Commit Graph

8 Commits

Author SHA1 Message Date
Philip Reames 3cfd351efc Correct contents for r352453
I had a local change I hadn't realized when submitting that auto-update.  As such, the auto-update was wrong.  This should fix it, and with that, it's clearly time to stop submitting changes and go to bed.

llvm-svn: 352454
2019-01-29 06:40:02 +00:00
Philip Reames 2ddf96db50 [Tests] Regen to remove future test diffs
This file appears to have been manually editted at some point after being auto-updated. A future change adjusts this file slightly, and all of the updates makes the diff super confusing.

llvm-svn: 352453
2019-01-29 06:34:46 +00:00
Sanjay Patel cafdeb1aa6 [InstCombine] allow SimplifyDemandedVectorElts to work with FP binops
We're a long way from D50992 and D51553, but this is where we have to start.
We weren't back-propagating undefs into binop constant values for anything but
add/sub/mul/and/or/xor. 

This is likely because we have to be careful about not introducing UB/poison 
with div/rem/shift. But I suspect we already are getting the poison part wrong 
for add/sub/mul (although it may not be possible to expose the bug currently
because we use SimplifyDemandedVectorElts from a limited set of opcodes).
See the discussion/implementation from D48987 and D49047.

This patch just enables functionality for FP ops because those do not have 
UB/poison potential.

llvm-svn: 343727
2018-10-03 21:44:59 +00:00
Craig Topper 034adf2683 [X86] Remove and autoupgrade the scalar fma intrinsics with masking.
This converts them to what clang is now using for codegen. Unfortunately, there seem to be a few kinks to work out still. I'll try to address with follow up patches.

llvm-svn: 336871
2018-07-12 00:29:56 +00:00
Mikhail Dvoretckii 8393f90717 [InstCombine] Replacing X86-specific rounding intrinsics with generic floor-ceil
This patch replaces calls to X86-specific intrinsics with floor-ceil semantics
with calls to target-independent @llvm.floor.* and @llvm.ceil.* intrinsics. This
doesn't affect the resulting machine code, as those intrinsics are lowered to
the same instructions, but exposes these specific rounding cases to generic
optimizations.

Differential Revision: https://reviews.llvm.org/D48067

llvm-svn: 335039
2018-06-19 10:49:12 +00:00
Craig Topper 98a79934af [X86] Remove masking from the 512-bit masked floating point add/sub/mul/div intrinsics. Use a select in IR instead.
llvm-svn: 334358
2018-06-10 06:01:36 +00:00
Craig Topper e4c045b7df [X86] Remove mask arguments from permvar builtins/intrinsics. Use a select in IR instead.
Someday maybe we'll use selects for all intrinsics.

llvm-svn: 332824
2018-05-20 23:34:04 +00:00
Justin Bogner 3c6fbad388 InstCombine: Move tests that use target intrinsics into subdirectories
Tests with target intrinsics are inherently target specific, so it
doesn't actually make sense to run them if we've excluded their
target.

llvm-svn: 302979
2017-05-13 05:39:46 +00:00