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Craig Topper 30d3e9c395 [X86][CostModel] Adjust the costs of ZERO_EXTEND/SIGN_EXTEND with less than 128-bit inputs 
Now that we legalize by widening, the element types here won't change. Previously these were modeled as the elements being widened and then the instruction might become an AND or SHL/ASHR pair. But now they'll become something like a ZERO_EXTEND_VECTOR_INREG/SIGN_EXTEND_VECTOR_INREG.

For AVX2, when the destination type is legal its clear the cost should be 1 since we have extend instructions that can produce 256 bit vectors from less than 128 bit vectors. I'm a little less sure about AVX1 costs, but I think the ones I changed were definitely too high, but they might still be too high.

Differential Revision: https://reviews.llvm.org/D66169

llvm-svn: 368858
 		2019-08-14 14:52:39 +00:00
clang [analyzer][NFC] Prove that we only track the evaluated part of the condition 2019-08-14 13:51:52 +00:00
clang-tools-extra [clangd][vscode] Surface the error when applying tweaks fails 2019-08-14 13:38:52 +00:00
compiler-rt [TSan] Fix test failing on Linux 2019-08-13 00:37:48 +00:00
debuginfo-tests Make nrvo-string test more robust. 2019-06-27 20:38:37 +00:00
libclc Revert "Rename F_{None,Text,Append} to OF_{None,Text,Append}. NFC" 2019-08-05 17:23:23 +00:00
libcxx [libc++] Mark two <chrono> tests as unsupported on AppleClang 11 2019-08-13 21:34:49 +00:00
libcxxabi [libcxxabi] Define _LIBCXXABI_GUARD_ABI_ARM on WebAssembly 2019-08-14 01:30:48 +00:00
libunwind [runtimes] Don't depend on libpthread on Android 2019-07-22 20:41:03 +00:00
lld [ELF] --gdb-index: fix odd variable name cUs after r365730 and replace lower_bound with partition_point. NFC 2019-08-14 12:56:30 +00:00
lldb Add missing SetID method to fix Windows build 2019-08-14 13:49:52 +00:00
llgo IR: Support parsing numeric block ids, and emit them in textual output. 2019-03-22 18:27:13 +00:00
llvm [X86][CostModel] Adjust the costs of ZERO_EXTEND/SIGN_EXTEND with less than 128-bit inputs 2019-08-14 14:52:39 +00:00
openmp Factor architecture dependent code out of loop.cu 2019-08-13 21:41:47 +00:00
parallel-libs Fix typos throughout the license files that somehow I and my reviewers 2019-01-21 09:52:34 +00:00
polly [Polly-ACC] Fix test after IR-printer change. 2019-08-13 22:42:08 +00:00
pstl [pstl] Allow customizing whether per-TU insulation is provided 2019-08-13 12:49:00 +00:00
.arcconfig Update monorepo .arcconfig with new project callsign. 2019-01-31 14:34:59 +00:00
.clang-format Add .clang-tidy and .clang-format files to the toplevel of the 2019-01-29 16:43:16 +00:00
.clang-tidy Disable tidy checks with too many hits 2019-02-01 11:20:13 +00:00
.gitignore Change /build to /build* in top-level .gitignore. 2019-08-02 02:14:08 +00:00
README.md
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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.