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aco/ra: Also consider blocked registers as not containing temps

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Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/37381>
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Natalie Vock 2025-02-17 18:42:47 +01:00 • committed by Marge Bot
parent 642b1f0dce
commit 7ed1aea9c5
1 changed files with 10 additions and 2 deletions
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12
src/amd/compiler/aco_register_allocation.cpp
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@ -329,6 +329,14 @@ public:
return res;
}
unsigned count_zero_or_blocked(PhysRegInterval reg_interval) const
{
unsigned res = 0;
for (PhysReg reg : reg_interval)
res += !regs[reg] || regs[reg] == 0xFFFFFFFF;
return res;
}
/* Returns true if any of the bytes in the given range are allocated or blocked */
bool test(PhysReg start, unsigned num_bytes) const
{
@ -3877,8 +3885,8 @@ register_allocation(Program* program, ra_test_policy policy)
ASSERTED PhysRegInterval vgpr_bounds = get_reg_bounds(ctx, RegType::vgpr, false);
ASSERTED PhysRegInterval sgpr_bounds = get_reg_bounds(ctx, RegType::sgpr, false);
assert(register_file.count_zero(vgpr_bounds) == ctx.vgpr_bounds);
assert(register_file.count_zero(sgpr_bounds) == ctx.sgpr_bounds);
assert(register_file.count_zero_or_blocked(vgpr_bounds) == ctx.vgpr_bounds);
assert(register_file.count_zero_or_blocked(sgpr_bounds) == ctx.sgpr_bounds);
} else if (should_compact_linear_vgprs(ctx, register_file)) {
aco_ptr<Instruction> br = std::move(instructions.back());
instructions.pop_back();