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| author | Richard Sandiford <richard.sandiford@arm.com> | 2019-09-30 16:20:12 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@gcc.gnu.org> | 2019-09-30 16:20:12 +0000 |
| commit | 016996861c7333f42772c84a5a2a4e52e0bd07c5 (patch) | |
| tree | 5bf8aef888cc343864b239c4422ff9982fb64299 | |
| parent | 7392e5d8888462610b5536c2894d2923b826faed (diff) | |
| download | gcc-016996861c7333f42772c84a5a2a4e52e0bd07c5.zip gcc-016996861c7333f42772c84a5a2a4e52e0bd07c5.tar.gz gcc-016996861c7333f42772c84a5a2a4e52e0bd07c5.tar.bz2 | |
Remove global call sets: cfgcleanup.c
old_insns_match_p just tests whether two instructions are
similar enough to merge. With insn_callee_abi it makes more
sense to compare the ABIs directly.
2019-09-30 Richard Sandiford <richard.sandiford@arm.com>
gcc/
* cfgcleanup.c (old_insns_match_p): Compare the ABIs of calls
instead of the call-clobbered sets.
From-SVN: r276314
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/cfgcleanup.c | 8 |
2 files changed, 6 insertions, 7 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index d912a87..a3e4ff2 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,10 @@ 2019-09-30 Richard Sandiford <richard.sandiford@arm.com> + * cfgcleanup.c (old_insns_match_p): Compare the ABIs of calls + instead of the call-clobbered sets. + +2019-09-30 Richard Sandiford <richard.sandiford@arm.com> + * caller-save.c (setup_save_areas): Remove redundant |s of fixed_reg_set. (save_call_clobbered_regs): Likewise. Use the call ABI rather diff --git a/gcc/cfgcleanup.c b/gcc/cfgcleanup.c index 329fa0c..ced7e0a 100644 --- a/gcc/cfgcleanup.c +++ b/gcc/cfgcleanup.c @@ -1227,13 +1227,7 @@ old_insns_match_p (int mode ATTRIBUTE_UNUSED, rtx_insn *i1, rtx_insn *i2) } } - HARD_REG_SET i1_used = insn_callee_abi (i1).full_reg_clobbers (); - HARD_REG_SET i2_used = insn_callee_abi (i2).full_reg_clobbers (); - /* ??? This preserves traditional behavior; it might not be needed. */ - i1_used |= fixed_reg_set; - i2_used |= fixed_reg_set; - - if (i1_used != i2_used) + if (insn_callee_abi (i1) != insn_callee_abi (i2)) return dir_none; } |