diff options
author | Alyssa Rosenzweig <[email protected]> | 2019-07-24 15:36:46 -0700 |
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committer | Alyssa Rosenzweig <[email protected]> | 2019-07-25 06:37:22 -0700 |
commit | 8ddb0eda42a6c8bd0dc6e14ecfe4459f3f4964c4 (patch) | |
tree | f5bd7e7eb29b7fe38585454e2f0ce89afa0bfaa3 /src/panfrost/midgard | |
parent | b06951d343ca1d94858c6c6c84f3afa3f5bdb806 (diff) |
pan/midgard: Force perspective ops to use vec4
It doesn't make sense to use them with anything less.
Signed-off-by: Alyssa Rosenzweig <[email protected]>
Diffstat (limited to 'src/panfrost/midgard')
-rw-r--r-- | src/panfrost/midgard/midgard_ra.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/src/panfrost/midgard/midgard_ra.c b/src/panfrost/midgard/midgard_ra.c index 19c60f4b05d..485ab789cd4 100644 --- a/src/panfrost/midgard/midgard_ra.c +++ b/src/panfrost/midgard/midgard_ra.c @@ -317,6 +317,16 @@ set_class(unsigned *classes, unsigned node, unsigned class) classes[node] |= (class << 2); } +static void +force_vec4(unsigned *classes, unsigned node) +{ + if ((node < 0) || (node >= SSA_FIXED_MINIMUM)) + return; + + /* Force vec4 = 3 */ + classes[node] |= 0x3; +} + /* Special register classes impose special constraints on who can read their * values, so check that */ @@ -514,6 +524,12 @@ allocate_registers(compiler_context *ctx, bool *spilled) set_class(found_class, ins->ssa_args.src0, class); set_class(found_class, ins->ssa_args.src1, class); + + if (force_r27) { + force_vec4(found_class, ins->ssa_args.dest); + force_vec4(found_class, ins->ssa_args.src0); + force_vec4(found_class, ins->ssa_args.src1); + } } } |