diff options
| author | rsandifo <rsandifo@138bc75d-0d04-0410-961f-82ee72b054a4> | 2007-07-25 18:12:15 +0000 |
|---|---|---|
| committer | rsandifo <rsandifo@138bc75d-0d04-0410-961f-82ee72b054a4> | 2007-07-25 18:12:15 +0000 |
| commit | 6c1ca223e9018b57e04f59b7d55fd477d83d7974 (patch) | |
| tree | 633bc5490187a8c6bddbd460292b9b87ba0c21e3 | |
| parent | 0c16c31bf1b11ad55a190abc6a003ce55f0d93e3 (diff) | |
| download | gcc-6c1ca223e9018b57e04f59b7d55fd477d83d7974.tar.gz | |
gcc/
* config/mips/mips.c (machine_function): Add
initialized_mips16_gp_pseudo_p.
(mips16_gp_pseudo_reg): Do not emit the initialization of
mips16_gp_pseudo_rtx when being called from the gimple cost-
calculation routines; emit it on the first use outside those
routines.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@126919 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | gcc/ChangeLog | 9 | ||||
| -rw-r--r-- | gcc/config/mips/mips.c | 14 |
2 files changed, 21 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index aee62339d47..20bcc6988b7 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,12 @@ +2007-07-25 Richard Sandiford <richard@codesourcery.com> + + * config/mips/mips.c (machine_function): Add + initialized_mips16_gp_pseudo_p. + (mips16_gp_pseudo_reg): Do not emit the initialization of + mips16_gp_pseudo_rtx when being called from the gimple cost- + calculation routines; emit it on the first use outside those + routines. + 2007-07-25 Kaveh R. Ghazi <ghazi@caip.rutgers.edu> * coretypes.h (const_bitmap, const_rtx, const_rtvec, const_tree): diff --git a/gcc/config/mips/mips.c b/gcc/config/mips/mips.c index f42fe77eaf1..e9e79ee4e1e 100644 --- a/gcc/config/mips/mips.c +++ b/gcc/config/mips/mips.c @@ -477,6 +477,10 @@ struct machine_function GTY(()) { /* True if the function is known to have an instruction that needs $gp. */ bool has_gp_insn_p; + + /* True if we have emitted an instruction to initialize + mips16_gp_pseudo_rtx. */ + bool initialized_mips16_gp_pseudo_p; }; /* Information about a single argument. */ @@ -8774,11 +8778,15 @@ static rtx mips16_gp_pseudo_reg (void) { if (cfun->machine->mips16_gp_pseudo_rtx == NULL_RTX) + cfun->machine->mips16_gp_pseudo_rtx = gen_reg_rtx (Pmode); + + /* Don't initialize the pseudo register if we are being called from + the tree optimizers' cost-calculation routines. */ + if (!cfun->machine->initialized_mips16_gp_pseudo_p + && current_ir_type () != IR_GIMPLE) { rtx insn, scan; - cfun->machine->mips16_gp_pseudo_rtx = gen_reg_rtx (Pmode); - /* We want to initialize this to a value which gcc will believe is constant. */ insn = gen_load_const_gp (cfun->machine->mips16_gp_pseudo_rtx); @@ -8794,6 +8802,8 @@ mips16_gp_pseudo_reg (void) scan = get_insns (); insn = emit_insn_after (insn, scan); pop_topmost_sequence (); + + cfun->machine->initialized_mips16_gp_pseudo_p = true; } return cfun->machine->mips16_gp_pseudo_rtx; |