llvm-project/clang
Philip Reames e6ad9ef4e7 [instcombine] Canonicalize constant index type to i64 for extractelement/insertelement
The basic idea to this is that a) having a single canonical type makes CSE easier, and b) many of our transforms are inconsistent about which types we end up with based on visit order.

I'm restricting this to constants as for non-constants, we'd have to decide whether the simplicity was worth extra instructions. For constants, there are no extra instructions.

We chose the canonical type as i64 arbitrarily.  We might consider changing this to something else in the future if we have cause.

Differential Revision: https://reviews.llvm.org/D115387
2021-12-13 16:56:22 -08:00
..
INPUTS
bindings Recommit: Compress formatting of array type names (int [4] -> int[4]) 2021-10-21 11:34:43 -07:00
cmake [Fuchsia][CMake] Don't set libcxxabi and libunwind variables on Windows 2021-11-11 19:29:39 -08:00
docs Revert "[asan] Add support for disable_sanitizer_instrumentation attribute" 2021-12-10 14:33:38 -08:00
examples [clang][driver] Add -fplugin-arg- to pass arguments to plugins 2021-11-25 10:47:55 +01:00
include Add missing textual header to module map 2021-12-13 09:21:21 -08:00
lib [NFC][Clang][OpenMP] Use switch-case statement to process clauses of atomic directive 2021-12-13 19:18:28 -05:00
runtime
test [instcombine] Canonicalize constant index type to i64 for extractelement/insertelement 2021-12-13 16:56:22 -08:00
tools Quote some more destination paths with variables 2021-12-13 17:29:08 +00:00
unittests [clang] [unitttests] Fix linking Basic test to LLVMTestingSupport 2021-12-13 23:00:31 +01:00
utils [ARM] Use v2i1 for MVE and CDE intrinsics 2021-12-03 15:27:58 +00:00
www Update the status of N2412 in C (we do not implement large parts of it) 2021-12-06 13:14:13 -05:00
.clang-format
.clang-tidy
.gitignore
CMakeLists.txt [clang] Remove CLANG_ROUND_TRIP_CC1_ARGS and always roundtrip in +assert builds 2021-11-18 08:31:21 -05:00
CODE_OWNERS.TXT
INSTALL.txt
LICENSE.TXT
ModuleInfo.txt
NOTES.txt
README.txt

README.txt

//===----------------------------------------------------------------------===//
// C Language Family Front-end
//===----------------------------------------------------------------------===//

Welcome to Clang.  This is a compiler front-end for the C family of languages
(C, C++, Objective-C, and Objective-C++) which is built as part of the LLVM
compiler infrastructure project.

Unlike many other compiler frontends, Clang is useful for a number of things
beyond just compiling code: we intend for Clang to be host to a number of
different source-level tools.  One example of this is the Clang Static Analyzer.

If you're interested in more (including how to build Clang) it is best to read
the relevant web sites.  Here are some pointers:

Information on Clang:             http://clang.llvm.org/
Building and using Clang:         http://clang.llvm.org/get_started.html
Clang Static Analyzer:            http://clang-analyzer.llvm.org/
Information on the LLVM project:  http://llvm.org/

If you have questions or comments about Clang, a great place to discuss them is
on the Clang development mailing list:
  http://lists.llvm.org/mailman/listinfo/cfe-dev

If you find a bug in Clang, please file it in the LLVM bug tracker:
  http://llvm.org/bugs/