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| author | Richard Sandiford <richard.sandiford@arm.com> | 2017-04-18 18:49:19 +0000 |
|---|---|---|
| committer | Jeff Law <law@gcc.gnu.org> | 2017-04-18 12:49:19 -0600 |
| commit | f380f6082268c9e88fe635b198d9e6e735f07c5f (patch) | |
| tree | 86328766c42bef50f00c651acba10464363486b4 /gcc/haifa-sched.c | |
| parent | 7754ee35771c049bf48b1bf8d8da4c5d19209866 (diff) | |
| download | gcc-f380f6082268c9e88fe635b198d9e6e735f07c5f.zip gcc-f380f6082268c9e88fe635b198d9e6e735f07c5f.tar.gz gcc-f380f6082268c9e88fe635b198d9e6e735f07c5f.tar.bz2 | |
re PR rtl-optimization/80357 (ICE in model_update_limit_points_in_group, at haifa-sched.c:1982 on powerpc64le-linux-gnu)
gcc/
PR rtl-optimization/80357
* haifa-sched.c (tmp_bitmap): New variable.
(model_recompute): Handle duplicate use records.
(alloc_global_sched_pressure_data): Initialize tmp_bitmap.
(free_global_sched_pressure_data): Free it.
gcc/testsuite/
PR rtl-optimization/80357
* gcc.c-torture/compile/pr80357.c: New test.
From-SVN: r246980
Diffstat (limited to 'gcc/haifa-sched.c')
| -rw-r--r-- | gcc/haifa-sched.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/gcc/haifa-sched.c b/gcc/haifa-sched.c index 07de1bb..0ebf110 100644 --- a/gcc/haifa-sched.c +++ b/gcc/haifa-sched.c @@ -930,6 +930,9 @@ static bitmap saved_reg_live; /* Registers mentioned in the current region. */ static bitmap region_ref_regs; +/* Temporary bitmap used for SCHED_PRESSURE_MODEL. */ +static bitmap tmp_bitmap; + /* Effective number of available registers of a given class (see comment in sched_pressure_start_bb). */ static int sched_class_regs_num[N_REG_CLASSES]; @@ -2135,10 +2138,11 @@ model_recompute (rtx_insn *insn) registers that will be born in the range [model_curr_point, POINT). */ num_uses = 0; num_pending_births = 0; + bitmap_clear (tmp_bitmap); for (use = INSN_REG_USE_LIST (insn); use != NULL; use = use->next_insn_use) { new_last = model_last_use_except (use); - if (new_last < point) + if (new_last < point && bitmap_set_bit (tmp_bitmap, use->regno)) { gcc_assert (num_uses < ARRAY_SIZE (uses)); uses[num_uses].last_use = new_last; @@ -7241,6 +7245,8 @@ alloc_global_sched_pressure_data (void) saved_reg_live = BITMAP_ALLOC (NULL); region_ref_regs = BITMAP_ALLOC (NULL); } + if (sched_pressure == SCHED_PRESSURE_MODEL) + tmp_bitmap = BITMAP_ALLOC (NULL); /* Calculate number of CALL_SAVED_REGS and FIXED_REGS in register classes that we calculate register pressure for. */ @@ -7274,6 +7280,8 @@ free_global_sched_pressure_data (void) BITMAP_FREE (region_ref_regs); BITMAP_FREE (saved_reg_live); } + if (sched_pressure == SCHED_PRESSURE_MODEL) + BITMAP_FREE (tmp_bitmap); BITMAP_FREE (curr_reg_live); free (sched_regno_pressure_class); } |