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path: root/llvm/lib/Target/X86/Disassembler/X86DisassemblerDecoder.cpp
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* [X86] Fix PR23271 - RIP-relative decoding bug in disassembler.Douglas Katzman2015-05-131-9/+8
| | | | | | Differential Revision: http://reviews.llvm.org/D9110 llvm-svn: 237310
* Refactor: Simplify boolean expressions in x86 targetDavid Blaikie2015-03-231-5/+2
| | | | | | | | | | Simplify boolean expressions with `true` and `false` with `clang-tidy` Patch by Richard Thomson. Differential Revision: http://reviews.llvm.org/D8519 llvm-svn: 233002
* [X86] There are only 8 mask registers. Fail disassembly if instruction tries ↵Craig Topper2015-03-021-0/+2
| | | | | | to reference more. llvm-svn: 230931
* [X86] Remove some unused TYPE enums from the disassembler.Craig Topper2015-01-071-2/+0
| | | | llvm-svn: 225343
* [X86] Fix disassembly of absolute moves to work correctly in 16 and 32-bit ↵Craig Topper2014-12-311-0/+26
| | | | | | modes with all 4 combinations of OpSize and AdSize prefixes being present or not. llvm-svn: 225036
* [x86] Simplify detection of jcxz/jecxz/jrcxz in disassembler.Craig Topper2014-12-311-16/+5
| | | | llvm-svn: 225035
* [X86] Add the debug registers DR8-DR15 so we can assemble and disassemble ↵Craig Topper2014-12-261-2/+0
| | | | | | references to them. llvm-svn: 224862
* [X86] Don't fail disassembly if REX.R/REX.B is used on an MMX register. ↵Craig Topper2014-12-261-5/+1
| | | | | | Similar fix to not fail to disassembler CR9-CR15 references. llvm-svn: 224861
* Teach disassembler to handle illegal immediates on (v)cmpps/pd/ss/sd ↵Craig Topper2014-12-261-6/+0
| | | | | | instructions. Instead of rejecting we'll just generate the _alt forms that don't try to alter the mnemonic. While I'm here, merge some common code in the Instruction printers for the condition code replacement and fix the mask on SSE to be 3-bits instead of 4. llvm-svn: 224846
* [X86] Fix a bug where the disassembler was ignoring the VEX.W bit in 32-bit ↵Craig Topper2014-10-071-0/+47
| | | | | | | | | | mode for certain instructions it shouldn't. Unfortunately, this isn't easy to fix since there's no simple way to figure out from the disassembler tables whether the W-bit is being used to select a 64-bit GPR or if its a required part of the opcode. The fix implemented here just looks for "64" in the instruction name and ignores the W-bit in 32-bit mode if its present. Fixes PR21169. llvm-svn: 219194
* Formatting fixes. Most putting 'else' on the same line as the preceding ↵Craig Topper2014-10-071-38/+19
| | | | | | curly brace. llvm-svn: 219193
* Fix filename in header and use C++ version of the C header files.Craig Topper2014-10-071-5/+5
| | | | llvm-svn: 219192
* [X86] AVX512: Add disassembler support for compressed displacementAdam Nemet2014-07-171-2/+5
| | | | | | | | | | | | There are two parts here. First is to modify tablegen to adjust the encoding type ENCODING_RM with the scaling factor. The second is to use the new encoding types to compute the correct displacement in the decoder. Fixes <rdar://problem/17608489> llvm-svn: 213281
* [Disasm][AVX512] Implement decoding of top bit for non-destructive reg fieldsAdam Nemet2014-06-241-1/+2
| | | | | | | | | V' bit in the P2 byte of the EVEX prefix provides the top bit of the NDD and NDS register fields. This was simply not used in the decoder until now. Fixes <rdar://problem/17402661> llvm-svn: 211565
* Fix gcc -Wsign-compare warning in X86DisassemblerTables.cpp.Patrik Hagglund2014-04-281-10/+9
| | | | | | | | | | X86_MAX_OPERANDS is changed to unsigned. Also, add range-based for loops for affected loops. This in turn needed an ArrayRef instead of a pointer-to-array in InternalInstruction. llvm-svn: 207413
* [C++] Use 'nullptr'.Craig Topper2014-04-281-2/+2
| | | | llvm-svn: 207394
* C++ has a bool type! (And C's had one too, for 15 years...)Richard Smith2014-04-201-32/+29
| | | | llvm-svn: 206723
* Don't provide two different definitions of ModRMDecision, OpcodeDecision, ↵Richard Smith2014-04-201-0/+23
| | | | | | and ContextDecision in different source files (depending on #define magic). llvm-svn: 206720
* What year is it! This file has no reason to be written in C, and has doubly noRichard Smith2014-04-201-0/+1819
reason to expose a global symbol 'decodeInstruction' nor to pollute the global scope with a bunch of external linkage entities (some of which conflict with others elsewhere in LLVM). This is just the initial transition to C++; more cleanups to follow. llvm-svn: 206717
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