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Craig Topper bde2b43cb3 [X86] In EFLAGS copy pass, don't emit EXTRACT_SUBREG instructions since we're after peephole 
Normally the peephole pass converts EXTRACT_SUBREG to COPY instructions. But we're after peephole so we can't rely on it to clean these up.

To fix this, the eflags pass now emits a COPY with a subreg input.

I also noticed that in 32-bit mode we need to constrain the input to the copy to ensure the subreg is valid. Otherwise we'll fail verify-machineinstrs

Differential Revision: https://reviews.llvm.org/D50656

llvm-svn: 339945
 		2018-08-16 21:54:02 +00:00
clang Update for LLVM API change 2018-08-16 21:30:24 +00:00
clang-tools-extra Fixed unused variable warning. NFCI. 2018-08-16 13:55:10 +00:00
compiler-rt [hwasan] Add __hwasan_handle_longjmp. 2018-08-16 20:46:41 +00:00
debuginfo-tests SafeStack: Disable Darwin support 2018-08-14 21:38:50 +00:00
libclc amdgcn: Use __constant AS for amdgcn builtins. 2018-08-03 15:14:08 +00:00
libcxx Establish the <bit> header. NFC yet. Reviewed as https://reviews.llvm.org/D50815 2018-08-16 21:35:38 +00:00
libcxxabi [libcxxabi] Fix test_exception_address_alignment test for ARM 2018-08-16 11:38:09 +00:00
libunwind NFC: Test commit access 2018-08-16 16:55:07 +00:00
lld Update LLD tests for CodeView dumper change in r339907 2018-08-16 18:03:06 +00:00
lldb [dotest] Make --test-subdir work with --no-multiprocess 2018-08-16 19:56:38 +00:00
llgo Update copyright year to 2018. 2018-06-18 12:22:17 +00:00
llvm [X86] In EFLAGS copy pass, don't emit EXTRACT_SUBREG instructions since we're after peephole 2018-08-16 21:54:02 +00:00
openmp [OMPT] Remove OMPT idle callback 2018-08-15 13:54:28 +00:00
parallel-libs Update copyright year to 2018. 2018-06-18 12:22:17 +00:00
polly [DepInfo] Use isl++ in Dependences::isValidSchedule. NFC. 2018-08-10 22:33:27 +00:00
README.md
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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.