Mesa (master): nir: Add a helper to determine if an intrinsic can be reordered
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Wed Jun 19 12:19:10 UTC 2019
Module: Mesa
Branch: master
Commit: a1c737927c0d96f26ce487930aa9a2ed323814c9
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=a1c737927c0d96f26ce487930aa9a2ed323814c9
Author: Connor Abbott <cwabbott0 at gmail.com>
Date: Tue Jun 4 13:02:31 2019 +0200
nir: Add a helper to determine if an intrinsic can be reordered
This is simple now, but we're going to be adding a few more conditions
to this later.
Reviewed-by: Timothy Arceri <tarceri at itsqueeze.com>
---
src/compiler/nir/nir.h | 10 ++++++++++
src/compiler/nir/nir_instr_set.c | 8 ++------
src/compiler/nir/nir_opt_gcm.c | 6 +-----
3 files changed, 13 insertions(+), 11 deletions(-)
diff --git a/src/compiler/nir/nir.h b/src/compiler/nir/nir.h
index 3977e75dc4b..bbe3fed70dd 100644
--- a/src/compiler/nir/nir.h
+++ b/src/compiler/nir/nir.h
@@ -1455,6 +1455,16 @@ nir_intrinsic_align(const nir_intrinsic_instr *intrin)
void nir_rewrite_image_intrinsic(nir_intrinsic_instr *instr,
nir_ssa_def *handle, bool bindless);
+/* Determine if an intrinsic can be arbitrarily reordered and eliminated. */
+static inline bool
+nir_intrinsic_can_reorder(nir_intrinsic_instr *instr)
+{
+ const nir_intrinsic_info *info =
+ &nir_intrinsic_infos[instr->intrinsic];
+ return (info->flags & NIR_INTRINSIC_CAN_ELIMINATE) &&
+ (info->flags & NIR_INTRINSIC_CAN_REORDER);
+}
+
/**
* \group texture information
*
diff --git a/src/compiler/nir/nir_instr_set.c b/src/compiler/nir/nir_instr_set.c
index 1a6a7ab7743..7707b83f489 100644
--- a/src/compiler/nir/nir_instr_set.c
+++ b/src/compiler/nir/nir_instr_set.c
@@ -756,12 +756,8 @@ instr_can_rewrite(nir_instr *instr)
case nir_instr_type_load_const:
case nir_instr_type_phi:
return true;
- case nir_instr_type_intrinsic: {
- const nir_intrinsic_info *info =
- &nir_intrinsic_infos[nir_instr_as_intrinsic(instr)->intrinsic];
- return (info->flags & NIR_INTRINSIC_CAN_ELIMINATE) &&
- (info->flags & NIR_INTRINSIC_CAN_REORDER);
- }
+ case nir_instr_type_intrinsic:
+ return nir_intrinsic_can_reorder(nir_instr_as_intrinsic(instr));
case nir_instr_type_call:
case nir_instr_type_jump:
case nir_instr_type_ssa_undef:
diff --git a/src/compiler/nir/nir_opt_gcm.c b/src/compiler/nir/nir_opt_gcm.c
index e7d3f8ec424..aeae2ad6401 100644
--- a/src/compiler/nir/nir_opt_gcm.c
+++ b/src/compiler/nir/nir_opt_gcm.c
@@ -152,11 +152,7 @@ gcm_pin_instructions_block(nir_block *block, struct gcm_state *state)
break;
case nir_instr_type_intrinsic: {
- const nir_intrinsic_info *info =
- &nir_intrinsic_infos[nir_instr_as_intrinsic(instr)->intrinsic];
-
- if ((info->flags & NIR_INTRINSIC_CAN_ELIMINATE) &&
- (info->flags & NIR_INTRINSIC_CAN_REORDER)) {
+ if (nir_intrinsic_can_reorder(nir_instr_as_intrinsic(instr))) {
instr->pass_flags = 0;
} else {
instr->pass_flags = GCM_INSTR_PINNED;
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