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shader: Add coarse derivatives

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This commit is contained in:
FernandoS27 2021-04-17 12:51:43 +02:00 • committed by ameerj
parent 04c459fc8d
commit 080857b60e
7 changed files with 28 additions and 8 deletions
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8
src/shader_recompiler/ir_opt/constant_propagation_pass.cpp
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@ -428,19 +428,15 @@ void FoldFSwizzleAdd(IR::Block& block, IR::Inst& inst) {
if (!swizzle.IsImmediate()) {
return;
}
const IR::Value value_1{GetThroughCast(inst.Arg(0).Resolve(), IR::Opcode::BitCastF32U32)};
const IR::Value value_2{GetThroughCast(inst.Arg(1).Resolve(), IR::Opcode::BitCastF32U32)};
if (value_1.IsImmediate()) {
return;
}
const u32 swizzle_value{swizzle.U32()};
if (swizzle_value != 0x99 && swizzle_value != 0xA5) {
return;
}
IR::Inst* const inst2{value_1.InstRecursive()};
if (inst2->GetOpcode() != IR::Opcode::ShuffleButterfly) {
return;
@ -449,19 +445,15 @@ void FoldFSwizzleAdd(IR::Block& block, IR::Inst& inst) {
if (value_2 != value_3) {
return;
}
const IR::Value index{inst2->Arg(1)};
const IR::Value clamp{inst2->Arg(2)};
const IR::Value segmentation_mask{inst2->Arg(3)};
if (!index.IsImmediate() || !clamp.IsImmediate() || !segmentation_mask.IsImmediate()) {
return;
}
if (clamp.U32() != 3 || segmentation_mask.U32() != 28) {
return;
}
if (swizzle_value == 0x99) {
// DPdxFine
if (index.U32() == 1) {