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Old fork of llvm-mirror, used on older RPCS3 builds
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e6cdd20402
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Craig Topper e6cdd20402 [X86] Use EVEX encoded VRNDSCALE instructions to implement the legacy round intrinsics. 
The VRNDSCALE instructions implement a superset of the (V)ROUND instructions. They are equivalent if the upper 4-bits of the immediate are 0.

This patch lowers the legacy intrinsics to the VRNDSCALE ISD node and masks the upper bits of the immediate to 0. This allows us to take advantage of the larger register encoding space.

We should maybe consider converting VRNDSCALE back to VROUND in the EVEX to VEX pass if the extended registers are not being used.

I notice some load folding opportunities being missed for the VRNDSCALESS/SD instructions that I'll try to fix in future patches.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@318008 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-13 02:03:00 +00:00
bindings Update go bindings to use new functions from rL317135. 2017-11-02 10:22:26 +00:00
cmake Add a Cross-compilation toolchain file for MSVC. 2017-11-09 20:38:16 +00:00
docs [AMDGPU] Correct targets that support XNACK 2017-11-11 00:50:32 +00:00
examples Fix broken links to the Itanium CXX ABI 2017-09-12 00:19:11 +00:00
include [globalisel][tablegen] Import signextload and zeroextload. 2017-11-11 03:23:44 +00:00
lib [X86] Use EVEX encoded VRNDSCALE instructions to implement the legacy round intrinsics. 2017-11-13 02:03:00 +00:00
projects [debuginfo-tests] Make debuginfo-tests work in a standard configuration. 2017-11-10 20:57:57 +00:00
resources
runtimes [CMake][runtimes] Fix the variable name 2017-11-08 23:44:27 +00:00
test [X86] Use EVEX encoded VRNDSCALE instructions to implement the legacy round intrinsics. 2017-11-13 02:03:00 +00:00
tools [llvm-cvtres] Add support for ARM64 2017-11-10 22:27:41 +00:00
unittests [cfi-verify] Made FileAnalysis operate on a GraphResult rather than build one and validate it. 2017-11-10 21:00:22 +00:00
utils [globalisel][tablegen] Import signextload and zeroextload. 2017-11-11 03:23:44 +00:00
.arcconfig
.clang-format
.clang-tidy
.gitignore
CMakeLists.txt [debuginfo-tests] Make debuginfo-tests work in a standard configuration. 2017-11-10 20:57:57 +00:00
CODE_OWNERS.TXT Update my email addresses, NFC. 2017-10-26 10:16:54 +00:00
configure
CREDITS.TXT Add myself to CREDITS.txt 2017-09-18 14:33:39 +00:00
LICENSE.TXT
llvm.spec.in
LLVMBuild.txt
README.txt Test commit access 2017-08-18 02:39:28 +00:00
RELEASE_TESTERS.TXT Update my email addresses, NFC. 2017-10-26 10:16:54 +00:00

README.txt 

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