From 7d6ba5b9840a4ba00a9b0f207c1c119d60dcf8b7 Mon Sep 17 00:00:00 2001
From: ameerj <52414509+ameerj@users.noreply.github.com>
Date: Sun, 7 Mar 2021 22:01:22 -0500
Subject: shader: Implement R2P

---
 src/shader_recompiler/backend/spirv/emit_spirv_integer.cpp | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

(limited to 'src/shader_recompiler/backend/spirv/emit_spirv_integer.cpp')

diff --git a/src/shader_recompiler/backend/spirv/emit_spirv_integer.cpp b/src/shader_recompiler/backend/spirv/emit_spirv_integer.cpp
index 5ab3b5e86..c9de204b0 100644
--- a/src/shader_recompiler/backend/spirv/emit_spirv_integer.cpp
+++ b/src/shader_recompiler/backend/spirv/emit_spirv_integer.cpp
@@ -114,8 +114,13 @@ Id EmitBitFieldSExtract(EmitContext& ctx, Id base, Id offset, Id count) {
     return ctx.OpBitFieldSExtract(ctx.U32[1], base, offset, count);
 }
 
-Id EmitBitFieldUExtract(EmitContext& ctx, Id base, Id offset, Id count) {
-    return ctx.OpBitFieldUExtract(ctx.U32[1], base, offset, count);
+Id EmitBitFieldUExtract(EmitContext& ctx, IR::Inst* inst, Id base, Id offset, Id count) {
+    const Id result{ctx.OpBitFieldUExtract(ctx.U32[1], base, offset, count)};
+    if (IR::Inst* const zero{inst->GetAssociatedPseudoOperation(IR::Opcode::GetZeroFromOp)}) {
+        zero->SetDefinition(ctx.OpIEqual(ctx.U1, result, ctx.u32_zero_value));
+        zero->Invalidate();
+    }
+    return result;
 }
 
 Id EmitBitReverse32(EmitContext& ctx, Id value) {
-- 
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