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rogue: Stop reading write masks

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Scalar SSA.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Faith Ekstrand <faith.ekstrand@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24432>
This commit is contained in:
Alyssa Rosenzweig 2023-08-01 14:25:24 -04:00 • committed by Marge Bot
parent d550dea819
commit e93dd20451
1 changed files with 5 additions and 10 deletions
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15
src/imagination/rogue/rogue_compile.c
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@ -67,12 +67,9 @@ static rogue_ref nir_ssa_reg_alu_src(rogue_shader *shader,
{
unsigned index = alu->src[src_num].src.ssa->index;
unsigned num_components = alu->src[src_num].src.ssa->num_components;
unsigned component = alu->src[src_num].swizzle[0];
unsigned write_mask = alu->dest.write_mask;
unsigned bit_pos = ffs(write_mask) - 1;
assert(util_is_power_of_two_nonzero(write_mask));
unsigned component = alu->src[src_num].swizzle[bit_pos];
assert(num_components == 1);
return vec ? nir_ssa_regarray(shader, index, num_components, component)
: nir_ssa_reg(shader, index, num_components, component);
@ -84,12 +81,10 @@ nir_ssa_reg_alu_dst(rogue_shader *shader, const nir_alu_instr *alu, bool vec)
unsigned num_components = alu->dest.dest.ssa.num_components;
unsigned index = alu->dest.dest.ssa.index;
unsigned write_mask = alu->dest.write_mask;
unsigned component = ffs(write_mask) - 1;
assert(util_is_power_of_two_nonzero(write_mask));
assert(num_components == 1);
return vec ? nir_ssa_regarray(shader, index, num_components, component)
: nir_ssa_reg(shader, index, num_components, component);
return vec ? nir_ssa_regarray(shader, index, num_components, 0)
: nir_ssa_reg(shader, index, num_components, 0);
}
static void trans_nir_jump_return(rogue_builder *b, nir_jump_instr *jump)