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llvm-6502/test/Analysis/CostModel/X86
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Arnold Schwaighofer 813456527e X86 cost model: Model cost for uitofp and sitofp on SSE2 
The costs are overfitted so that I can still use the legalization factor.

For example the following kernel has about half the throughput vectorized than
unvectorized when compiled with SSE2. Before this patch we would vectorize it.

unsigned short A[1024];
double B[1024];
void f() {
  int i;
  for (i = 0; i < 1024; ++i) {
    B[i] = (double) A[i];
  }
}

radar://13599001

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179033 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-08 18:05:48 +00:00
..
arith.ll X86 cost model: Vector shifts are expensive in most cases 2013-04-03 21:46:05 +00:00
cast.ll X86TTI: Add accurate costs for itofp operations, based on the actual instruction counts. 2013-04-01 10:23:49 +00:00
cmp.ll Reverse order of checking SSE level when calculating compare cost, so we check 2012-12-18 22:57:56 +00:00
gep.ll ARM cost model: Address computation in vector mem ops not free 2013-02-08 14:50:48 +00:00
i32.ll We are not ready to estimate the cost of integer expansions based on the number of parts. This test is too noisy. 2012-12-23 09:11:07 +00:00
insert-extract-at-zero.ll Cost Model: Normalize the insert/extract index when splitting types 2012-11-05 21:12:13 +00:00
intrinsic-cost.ll Cost model support for lowered math builtins. 2013-02-28 19:09:33 +00:00
lit.local.cfg
load_store.ll Improve the X86 cost model for loads and stores. 2012-12-21 01:33:59 +00:00
loop_v2.ll
sitofp.ll X86 cost model: Model cost for uitofp and sitofp on SSE2 2013-04-08 18:05:48 +00:00
testshiftashr.ll TargetLowering: Fix getTypeConversion handling of extended vector types 2013-04-07 20:22:56 +00:00
testshiftlshr.ll TargetLowering: Fix getTypeConversion handling of extended vector types 2013-04-07 20:22:56 +00:00
testshiftshl.ll TargetLowering: Fix getTypeConversion handling of extended vector types 2013-04-07 20:22:56 +00:00
tiny.ll Cost Model: change the default cost of control flow instructions (br / ret / ...) to zero. 2012-12-05 21:21:26 +00:00
uitofp.ll X86 cost model: Model cost for uitofp and sitofp on SSE2 2013-04-08 18:05:48 +00:00
vectorized-loop.ll Improve the X86 cost model for loads and stores. 2012-12-21 01:33:59 +00:00