladimir Medic2014-08-152-43/+43
| | | | | | register. This patch enables the instruction to accept other fcc registers. The aliases with default fcc0 registers are also defined. llvm-svn: 215698
* Re-commit: [mips] Correct section alignments and EntrySizes for .bss, .text, ↵Daniel Sanders2014-07-141-21/+20
| | | | | | | | .data, .reginfo, .MIPS.options, and .MIPS.abiflags The lld tests will temporarily fail again but Simon Atanasyan will commit a fix for those shortly. llvm-svn: 212946
* Revert: [mips] Correct section alignments and EntrySizes for .bss, .text, ↵Daniel Sanders2014-07-141-20/+21
| | | | | | | | .data, .reginfo, .MIPS.options, and .MIPS.abiflags This commit causes multiple lld tests to fail. Reverting while I investigate the issue. llvm-svn: 212945
* [mips] Correct section alignments and EntrySizes for .bss, .text, .data, ↵Daniel Sanders2014-07-141-21/+20
| | | | | | | | | | | | | | | | | | .reginfo, .MIPS.options, and .MIPS.abiflags Summary: .bss, .text, and .data are at least 16-byte aligned. .reginfo is 4-byte aligned and has a 24-byte EntrySize. .MIPS.abiflags has an 24-byte EntrySize. .MIPS.options is 8-byte aligned and has 1-byte EntrySize. Using a 1-byte EntrySize for .MIPS.options seems strange because the records are neither 1-byte long nor fixed-length but this matches the value that GAS emits. Differential Revision: http://reviews.llvm.org/D4487 llvm-svn: 212939
* [mips] Correct the AFL_FLAGS1_ODDSPREG flag in .MIPS.abiflags when no ↵Daniel Sanders2014-07-141-1/+1
| | | | | | | | '.module oddspreg' is used Differential Revision: http://reviews.llvm.org/D4486 llvm-svn: 212932
* [Mips] Support SHT_MIPS_ABIFLAGS section type flag in the llvm-readobj,Simon Atanasyan2014-07-131-1/+1
| | | | | | obj2yaml and yaml2obj tools. llvm-svn: 212908
* Mips.abiflags is a new implicitly generated section that will be present on ↵Vladimir Medic2014-07-081-0/+38
| | | | | | 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. llvm-svn: 212519
* [mips] Added support for assembling sdbbp.Daniel Sanders2014-06-241-0/+2
| | | | | | | | | | Summary: This instruction is re-encoded in MIPS32r6/MIPS64r6 without changing the restrictions. We hadn't implemented it for earlier ISA's so it has been added to those too. Differential Revision: http://reviews.llvm.org/D4265 llvm-svn: 211590
* [mips] SYNC $stype instruction was added in Mips32Matheus Almeida2014-06-181-0/+2
| | | | | | but SYNC with an implied operand ($stype = 0) is valid since Mips2. llvm-svn: 211185
* [mips] Update MipsAsmParser so that it's possible to handle immediates that ↵Matheus Almeida2014-06-181-0/+1
| | | | | | | | | | | | start with the binary operator NOT (~). Reviewers: dsanders Reviewed By: dsanders Differential Revision: http://reviews.llvm.org/D4158 llvm-svn: 211163
* [mips] Implement alias for 'and' and 'or' instructions for all ISAs.Matheus Almeida2014-06-181-0/+2
| | | | | | | | | | | | | | | Summary: Examples: and $2, 4 <=> andi $2, $2, 4 or $2, 4 <=> ori $2, $2, 4 Reviewers: dsanders Reviewed By: dsanders Differential Revision: http://reviews.llvm.org/D4155 llvm-svn: 211161
* [mips][mips64r6] cl[oz], and dcl[oz] are re-encoded in MIPS32r6/MIPS64r6Daniel Sanders2014-06-161-2/+2
| | | | | | | | | | | | | | | | | Summary: There is no change to the restrictions, just the result register is stored once in the encoding rather than twice. The rt field is zero in MIPS32r6/MIPS64r6. Depends on D4119 Reviewers: zoran.jovanovic, jkolek, vmedic Reviewed By: vmedic Differential Revision: http://reviews.llvm.org/D4120 llvm-svn: 211019
* [mips][mips64r6] ll, sc, lld, and scd are re-encoded on MIPS32r6/MIPS64r6.Daniel Sanders2014-06-161-2/+2
| | | | | | | | | | | | | | | | | | | | | Summary: The linked-load, store-conditional operations have been re-encoded such that have a 9-bit offset instead of the 16-bit offset they have prior to MIPS32r6/MIPS64r6. While implementing this, I noticed that the atomic load/store pseudos always emit a sign extension using sll and sra. I have improved this to use seb/seh when they are available (MIPS32r2/MIPS64r2 and above). Depends on D4118 Reviewers: jkolek, zoran.jovanovic, vmedic Reviewed By: vmedic Differential Revision: http://reviews.llvm.org/D4119 llvm-svn: 211018
* [mips][mips64r6] [ls][wd]c2 were re-encoded with 11-bit signed immediates ↵Daniel Sanders2014-06-161-4/+4
| | | | | | | | | | | | | | | | | | | | | rather than 16-bit in MIPS32r6/MIPS64r6 Summary: The error message for the invalid.s cases isn't very helpful. It happens because there is an instruction with a wider immediate that would have matched if the NotMips32r6 predicate were true. I have some WIP to improve the message but it affects most error messages for removed/re-encoded instructions on MIPS32r6/MIPS64r6 and should therefore be a separate commit. Depens on D4115 Reviewers: zoran.jovanovic, jkolek, vmedic Reviewed By: vmedic Differential Revision: http://reviews.llvm.org/D4117 llvm-svn: 211012
* [mips] Add cache and pref instructionsDaniel Sanders2014-06-131-0/+2
| | | | | | | | | | | | | | | | | | | Summary: cache and pref were added in MIPS-III, and MIPS32 but were re-encoded in MIPS32r6/MIPS64r6 to use a 9-bit offset rather than the 16-bit offset available to earlier cores. Resolved the decoding conflict between pref and lwc3. Depends on D4115 Reviewers: zoran.jovanovic, jkolek, vmedic Reviewed By: vmedic Differential Revision: http://reviews.llvm.org/D4116 llvm-svn: 210900
* [mips][mips64r6] b(ge|lt)zal are not available on MIPS32r6/MIPS64r6 and bal ↵Daniel Sanders2014-06-131-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | is a normal instruction Summary: b(ge|lt)zal have been removed in MIPS32r6/MIPS64r6. However, bal (an alias for 'bgezal $zero, $offset') still remains with the same encoding it had prior to MIPS32r6/MIPS64r6. Updated the MipsNaCLELFStreamer, and MipsLongBranch to correctly handle the MIPS32r6/MIPS64r6 BAL instruction in addition to the existing BAL_BR pseudo. No changes were required to the CodeGen test that looks for BAL (test/CodeGen/Mips/longbranch.ll) since the new instruction has the same syntax. Depends on D4113 Reviewers: jkolek, zoran.jovanovic, vmedic Reviewed By: vmedic Differential Revision: http://reviews.llvm.org/D4114 llvm-svn: 210898
* [mips][mips64r6] bc1[tf] are not available on MIPS32r6/MIPS64r6Daniel Sanders2014-06-121-0/+6
| | | | | | | | | | | | | | | | | | | | Summary: Also tightened up the acceptable condition operand for these instructions on MIPS-I to MIPS-III. Support for $fcc[1-7] was added in MIPS-IV. Prior to that only $fcc0 is acceptable. We currently don't optimize (BEQZ (NOT $a), $target) and similar. It's probably best to do this in InstCombine. Depends on D4111 Reviewers: jkolek, zoran.jovanovic, vmedic Reviewed By: vmedic Differential Revision: http://reviews.llvm.org/D4112 llvm-svn: 210787
* [mips] Implement jr.hb and jalr.hb (Jump Register and Jump and Link Register ↵Matheus Almeida2014-06-112-0/+13
| | | | | | | | | | | | | | with Hazard Barrier). Summary: These instructions are available in ISAs >= mips32/mips64. For mips32r6/mips64r6, jr.hb has a new encoding format. Reviewers: dsanders Reviewed By: dsanders Differential Revision: http://reviews.llvm.org/D4019 llvm-svn: 210654
* [mips] Fold FeatureSwap into FeatureMips32r2 and FeatureMips64r2Daniel Sanders2014-05-121-0/+10
| | | | | | | | | | | | | | | | | Summary: dsbh and dshd are not available on Mips32r2. No codegen test changes required since expansion of i64 prevented the use of these instructions anyway. Depends on D3690 Reviewers: vmedic Reviewed By: vmedic Differential Revision: http://reviews.llvm.org/D3692 llvm-svn: 208542
* [mips] Added missing dsra -> dsrav and sra -> srav aliases.Daniel Sanders2014-05-091-0/+1
| | | | | | | | | | | | Summary: dsll, dsrl, sll, and srl already exist. Reviewers: vmedic Reviewed By: vmedic Differential Revision: http://reviews.llvm.org/D3673 llvm-svn: 208397
* [mips] Correct tests that are meant to test valid assembly. They were ↵Daniel Sanders2014-05-082-470/+470
| | | | | | | | | | | | | | | | | | | | | | | | | | | actually rejected by GAS. Summary: I've noticed a bug in my test generator script that caused 64-bit objects to be disassembled as if it were using the O32 ABI, giving the wrong register names. As a result, it generated assembly files that are rejected by GAS when assembling for the correct ABI. This was caused by the generator setting the ELF e_flags incorrectly before disassembling the object. This patch corrects the invalid tests that have already been committed by replacing the ABI-dependent register names with numeric registers. In addition to fixing the tests this allows the 32-bit and 64-bit ISA tests to be easily diffed to produce the invalid-*.s tests which test that instructions defined in later ISA's are not accepted. Depends on D3648 Reviewers: vmedic Reviewed By: vmedic Differential Revision: http://reviews.llvm.org/D3649 llvm-svn: 208327
* [mips] Implement l[wd]c3, and s[wd]c3.Daniel Sanders2014-05-081-2/+0
| | | | | | | | | | | | | | | | | | | | | Summary: These instructions were added in MIPS-I, and MIPS-II but were removed in MIPS-III. Interestingly, GAS continues to accept them when assembling for MIPS-III. For the moment, these instructions will follow GAS and accept them for MIPS-III and newer but this will be tightened up when the invalid-*.s tests are added. Depends on D3647 Reviewers: vmedic Reviewed By: vmedic Differential Revision: http://reviews.llvm.org/D3648 llvm-svn: 208311
* [mips] Implement tlbp, tlbr, tlbwi, and tlbwrDaniel Sanders2014-05-082-4/+4
| | | | | | | | | | Reviewers: vmedic, dsanders Reviewed By: dsanders Differential Revision: http://reviews.llvm.org/D3571 llvm-svn: 208301
* [mips] Removed two-operand alias for sllv, sr[al]v, rotrv, dsllv, dsr[al]v, ↵Daniel Sanders2014-05-011-4/+0
| | | | | | | | | | and drotrv GAS doesn't actually accept these particular cases. The mnemonic without the trailing 'v' still supports two-operand aliases. llvm-svn: 207740
* [mips] Add instruction alias (negu).Matheus Almeida2014-04-301-0/+2
| | | | | | | | | | | | Summary: negu $reg is equivalent to negu $reg, $reg. Reviewers: dsanders Reviewed By: dsanders Differential Revision: http://reviews.llvm.org/D3510 llvm-svn: 207673
* [mips] Add instruction alias (sltu).Matheus Almeida2014-04-301-0/+1
| | | | | | | | | | | | | | Summary: The pattern sltu $r1, $r2, $imm is found in handwritten assembly which is just a shorthand version of sltui $r1, $r2, $imm. Reviewers: dsanders Reviewed By: dsanders Differential Revision: http://reviews.llvm.org/D3508 llvm-svn: 207671
* [mips] Add instruction alias (sll and srl).Matheus Almeida2014-04-301-0/+2
| | | | | | | | | | | | | | Summary: The pattern sll/srl $rd, $rt, $rs is found in handwritten assembly which is just a shorthand version of sllv/srlv $rd, $rt, $rs. Reviewers: dsanders Reviewed By: dsanders Differential Revision: http://reviews.llvm.org/D3483 llvm-svn: 207657
* [mips] Update tests with encoding information for slt, slti, sltiu and sltu.Matheus Almeida2014-04-301-4/+4
| | | | | | | | | | | | | | Summary: Also renamed non-portable register names (e.g. $t2) so that we don't end up with a different encoding for what appears to be an equivalent instruction. Reviewers: dsanders Reviewed By: dsanders Differential Revision: http://reviews.llvm.org/D3505 llvm-svn: 207655
* [mips] Use TwoOperandAliasConstraint for shift instructions.Matheus Almeida2014-04-161-4/+17
| | | | | | | | | | This enables TableGen to generate an additional two operand matcher for our shift_rotate_imm and shift_rotate_reg class of instructions. The tests were also updated so that they include now encoding information for all affected instructions. llvm-svn: 206398
* [mips] Add negative tests confirm that supported ISA's don't allow ↵Daniel Sanders2014-04-031-0/+1
| | | | | | | | | | | | | | | | | | | instructions added in later ISA's Summary: test/MC/Mips/<isa1>/invalid-<isa2>.s Test that <isa1> does not support <isa2>'s instructions. test/MC/Mips/<isa1>/invalid-<isa2>-xfail.s Things that should be invalid but currently aren't. Will XPASS if any become invalid. Reviewers: matheusalmeida Reviewed By: matheusalmeida Differential Revision: http://llvm-reviews.chandlerc.com/D3262 llvm-svn: 205538
* [mips] Implement ehb, ssnop, and pause in assemblerDaniel Sanders2014-04-032-3/+3
| | | | | | | | | | | | Summary: Add negative tests for pause Reviewers: matheusalmeida Reviewed By: matheusalmeida Differential Revision: http://llvm-reviews.chandlerc.com/D3246 llvm-svn: 205537
* [mips] Rewrite MipsAsmParser and MipsOperand.Daniel Sanders2014-04-012-15/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Summary: Highlights: - Registers are resolved much later (by the render method). Prior to that point, GPR32's/GPR64's are GPR's regardless of register size. Similarly FGR32's/FGR64's/AFGR64's are FGR's regardless of register size or FR mode. Numeric registers can be anything. - All registers are parsed the same way everywhere (even when handling symbol aliasing) - One consequence is that all registers can be specified numerically almost anywhere (e.g. $fccX, $wX). The exception is symbol aliasing but that can be easily resolved. - Removes the need for the hasConsumedDollar hack - Parenthesis and Bracket suffixes are handled generically - Micromips instructions are parsed directly instead of going through the standard encodings first. - rdhwr accepts all 32 registers, and the following instructions that previously xfailed now work: ddiv, ddivu, div, divu, cvt.l.[ds], se[bh], wsbh, floor.w.[ds], c.ngl.d, c.sf.s, dsbh, dshd, madd.s, msub.s, nmadd.s, nmsub.s, swxc1 - Diagnostics involving registers point at the correct character (the $) - There's only one kind of immediate in MipsOperand. LSA immediates are handled by the predicate and renderer. Lowlights: - Hardcoded '$zero' in the div patterns is handled with a hack. MipsOperand::isReg() will return true for a k_RegisterIndex token with Index == 0 and getReg() will return ZERO for this case. Note that it doesn't return ZERO_64 on isGP64() targets. - I haven't cleaned up all of the now-unused functions. Some more of the generic parser could be removed too (integers and relocs for example). - insve.df needed a custom decoder to handle the implicit fourth operand that was needed to make it parse correctly. The difficulty was that the matcher expected a Token<'0'> but gets an Imm<0>. Adding an implicit zero solved this. Reviewers: matheusalmeida, vmedic Reviewed By: matheusalmeida Differential Revision: http://llvm-reviews.chandlerc.com/D3222 llvm-svn: 205292
* Revert: [mips] Rewrite MipsAsmParser and MipsOperand.' due to buildbot ↵Daniel Sanders2014-03-312-15/+15
| | | | | | | | errors in lld tests. It's currently unable to parse 'sym + imm' without surrounding parenthesis. llvm-svn: 205237
* [mips] Rewrite MipsAsmParser and MipsOperand.Daniel Sanders2014-03-312-15/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Summary: Highlights: - Registers are resolved much later (by the render method). Prior to that point, GPR32's/GPR64's are GPR's regardless of register size. Similarly FGR32's/FGR64's/AFGR64's are FGR's regardless of register size or FR mode. Numeric registers can be anything. - All registers are parsed the same way everywhere (even when handling symbol aliasing) - One consequence is that all registers can be specified numerically almost anywhere (e.g. $fccX, $wX). The exception is symbol aliasing but that can be easily resolved. - Removes the need for the hasConsumedDollar hack - Parenthesis and Bracket suffixes are handled generically - Micromips instructions are parsed directly instead of going through the standard encodings first. - rdhwr accepts all 32 registers, and the following instructions that previously xfailed now work: ddiv, ddivu, div, divu, cvt.l.[ds], se[bh], wsbh, floor.w.[ds], c.ngl.d, c.sf.s, dsbh, dshd, madd.s, msub.s, nmadd.s, nmsub.s, swxc1 - Diagnostics involving registers point at the correct character (the $) - There's only one kind of immediate in MipsOperand. LSA immediates are handled by the predicate and renderer. Lowlights: - Hardcoded '$zero' in the div patterns is handled with a hack. MipsOperand::isReg() will return true for a k_RegisterIndex token with Index == 0 and getReg() will return ZERO for this case. Note that it doesn't return ZERO_64 on isGP64() targets. - I haven't cleaned up all of the now-unused functions. Some more of the generic parser could be removed too (integers and relocs for example). - insve.df needed a custom decoder to handle the implicit fourth operand that was needed to make it parse correctly. The difficulty was that the matcher expected a Token<'0'> but gets an Imm<0>. Adding an implicit zero solved this. Reviewers: matheusalmeida, vmedic Reviewed By: matheusalmeida Differential Revision: http://llvm-reviews.chandlerc.com/D3222 llvm-svn: 205229
* [mips] Added a full set of instruction test cases for all ISA's (but not ASE's).Daniel Sanders2014-03-312-0/+470
Summary: Where those ISA's are not currently supported, the test is run with the smallest superset of that ISA. Some instructions are valid but don't pass yet. These have been placed in the valid-xfail.s's which will XPASS if _any_ instruction starts working. The valid.s's do not verify the encoding yet. There are also no tests checking that instructions from neighbouring ISA's are not accepted. Reviewers: matheusalmeida Reviewed By: matheusalmeida Differential Revision: http://llvm-reviews.chandlerc.com/D3214 llvm-svn: 205180
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