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| author | Sudakshina Das <sudi.das@arm.com> | 2018-01-11 10:46:59 +0000 |
|---|---|---|
| committer | Sudakshina Das <sudi@gcc.gnu.org> | 2018-01-11 10:46:59 +0000 |
| commit | f8f77d4d0028e99035a48626c6e53ebbe2448798 (patch) | |
| tree | a7edf0de0080b6461ea0a4b6a5a37f3aea77a792 /gcc/expmed.c | |
| parent | 69a350853900f6b6f9775deb95efff942020a55f (diff) | |
| download | gcc-f8f77d4d0028e99035a48626c6e53ebbe2448798.tar.gz | |
[PR82096] Fix ICE in int_mode_for_mode with arm-linux-gnueabi
The bug reported a particular test di-longlong64-sync-1.c failing when run
on arm-linux-gnueabi with options -mthumb -march=armv5t -O[g,1,2,3] and
-mthumb -march=armv6 -O[g,1,2,3].
The crash was caused because of the explicit VOIDmode argument that is sent
to emit_store_flag_force () and that the emit_store_flag_force () was not
handling the VOIDmode adequately. This patch fixes that.
ChangeLog entries:
*** gcc/ChangeLog ***
2017-01-11 Sudakshina Das <sudi.das@arm.com>
PR target/82096
* expmed.c (emit_store_flag_force): Swap if const op0
and change VOIDmode to mode of op0.
*** gcc/testsuite/ChangeLog ***
2017-01-11 Sudakshina Das <sudi.das@arm.com>
PR target/82096
* gcc.c-torture/compile/pr82096.c: New test.
From-SVN: r256526
Diffstat (limited to 'gcc/expmed.c')
| -rw-r--r-- | gcc/expmed.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/gcc/expmed.c b/gcc/expmed.c index f34ed9376af..35ce82bbb29 100644 --- a/gcc/expmed.c +++ b/gcc/expmed.c @@ -6082,6 +6082,17 @@ emit_store_flag_force (rtx target, enum rtx_code code, rtx op0, rtx op1, if (tem != 0) return tem; + /* If one operand is constant, make it the second one. Only do this + if the other operand is not constant as well. */ + if (swap_commutative_operands_p (op0, op1)) + { + std::swap (op0, op1); + code = swap_condition (code); + } + + if (mode == VOIDmode) + mode = GET_MODE (op0); + if (!target) target = gen_reg_rtx (word_mode); |