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aco/post-ra: rename overwritten_subdword to allow additional uses

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Cc: mesa-stable
Reviewed-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/27855>
(cherry picked from commit a5056b2f93)
This commit is contained in:
Georg Lehmann 2024-03-01 15:52:35 +01:00 • committed by Eric Engestrom
parent 77a4e8b7a4
commit 32e278d0af
2 changed files with 5 additions and 5 deletions
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2
.pick_status.json
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@ -994,7 +994,7 @@
"description": "aco/post-ra: rename overwritten_subdword to allow additional uses",
"nominated": true,
"nomination_type": 0,
"resolution": 0,
"resolution": 1,
"main_sha": null,
"because_sha": null,
"notes": null

8
src/amd/compiler/aco_optimizer_postRA.cpp
View file

@ -57,8 +57,8 @@ Idx const_or_undef{UINT32_MAX, 2};
/** Indicates that a register was overwritten by different instructions in previous blocks. */
Idx overwritten_untrackable{UINT32_MAX, 3};
/** Indicates that a register was written by subdword operations. */
Idx overwritten_subdword{UINT32_MAX, 4};
/** Indicates that there isn't a clear single writer, for example due to subdword operations. */
Idx overwritten_unknown_instr{UINT32_MAX, 4};
struct pr_opt_ctx {
using Idx_array = std::array<Idx, max_reg_cnt>;
@ -150,7 +150,7 @@ save_reg_writes(pr_opt_ctx& ctx, aco_ptr<Instruction>& instr)
Idx idx{ctx.current_block->index, ctx.current_instr_idx};
if (def.regClass().is_subdword())
idx = overwritten_subdword;
idx = overwritten_unknown_instr;
assert((r + dw_size) <= max_reg_cnt);
assert(def.size() == dw_size || def.regClass().is_subdword());
@ -211,7 +211,7 @@ is_overwritten_since(pr_opt_ctx& ctx, PhysReg reg, RegClass rc, const Idx& since
return true;
else if (i == overwritten_untrackable || i == not_written_yet)
continue;
else if (i == overwritten_subdword)
else if (i == overwritten_unknown_instr)
return true;
assert(i.found());