Jingyue Wu 69adc159ee Disable indvar widening if arithmetics on the wider type are more expensive ... Summary: 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. 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@221772 91177308-0d34-0410-b5e6-96231b3b80d8		2014-11-12 06:58:45 +00:00
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Hello	[CMake] Add LLVM_LINK_COMPONENTS to loadable modules, LLVMHello and BugpointPasses, on Win32.	2014-07-13 13:36:48 +00:00
InstCombine	[PowerPC] Add vec_vsx_ld and vec_vsx_st intrinsics	2014-11-12 04:19:40 +00:00
Instrumentation	[asan] adding ShadowOffset64 for mips64, patch by Kumar Sukhani	2014-11-11 23:02:57 +00:00
IPO	Reformat partially, where I touched for whitespace changes.	2014-10-28 11:54:52 +00:00
ObjCARC	Revert "IR: MDNode => Value"	2014-11-11 21:30:22 +00:00
Scalar	Disable indvar widening if arithmetics on the wider type are more expensive	2014-11-12 06:58:45 +00:00
Utils	Revert "IR: MDNode => Value"	2014-11-11 21:30:22 +00:00
Vectorize	Revert "IR: MDNode => Value"	2014-11-11 21:30:22 +00:00
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