10 Commits

Author SHA1 Message Date
Craig Topper
7ffa976993 [X86] Don't fold unaligned loads into SSE ROUNDPS/ROUNDPD for ceil/floor/nearbyint/rint/trunc.
Incorrect patterns were added in r334460. This changes them to check alignment properly for SSE.

llvm-svn: 335062
2018-06-19 17:51:42 +00:00
Mikhail Dvoretckii
b1ce7765be [X86] VRNDSCALE* folding from masked and scalar ffloor and fceil patterns
This patch handles back-end folding of generic patterns created by lowering the
X86 rounding intrinsics to native IR in cases where the instruction isn't a
straightforward packed values rounding operation, but a masked operation or a
scalar operation.

Differential Revision: https://reviews.llvm.org/D45203

llvm-svn: 335037
2018-06-19 10:37:52 +00:00
Craig Topper
df99baa4df [X86] Teach EVEX->VEX pass to turn VRNDSCALE into VROUND when bits 7:4 of the immediate are 0 and the regular EVEX->VEX checks pass.
Bits 7:4 control the scale part of the operation. If the scale is 0 the behavior is equivalent to VROUND.

Fixes PR36246

llvm-svn: 324985
2018-02-13 04:19:26 +00:00
Francis Visoiu Mistrih
25528d6de7 [CodeGen] Unify MBB reference format in both MIR and debug output
As part of the unification of the debug format and the MIR format, print
MBB references as '%bb.5'.

The MIR printer prints the IR name of a MBB only for block definitions.

* find . \( -name "*.mir" -o -name "*.cpp" -o -name "*.h" -o -name "*.ll" \) -type f -print0 | xargs -0 sed -i '' -E 's/BB#" << ([a-zA-Z0-9_]+)->getNumber\(\)/" << printMBBReference(*\1)/g'
* find . \( -name "*.mir" -o -name "*.cpp" -o -name "*.h" -o -name "*.ll" \) -type f -print0 | xargs -0 sed -i '' -E 's/BB#" << ([a-zA-Z0-9_]+)\.getNumber\(\)/" << printMBBReference(\1)/g'
* find . \( -name "*.txt" -o -name "*.s" -o -name "*.mir" -o -name "*.cpp" -o -name "*.h" -o -name "*.ll" \) -type f -print0 | xargs -0 sed -i '' -E 's/BB#([0-9]+)/%bb.\1/g'
* grep -nr 'BB#' and fix

Differential Revision: https://reviews.llvm.org/D40422

llvm-svn: 319665
2017-12-04 17:18:51 +00:00
Craig Topper
ac250825c6 [X86] Use vrndscaleps/pd for 128/256 ffloor/ftrunc/fceil/fnearbyint/frint when avx512vl is enabled.
This matches what we do for scalar and 512-bit types.

llvm-svn: 317991
2017-11-11 21:44:51 +00:00
Craig Topper
e44fc7836e [X86] Add avx512vl command line to vec_floor.ll. Add 512-bit test cases.
llvm-svn: 317989
2017-11-11 21:44:49 +00:00
Simon Pilgrim
3243b21dae [X86][SSE] Regenerated vector float tests - fabs / floor(etc.) / fneg / float2double
llvm-svn: 265186
2016-04-01 21:30:48 +00:00
Simon Pilgrim
07e063e44c [DAGCombiner] Add support for FCEIL, FFLOOR and FTRUNC vector constant folding
Differential Revision: http://reviews.llvm.org/D8715

llvm-svn: 234179
2015-04-06 17:15:41 +00:00
Craig Topper
70601ba6f9 Use roundps/pd for llvm.ceil, llvm.trunc, llvm.rint, and llvm.nearbyint of vector types.
llvm-svn: 168141
2012-11-16 06:37:56 +00:00
Craig Topper
4ed79bd7d7 Add instruction selection for ffloor of vectors when SSE4.1 or AVX is enabled.
llvm-svn: 163473
2012-09-08 17:42:27 +00:00