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Fraser Cormack 2679dff453 [RISCV] Reserve an emergency spill slot for any RVV spills 
This patch addresses an issue in which fixed-length (VLS) vector RVV
code could fail to reserve an emergency spill slot for their frame index
elimination. This is because we were previously only reserving a spill
slot when there were `scalable-vector` frame indices being used.
However, fixed-length codegen uses regular-type frame indices if it
needs to spill.

This patch does the fairly brute-force method of checking ahead of time
whether the function contains any RVV spill instructions, in which case
it reserves one slot. Note that the second RVV slot is still only
reserved for `scalable-vector` frame indices.

This unfortunately causes quite a bit of churn in existing tests, where
we chop and change stack offsets for spill slots.

Reviewed By: craig.topper

Differential Revision: https://reviews.llvm.org/D103269
2021-06-03 10:44:34 +01:00
benchmarks
bindings [SanitizeCoverage] Add support for NoSanitizeCoverage function attribute 2021-05-25 12:57:14 +02:00
cmake Pass -gcodeview-ghash when using clang-cl and lld-link 2021-05-27 20:49:17 -07:00
docs [LangRef] update according to unwinding support in inline asm 2021-05-31 09:01:46 +01:00
examples [ORC] Update SpeculativeJIT example for dispatchTask changes in 5344c88dcb2. 2021-05-10 09:30:46 -07:00
include [clang][ARM] Remove arm2/3/6/7m CPU names 2021-06-03 08:55:44 +00:00
lib [RISCV] Reserve an emergency spill slot for any RVV spills 2021-06-03 10:44:34 +01:00
projects llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
resources
runtimes [runtimes] Add the libc project to the list of runtimes. 2021-03-23 17:33:03 +00:00
test [RISCV] Reserve an emergency spill slot for any RVV spills 2021-06-03 10:44:34 +01:00
tools [llvm-dwp] Add support for rnglists and loclists 2021-06-02 12:31:35 -07:00
unittests [clang][ARM] Remove arm2/3/6/7m CPU names 2021-06-03 08:55:44 +00:00
utils [gn build] Port 05d164b25c40 2021-06-02 19:59:40 +00:00
.clang-format
.clang-tidy - Update .clang-tidy to ignore parameters of main like functions for naming violations in clang and llvm directory 2020-01-31 16:49:45 +00:00
.gitattributes
.gitignore Remove .gitignore entries not relevant in the monorepo. 2021-04-07 12:25:02 -07:00
CMakeLists.txt [CMake] Don't LTO optimize targets that aren't part of any distribution 2021-05-19 15:02:11 -07:00
CODE_OWNERS.TXT [M68k][CODE_OWNERS](0/8) Add code owner for the M68k target 2021-03-08 12:30:56 -08:00
configure
CREDITS.TXT Update personal info in CREDITS.TXT 2021-04-11 19:25:02 +08:00
LICENSE.TXT
llvm.spec.in
README.txt Test commit. 2020-03-14 18:08:26 -07:00
RELEASE_TESTERS.TXT

README.txt 

The LLVM Compiler Infrastructure
================================

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

LLVM is open source software. You may freely distribute it under the terms of
the license agreement found in LICENSE.txt.

Please see the documentation provided in docs/ for further
assistance with LLVM, and in particular docs/GettingStarted.rst for getting
started with LLVM and docs/README.txt for an overview of LLVM's
documentation setup.

If you are writing a package for LLVM, see docs/Packaging.rst for our
suggestions.