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gcc.dg/loop-8.c: Skip for mmix.

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This test fails for mmix for (almost) the same reason it would fail
for e.g. mipsel-elf: the end-condition of the loop tests against a
register set to a constant, and that register is (one of) the
"unexpected IV" moved out of the loop "without introducing a new
temporary register" and making the dump contain more than one
"Decided", causing a non-matching loop2 dump.  The test should
probably have been restricted to just the original target for which a
problem was observed to be fixed.

gcc/testsuite:
	* gcc.dg/loop-8.c: Skip for mmix.
This commit is contained in:
Hans-Peter Nilsson 2020-08-01 03:22:36 +02:00
parent 48cc2e468c
commit d242fdaec1
1 changed files with 1 additions and 1 deletions
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gcc/testsuite/gcc.dg/loop-8.c
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@ -1,6 +1,6 @@
/* { dg-do compile } */
/* { dg-options "-O1 -fdump-rtl-loop2_invariant" } */
/* { dg-skip-if "unexpected IV" { "hppa*-*-* mips*-*-* visium-*-* powerpc*-*-* riscv*-*-*" } } */
/* { dg-skip-if "unexpected IV" { "hppa*-*-* mips*-*-* visium-*-* powerpc*-*-* riscv*-*-* mmix-*-*" } } */
/* Load immediate on condition is available from z13 on and prevents moving
the load out of the loop, so always run this test with -march=zEC12 that
does not have load immediate on condition. */