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authorVladimir N. Makarov <vmakarov@redhat.com>2020-06-04 12:04:48 -0400
committerVladimir N. Makarov <vmakarov@redhat.com>2020-06-04 12:04:48 -0400
commit5261cf8ce824bfc75eb6f12ad5e3716c085b6f9a (patch)
tree0314db79f99340d6ba2e7f1c2336a7fc1c2c94ed /gcc/lra-constraints.c
parentab56390384cd5168b548ff07e6f0c9c4d41420fb (diff)
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Add processing STRICT_LOW_PART for matched reloads.
2020-06-04 Vladimir Makarov <vmakarov@redhat.com> PR middle-end/95464 * lra.c (lra_emit_move): Add processing STRICT_LOW_PART. * lra-constraints.c (match_reload): Use STRICT_LOW_PART in output reload if the original insn has it too.
Diffstat (limited to 'gcc/lra-constraints.c')
-rw-r--r--gcc/lra-constraints.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/gcc/lra-constraints.c b/gcc/lra-constraints.c
index bf6d4a2..421c453 100644
--- a/gcc/lra-constraints.c
+++ b/gcc/lra-constraints.c
@@ -1071,6 +1071,8 @@ match_reload (signed char out, signed char *ins, signed char *outs,
if (find_reg_note (curr_insn, REG_UNUSED, out_rtx) == NULL_RTX)
{
start_sequence ();
+ if (out >= 0 && curr_static_id->operand[out].strict_low)
+ out_rtx = gen_rtx_STRICT_LOW_PART (VOIDmode, out_rtx);
lra_emit_move (out_rtx, copy_rtx (new_out_reg));
emit_insn (*after);
*after = get_insns ();