[PATCH][ARM] Tests for arm_restrict_it patterns in thumb2.md

Kyrill Tkachov kyrylo.tkachov@foss.arm.com
Wed Feb 24 14:10:00 GMT 2016


On 05/02/16 10:00, Kyrill Tkachov wrote:
> Hi all,
> I've been auditing the patterns in the arm backend that were added/modified for -mrestrict-it
> and I've come up with a few runtime tests that end up generating those patterns.
> This patch contains 4 tests for 4 patterns that have paths specific to -mrestrict-it.
> There were some patterns like thumb2_mov_negscc_strict_it and thumb2_mov_notscc_strict_it
> that I could not generate at all, because the earlier RTL optimisers always generated some
> equivalent but different (and at least as good) so these splitters never matched.
> I think we could safely remove them, but not at this stage.
> These tests should give us a bit more test coverage into the -mrestrict-it functionality.
> Ok for trunk?
> Thanks,
> Kyrill
> 2016-02-05  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
>     * gcc.target/arm/cond_sub_restrict_it.c: New test.
>     * gcc.target/arm/condarith_restrict_it.c: Likewise.
>     * gcc.target/arm/movcond_restrict_it.c: Likewise.
>     * gcc.target/arm/negscc_restrict_it.c: Likewise.

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