llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-09-30 19:55:11 +00:00

LLVM backend for 6502

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Jingyue Wu 83c8e732dd Disable indvar widening if arithmetics on the wider type are more expensive Summary: Reapply r221772. The old patch breaks the bot because the @indvar_32_bit test was run whether NVPTX was enabled or not. IndVarSimplify should not widen an indvar if arithmetics on the wider indvar are more expensive than those on the narrower indvar. For instance, although NVPTX64 treats i64 as a legal type, an ADD on i64 is twice as expensive as that on i32, because the hardware needs to simulate a 64-bit integer using two 32-bit integers. Split from D6188, and based on D6195 which adds NVPTXTargetTransformInfo. Fixes PR21148. Test Plan: Added @indvar_32_bit that verifies we do not widen an indvar if the arithmetics on the wider type are more expensive. This test is run only when NVPTX is enabled. Reviewers: jholewinski, eliben, meheff, atrick Reviewed By: atrick Subscribers: jholewinski, llvm-commits Differential Revision: http://reviews.llvm.org/D6196 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221799 91177308-0d34-0410-b5e6-96231b3b80d8		2014-11-12 18:09:15 +00:00
autoconf	Add a check for misbehaving -Wcomment from gcc-4.7 and add	2014-11-05 00:35:15 +00:00
bindings	[OCaml] Fix mismatched CAMLparam/CAMLreturn.	2014-11-03 11:47:14 +00:00
cmake	Pass PRIVATE to target_link_libraries if using shared libraries.	2014-11-07 15:33:56 +00:00
docs	configure.ac lives in autoconf/, not autotools/	2014-11-10 22:36:04 +00:00
examples	[CMake] llvm/examples: Update libdeps for unoptimized builds.	2014-10-31 15:27:16 +00:00
include	Return the number of read bytes in MemoryObject::readBytes.	2014-11-12 17:11:16 +00:00
lib	Disable indvar widening if arithmetics on the wider type are more expensive	2014-11-12 18:09:15 +00:00
projects	[cmake] Use the external project machinery for libcxxabi so that it can	2014-07-25 10:27:40 +00:00
test	Disable indvar widening if arithmetics on the wider type are more expensive	2014-11-12 18:09:15 +00:00
tools	Fixing more -Wcast-qual warnings; NFC.	2014-11-12 14:01:17 +00:00
unittests	Ensure function_refs are copyable even from non-const references	2014-11-12 02:06:08 +00:00
utils	Make TreePattern::error use Twine	2014-11-11 23:48:11 +00:00
.arcconfig
.clang-format
.clang-tidy	Enable display of compiler diagnostics in clang-tidy by default.	2014-10-29 17:29:38 +00:00
.gitignore	Initial version of Go bindings.	2014-10-16 22:48:02 +00:00
CMakeLists.txt	Pass PRIVATE to target_link_libraries if using shared libraries.	2014-11-07 15:33:56 +00:00
CODE_OWNERS.TXT	Add Tom Stellard's role as 3.5 release manager.	2014-09-12 08:07:31 +00:00
configure	Add a check for misbehaving -Wcomment from gcc-4.7 and add	2014-11-05 00:35:15 +00:00
CREDITS.TXT	Rise from the dead and update personal info	2014-08-25 17:51:04 +00:00
LICENSE.TXT	Remove projects/sample.	2014-03-12 22:40:22 +00:00
llvm.spec.in
LLVMBuild.txt
Makefile
Makefile.common
Makefile.config.in	Add a check for misbehaving -Wcomment from gcc-4.7 and add	2014-11-05 00:35:15 +00:00
Makefile.rules	Add a check for misbehaving -Wcomment from gcc-4.7 and add	2014-11-05 00:35:15 +00:00
README.txt	Trivial test commit.	2014-04-26 19:05:45 +00:00

README.txt

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