forked from OSchip/llvm-project
c559e63798
Summary: This helps with more efficient use of memset for pattern initialization From @pcc prototype for -ftrivial-auto-var-init=pattern optimizations Binary size change on CTMark, (with -fuse-ld=lld -Wl,--icf=all, similar results with default linker options) ``` master patch diff Os 8.238864e+05 8.238864e+05 0.0 O3 1.054797e+06 1.054797e+06 0.0 Os zero 8.292384e+05 8.292384e+05 0.0 O3 zero 1.062626e+06 1.062626e+06 0.0 Os pattern 8.579712e+05 8.338048e+05 -0.030299 O3 pattern 1.090502e+06 1.067574e+06 -0.020481 ``` Zero vs Pattern on master ``` zero pattern diff Os 8.292384e+05 8.579712e+05 0.036578 O3 1.062626e+06 1.090502e+06 0.025124 ``` Zero vs Pattern with the patch ``` zero pattern diff Os 8.292384e+05 8.338048e+05 0.003333 O3 1.062626e+06 1.067574e+06 0.003193 ``` Reviewers: pcc, eugenis Subscribers: hiraditya, cfe-commits, llvm-commits Tags: #clang, #llvm Differential Revision: https://reviews.llvm.org/D63967 llvm-svn: 365858 |
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clang | ||
clang-tools-extra | ||
compiler-rt | ||
debuginfo-tests | ||
libclc | ||
libcxx | ||
libcxxabi | ||
libunwind | ||
lld | ||
lldb | ||
llgo | ||
llvm | ||
openmp | ||
parallel-libs | ||
polly | ||
pstl | ||
.arcconfig | ||
.clang-format | ||
.clang-tidy | ||
.gitignore | ||
README.md |
README.md
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.