Commit Graph

4 Commits

Author SHA1 Message Date
Lucas Prates d4ad386ee1 [ARM] Fixing range checks for Neon's vqdmulhq_lane and vqrdmulhq_lane intrinsics
Summary:
The range checks performed for the vqrdmulh_lane and vqrdmulh_lane Neon
intrinsics were incorrectly using their return type as the base type for
the range check performed on their 'lane' argument.

This patch updates those intrisics to use the type of the proper reference
argument to perform the range checks.

Reviewers: jmolloy, t.p.northover, rsmith, olista01, dnsampaio

Reviewed By: dnsampaio

Subscribers: dnsampaio, kristof.beyls, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D74766
2020-03-19 12:08:12 +00:00
Lucas Prates f56550cf7f [ARM] Enabling range checks on Neon intrinsics' lane arguments
Summary:
Range checks were not properly performed in the lane arguments of Neon
intrinsics implemented based on splat operations. Calls to those
intrinsics where translated to `__builtin__shufflevector` calls directly
by the pre-processor through the arm_neon.h macros, missing the chance
for the proper range checks.

This patch enables the range check by introducing an auxiliary splat
instruction in arm_neon.td, delaying the translation to shufflevector
calls to CGBuiltin.cpp in clang after the checks were performed.

Reviewers: jmolloy, t.p.northover, rsmith, olista01, ostannard

Reviewed By: ostannard

Subscribers: ostannard, dnsampaio, danielkiss, kristof.beyls, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D74619
2020-03-19 12:07:23 +00:00
Lucas Prates 7bf23563f4 Revert "[ARM] Setting missing isLaneQ attribute on Neon Intrisics definitions"
This reverts commit 62ab15ffa3.

Multiple commits were unintentionally squashed into this one. Reverting
so each of them can be pushed properly.
2020-03-19 12:01:13 +00:00
Lucas Prates 62ab15ffa3 [ARM] Setting missing isLaneQ attribute on Neon Intrisics definitions
Summary:
Some of the `*_laneq` intrinsics defined in arm_neon.td were missing the
setting of the `isLaneQ` attribute. This patch sets the attribute on the
related definitions, as they will be required to properly perform range
checks on their lane arguments.

Reviewers: jmolloy, t.p.northover, rsmith, olista01, dnsampaio

Reviewed By: dnsampaio

Subscribers: dnsampaio, kristof.beyls, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D74616
2020-03-19 11:52:41 +00:00