Commit Graph

28 Commits

Author SHA1 Message Date
Craig Topper 49758aab94 [X86] Make isel select the shorter form of jump instructions instead of the long form.
The assembler backend will relax to the long form if necessary. This removes a swap from long form to short form in the MCInstLowering code. Selecting the long form used to be required by the old JIT.

llvm-svn: 225242
2015-01-06 04:23:53 +00:00
Craig Topper d3c02f177a Replace several 'assert(false' with 'llvm_unreachable' or fold a condition into the assert.
llvm-svn: 225160
2015-01-05 10:15:49 +00:00
Craig Topper 055845f5cb [X86] Make the instructions that use AdSize16/32/64 co-exist together without using mode predicates.
This is necessary to allow the disassembler to be able to handle AdSize32 instructions in 64-bit mode when address size prefix is used.

Eventually we should probably also support 'addr32' and 'addr16' in the assembler to override the address size on some of these instructions. But for now we'll just use special operand types that will lookup the current mode size to select the right instruction.

llvm-svn: 225075
2015-01-02 07:02:25 +00:00
Craig Topper 2e44492b1d Use MCPhysReg for table of register encodings.
llvm-svn: 224845
2014-12-26 06:36:23 +00:00
Yuri Gorshenin 3e22bb8c54 [asan-asm-instrumentation] Added comment describing how asm instrumentation works.
Summary: [asan-asm-instrumentation] Added comment describing how asm instrumentation works.

Reviewers: eugenis

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D5970

llvm-svn: 220670
2014-10-27 08:38:54 +00:00
NAKAMURA Takumi 9ff272f382 X86AsmInstrumentation.cpp: Dissolve initializer-ranged-for. MSC17 disliked it.
llvm-svn: 220301
2014-10-21 16:22:52 +00:00
Yuri Gorshenin 171eb8dbeb [asan-asm-instrumentation] Fixed memory accesses with rbp as a base or an index register.
Summary: Fixed memory accesses with rbp as a base or an index register.

Reviewers: eugenis

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D5819

llvm-svn: 220283
2014-10-21 10:22:27 +00:00
Yuri Gorshenin ab1b88ab59 [asan-asm-instrumentation] Follow-up fixes to r219602: asserts are moved into
function.

llvm-svn: 219610
2014-10-13 11:44:06 +00:00
Yuri Gorshenin 46853b55fa [asan-asm-instrumentation] Fixed memory references which includes %rsp as a base or an index register.
Summary: [asan-asm-instrumentation] Fixed memory references which includes %rsp as a base or an index register.

Reviewers: eugenis

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D5599

llvm-svn: 219602
2014-10-13 09:37:47 +00:00
Yuri Gorshenin e8c81fd25a [asan-asm-instrumentation] CFI directives are generated for .S files.
Summary: CFI directives are generated for .S files.

Reviewers: eugenis

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D5520

llvm-svn: 219199
2014-10-07 11:03:09 +00:00
Yuri Gorshenin 3939dec1f7 [asan-assembly-instrumentation] Added CFI directives to the generated instrumentation code.
Summary: [asan-assembly-instrumentation] Added CFI directives to the generated instrumentation code.

Reviewers: eugenis

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D5189

llvm-svn: 217482
2014-09-10 09:45:49 +00:00
Yuri Gorshenin c107d147dc [asan-assembly-instrumentation] Prologue and epilogue are moved out from InstrumentMemOperand().
Reviewers: eugenis

Subscribers: llvm-commits

Differential revision: http://reviews.llvm.org/D4923

llvm-svn: 216879
2014-09-01 12:51:00 +00:00
Yuri Gorshenin e2f01eb730 Revert "[asan-assembly-instrumentation] Prologue and epilogue are moved out from InstrumentMemOperand()."
This reverts commit 895aa397038b8de86d83ac0997a70949a486e112.

llvm-svn: 216872
2014-09-01 10:24:04 +00:00
Yuri Gorshenin 506a170d63 [asan-assembly-instrumentation] Prologue and epilogue are moved out from InstrumentMemOperand().
llvm-svn: 216869
2014-09-01 09:56:45 +00:00
Evgeniy Stepanov 5050553ab8 Clang-format over X86AsmInstrumentation.* with LLVM style.
r216536 mistakenly used -style=Google instead of LLVM.

llvm-svn: 216543
2014-08-27 13:11:55 +00:00
Evgeniy Stepanov 4d04f66627 Clang-format over X86AsmInstrumentation.*.
llvm-svn: 216536
2014-08-27 11:10:54 +00:00
Evgeniy Stepanov 77ad86681f [asan] Support x86 REP MOVS asm instrumentation.
Patch by Yuri Gorshenin.

llvm-svn: 214395
2014-07-31 09:11:04 +00:00
Evgeniy Stepanov 6fa6c677cc [asan] Generate asm instrumentation in MC.
Generate entire ASan asm instrumentation in MC without
relying on runtime helper functions.

Patch by Yuri Gorshenin.

llvm-svn: 212455
2014-07-07 13:57:37 +00:00
David Blaikie 960ea3f018 AsmMatchers: Use unique_ptr to manage ownership of MCParsedAsmOperand
I saw at least a memory leak or two from inspection (on probably
untested error paths) and r206991, which was the original inspiration
for this change.

I ran this idea by Jim Grosbach a few weeks ago & he was OK with it.
Since it's a basically mechanical patch that seemed sufficient - usual
post-commit review, revert, etc, as needed.

llvm-svn: 210427
2014-06-08 16:18:35 +00:00
Evgeniy Stepanov fc9c78a6b6 [asan] Fix x86-32 asm instrumentation to preserve flags.
Patch by Yuri Gorshenin.

llvm-svn: 209280
2014-05-21 08:14:24 +00:00
Benjamin Kramer 8bbadc0383 [asan] Stop leaking X86Operands.
llvm-svn: 208400
2014-05-09 09:48:03 +00:00
Evgeniy Stepanov 9661ec0ec3 [asan] Preserve flags in asm instrumentation.
Patch by Yuri Gorshenin.

llvm-svn: 208296
2014-05-08 09:55:24 +00:00
Evgeniy Stepanov 3819f02819 [asan] Add a flag to control asm instrumentation.
With this change, asm instrumentation is disabled by default.

llvm-svn: 208167
2014-05-07 07:54:11 +00:00
Evgeniy Stepanov 29865f7803 [asan] Disable asm instrumentation on unsupported platforms.
Only emit calls to compiler-rt asm routines on platforms where they are
present (currently limited to linux i386/x86_64).

Patch by Yuri Gorshenin.

llvm-svn: 207651
2014-04-30 14:04:31 +00:00
Evgeniy Stepanov f4a36999ad [asan] Use MCInstrInfo in inline asm instrumentation.
Patch by Yuri Gorshenin.

llvm-svn: 207115
2014-04-24 13:29:34 +00:00
Evgeniy Stepanov b6c47a5bd2 [asan] Fix instrumentation of x86 intel syntax inline assembly.
Patch by Yuri Gorshenin.

llvm-svn: 207092
2014-04-24 09:56:15 +00:00
Evgeniy Stepanov 0a951b775e Create MCTargetOptions.
For now it contains a single flag, SanitizeAddress, which enables
AddressSanitizer instrumentation of inline assembly.

Patch by Yuri Gorshenin.

llvm-svn: 206971
2014-04-23 11:16:03 +00:00
Evgeniy Stepanov 49e2625144 AddressSanitizer instrumentation for MOV and MOVAPS.
This is an initial version of *Sanitizer instrumentation of assembly code.

Patch by Yuri Gorshenin.

llvm-svn: 203908
2014-03-14 08:58:04 +00:00