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| author | Vladimir Makarov <vmakarov@redhat.com> | 2014-01-30 21:15:51 +0000 |
|---|---|---|
| committer | Vladimir Makarov <vmakarov@gcc.gnu.org> | 2014-01-30 21:15:51 +0000 |
| commit | 7613fa50759e4e559626f1ff5d8bc6871559bdda (patch) | |
| tree | 4d5e3ff225e209246538e2860d5dce421d844e99 /gcc/lra-constraints.c | |
| parent | 6fb82517e861af9f3e441d39c0ab93229c6ace3b (diff) | |
| download | gcc-7613fa50759e4e559626f1ff5d8bc6871559bdda.zip gcc-7613fa50759e4e559626f1ff5d8bc6871559bdda.tar.gz gcc-7613fa50759e4e559626f1ff5d8bc6871559bdda.tar.bz2 | |
re PR rtl-optimization/59959 (LRA ICEs on a fortran case(Suspected to be similar to pr59915))
2014-01-30 Vladimir Makarov <vmakarov@redhat.com>
PR rtl-optimization/59959
* lra-constrains.c (simplify_operand_subreg): Assign NO_REGS to
any reload of register whose subreg is invalid.
From-SVN: r207323
Diffstat (limited to 'gcc/lra-constraints.c')
| -rw-r--r-- | gcc/lra-constraints.c | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/gcc/lra-constraints.c b/gcc/lra-constraints.c index 34159f7..cb64ee1 100644 --- a/gcc/lra-constraints.c +++ b/gcc/lra-constraints.c @@ -1293,11 +1293,8 @@ simplify_operand_subreg (int nop, enum machine_mode reg_mode) { enum reg_class rclass; - if (REG_P (reg) - && curr_insn_set != NULL_RTX - && (REG_P (SET_SRC (curr_insn_set)) - || GET_CODE (SET_SRC (curr_insn_set)) == SUBREG)) - /* There is big probability that we will get the same class + if (REG_P (reg)) + /* There is a big probability that we will get the same class for the new pseudo and we will get the same insn which means infinite looping. So spill the new pseudo. */ rclass = NO_REGS; |