SpirvShader: Add Intermediate::replace()

This lets us use Intermediate for building intermediates in loops without the need of an alloca. Bug: b/128527271 Change-Id: Id36db83d0b1cedd7700bbf2431eed9b4a03a7997 Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/27769 Presubmit-Ready: Ben Clayton <bclayton@google.com> Tested-by: Ben Clayton <bclayton@google.com> Reviewed-by: Chris Forbes <chrisforbes@google.com> Reviewed-by: Nicolas Capens <nicolascapens@google.com> Kokoro-Presubmit: kokoro <noreply+kokoro@google.com>

SpirvShader: Add Intermediate::replace()
3246ca29 · Ben Clayton · 64f78f56 · 3246ca29
Commit 3246ca29 authored Mar 21, 2019 by Ben Clayton
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SpirvShader.hpp src/Pipeline/SpirvShader.hpp +14 -0

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--- a/src/Pipeline/SpirvShader.hpp
+++ b/src/Pipeline/SpirvShader.hpp
@@ -85,6 +85,14 @@ namespace sw
 		void move(uint32_t i, const RValue<SIMD::Int> &scalar)   { emplace(i, scalar.value); }
 		void move(uint32_t i, const RValue<SIMD::UInt> &scalar)  { emplace(i, scalar.value); }
+		void replace(uint32_t i, RValue<SIMD::Float> &&scalar) { replace(i, scalar.value); }
+		void replace(uint32_t i, RValue<SIMD::Int> &&scalar)   { replace(i, scalar.value); }
+		void replace(uint32_t i, RValue<SIMD::UInt> &&scalar)  { replace(i, scalar.value); }
+		void replace(uint32_t i, const RValue<SIMD::Float> &scalar) { replace(i, scalar.value); }
+		void replace(uint32_t i, const RValue<SIMD::Int> &scalar)   { replace(i, scalar.value); }
+		void replace(uint32_t i, const RValue<SIMD::UInt> &scalar)  { replace(i, scalar.value); }
 		// Value retrieval functions.
 		RValue<SIMD::Float> Float(uint32_t i) const
 		{
@@ -121,6 +129,12 @@ namespace sw
 			scalar[i] = value;
 		}
+		void replace(uint32_t i, rr::Value *value)
+		{
+			ASSERT(i < size);
+			scalar[i] = value;
+		}
 		rr::Value **const scalar;
 		uint32_t size;
 	};