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| author | vmakarov <vmakarov@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-11-23 01:29:07 +0000 |
|---|---|---|
| committer | vmakarov <vmakarov@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-11-23 01:29:07 +0000 |
| commit | fc8a0f6057d7d0f4079bc7249825002f58da6613 (patch) | |
| tree | c75c3eaee2df7bd4f719de0d47556e7ab346e8eb /gcc/lra-lives.c | |
| parent | a96132f29aa3dfe94141a87537f62ea73ce0fc19 (diff) | |
| download | gcc-fc8a0f6057d7d0f4079bc7249825002f58da6613.tar.gz | |
2012-11-22 Vladimir Makarov <vmakarov@redhat.com>
PR middle-end/55430
* lra.c: Move #include "hard-reg-set.h" before #include "rtl.h".
(new_insn_reg): Update biggest_mode.
(collect_non_operand_hard_regs): Check eliminable regs too.
(initialize_lra_reg_info_element): Initialize biggest_mode.
(add_regs_to_insn_regno_info): Ignore non-allocatable
non-eliminable hard regs.
(lra.c): Move setting lra_no_alloc_regs before
init_insn_recog_data.
* lra-constraints.c (simplify_operand_subreg): Add a comment.
(lra_constraints): Ignore equivalent memory of
regs occuring in paradoxical subregs.
* lra-lives.c (lra_create_live_ranges): Add a comment.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@193742 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/lra-lives.c')
| -rw-r--r-- | gcc/lra-lives.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/lra-lives.c b/gcc/lra-lives.c index f2dc359c18b..c79b95bf536 100644 --- a/gcc/lra-lives.c +++ b/gcc/lra-lives.c @@ -935,6 +935,10 @@ lra_create_live_ranges (bool all_p) #ifdef STACK_REGS lra_reg_info[i].no_stack_p = false; #endif + /* The biggest mode is already set but its value might be to + conservative because of recent transformation. Here in this + file we recalculate it again as it costs practically + nothing. */ if (regno_reg_rtx[i] != NULL_RTX) lra_reg_info[i].biggest_mode = GET_MODE (regno_reg_rtx[i]); else |