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gcc.target/cris/dbr-1.c: New test.

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Random spotting.  Exposes the missed benefit for delay-slot
filling of a splitter for indexed addressing mode (the [rN+M]
one).  To be considered for common instructions and perhaps only
for suitable M; at least +-63 is obvious (when there's a register
available) as both the original and the add fit in delay-slots.
This commit is contained in:
Hans-Peter Nilsson 2020-02-10 17:42:58 +01:00
parent 7573521f46
commit d50ecb8388
2 changed files with 15 additions and 5 deletions
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9
gcc/testsuite/ChangeLog
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@ -3,10 +3,9 @@
* gcc.target/cris/cris.exp (check_effective_target_cc0): New.
PR target/93372
* gcc.target/cris/pr93372-1.c: New test.
* gcc.target/cris/pr93372-2.c, gcc.target/cris/pr93372-5.c,
gcc.target/cris/pr93372-8.c: New tests.
* gcc.target/cris/pr93372-3.c, gcc.target/cris/pr93372-4.c,
* gcc.target/cris/pr93372-1.c, gcc.target/cris/pr93372-2.c,
gcc.target/cris/pr93372-5.c, gcc.target/cris/pr93372-8.c,
gcc.target/cris/pr93372-3.c, gcc.target/cris/pr93372-4.c,
gcc.target/cris/pr93372-6.c, gcc.target/cris/pr93372-7.c,
gcc.target/cris/pr93372-9.c, gcc.target/cris/pr93372-10.c,
gcc.target/cris/pr93372-11.c, gcc.target/cris/pr93372-12.c,
@ -21,7 +20,7 @@
gcc.target/cris/pr93372-29.c, gcc.target/cris/pr93372-30.c,
gcc.target/cris/pr93372-31.c, gcc.target/cris/pr93372-32.c,
gcc.target/cris/pr93372-33.c, gcc.target/cris/pr93372-34.c,
gcc.target/cris/pr93372-35.c: New tests.
gcc.target/cris/pr93372-35.c, gcc.target/cris/dbr-1.c: New tests.
2020-02-10 Jakub Jelinek <jakub@redhat.com>

11
gcc/testsuite/gcc.target/cris/dbr-1.c Normal file
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@ -0,0 +1,11 @@
/* Check that delayed-branch-slot is able to fill a trivially fillable
slot. The xfail is due to the "move.d [$r10+4],$r10" not being split
up into "addq 4,$r10" and "move.d [$r10],$r10"; both slottable and of
the same actual cost in size and cycles as the unsplit insn. */
/* { dg-do compile } */
/* { dg-options "-O2" } */
/* { dg-final { scan-assembler-not "\tnop" { xfail *-*-* } } } */
void *f(void **p)
{
return p[1];
}