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intel/compiler: don't allocate compaction arrays on the stack

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Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/7569
Cc: mesa-stable
Reviewed-by: Luis Felipe Strano Moraes <luis.strano@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19339>
This commit is contained in:
Lionel Landwerlin
2022-10-27 12:03:35 +03:00
committed by Marge Bot
parent 29588fe116
commit 920aed2121
1 changed files with 14 additions and 5 deletions
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19
src/intel/compiler/brw_eu_compact.c
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@@ -2484,19 +2484,25 @@ brw_compact_instructions(struct brw_codegen *p, int start_offset,
return; return;
const struct intel_device_info *devinfo = p->devinfo; const struct intel_device_info *devinfo = p->devinfo;
if (devinfo->ver == 4 && devinfo->platform != INTEL_PLATFORM_G4X)
return;
void *store = p->store + start_offset / 16; void *store = p->store + start_offset / 16;
/* For an instruction at byte offset 16*i before compaction, this is the /* For an instruction at byte offset 16*i before compaction, this is the
* number of compacted instructions minus the number of padding NOP/NENOPs * number of compacted instructions minus the number of padding NOP/NENOPs
* that preceded it. * that preceded it.
*/ */
int compacted_counts[(p->next_insn_offset - start_offset) / sizeof(brw_inst)]; unsigned num_compacted_counts =
(p->next_insn_offset - start_offset) / sizeof(brw_inst);
int *compacted_counts =
calloc(1, sizeof(*compacted_counts) * num_compacted_counts);
/* For an instruction at byte offset 8*i after compaction, this was its IP /* For an instruction at byte offset 8*i after compaction, this was its IP
* (in 16-byte units) before compaction. * (in 16-byte units) before compaction.
*/ */
int old_ip[(p->next_insn_offset - start_offset) / sizeof(brw_compact_inst) + 1]; unsigned num_old_ip =
(p->next_insn_offset - start_offset) / sizeof(brw_compact_inst) + 1;
if (devinfo->ver == 4 && devinfo->platform != INTEL_PLATFORM_G4X) int *old_ip = calloc(1, sizeof(*old_ip) * num_old_ip);
return;
struct compaction_state c; struct compaction_state c;
compaction_state_init(&c, p->isa); compaction_state_init(&c, p->isa);
@@ -2683,4 +2689,7 @@ brw_compact_instructions(struct brw_codegen *p, int start_offset,
offset = next_offset(devinfo, store, offset); offset = next_offset(devinfo, store, offset);
} }
} }
free(compacted_counts);
free(old_ip);
} }