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Sander de Smalen 20eede7093 [AArch64] Disallow vector operand if FPR128 Q register is required. 
Patch https://reviews.llvm.org/D41445 changed the behaviour of 'isReg()'
to also return 'true' if the parsed register operand is a vector
register. Code in the AsmMatcher checks if a register is a subclass of the
expected register class. However, even though both parsed registers map
to the same physical register, the 'v' register is of kind 'NeonVector',
where 'q' is of type Scalar, where isSubclass() does not distinguish
between the two cases.

The solution is to use an AsmOperand instead of the register directly,
and use the PredicateMethod to distinguish the two operands.

This fixes for example:
  ldr v0, [x0]    // 'v0' is an invalid operand for this instruction
  ldr q0, [x0]    // valid

Reviewers: aemerson, Gerolf, SjoerdMeijer, javed.absar

Reviewed By: aemerson

Differential Revision: https://reviews.llvm.org/D46310

llvm-svn: 331755
 		2018-05-08 10:01:04 +00:00
clang Fix 'not all control paths return a value' MSVC warnings. NFCI. 2018-05-08 09:40:32 +00:00
clang-tools-extra Add support for ObjC property name to be a single acronym. 2018-05-04 18:14:08 +00:00
compiler-rt [asan] Fix bug introduced by r331647 2018-05-08 05:58:57 +00:00
debuginfo-tests [Darwin] Specify DWARF 2/4 when running apple accelerator tests. 2018-02-26 20:56:45 +00:00
libclc remquo: Flush denormals if not supported 2018-05-03 05:44:28 +00:00
libcxx Status updates for Rapperswil 2018-05-07 18:59:04 +00:00
libcxxabi Fix test failure for missing _LIBCPP_ENABLE_CXX17_REMOVED_UNEXPECTED_FUNCTIONS 2018-05-03 12:44:27 +00:00
libunwind [cmake] Remove duplicate command line options from build 2018-04-05 20:27:50 +00:00
lld [LLD][ELF][AArch64] Increase test coverage of AArch64ErrataFix [NFC] 2018-05-08 09:36:24 +00:00
lldb Really test type lookup in TestCppTypeLookup.py 2018-05-08 03:08:46 +00:00
llgo irgen: Create functions instead of global variables for builtin hash and equal algorithms. 2017-06-04 22:11:28 +00:00
llvm [AArch64] Disallow vector operand if FPR128 Q register is required. 2018-05-08 10:01:04 +00:00
openmp [OMPT] Fix thread_num for implicit_task_end callbacks in nested parallel regions 2018-05-07 12:42:21 +00:00
parallel-libs [Axccel] Remove -Wno-missing-braces in build 2016-12-19 21:34:07 +00:00
polly [test] Replace undef with true/false to make test case less fragile 2018-05-08 07:24:05 +00:00
README.md Add an svn project to contain the files that appear at the root of the 2017-10-19 21:09:49 +00:00

README.md

Low Level Virtual Machine (LLVM)

This directory and its subdirectories contain source code for LLVM, a toolkit for the construction of highly optimized compilers, optimizers, and runtime environments.