blob: 8e3f95f67711808eb2707220dfa01381d9f39e9a [file] [log] [blame]
//
// Copyright (c) 2014 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
// TypeTracking_test.cpp:
// Test for tracking types resulting from math operations, including their
// precision.
//
#include "angle_gl.h"
#include "gtest/gtest.h"
#include "GLSLANG/ShaderLang.h"
#include "compiler/translator/TranslatorESSL.h"
using namespace sh;
class TypeTrackingTest : public testing::Test
{
public:
TypeTrackingTest() {}
protected:
void SetUp() override
{
ShBuiltInResources resources;
InitBuiltInResources(&resources);
resources.FragmentPrecisionHigh = 1;
mTranslator = new TranslatorESSL(GL_FRAGMENT_SHADER, SH_GLES3_1_SPEC);
ASSERT_TRUE(mTranslator->Init(resources));
}
void TearDown() override { delete mTranslator; }
void compile(const std::string& shaderString)
{
const char *shaderStrings[] = { shaderString.c_str() };
bool compilationSuccess = mTranslator->compile(shaderStrings, 1, SH_INTERMEDIATE_TREE);
TInfoSink &infoSink = mTranslator->getInfoSink();
mInfoLog = RemoveSymbolIdsFromInfoLog(infoSink.info.c_str());
if (!compilationSuccess)
FAIL() << "Shader compilation failed " << mInfoLog;
}
bool foundErrorInIntermediateTree() const
{
return foundInIntermediateTree("ERROR:");
}
bool foundInIntermediateTree(const char* stringToFind) const
{
return mInfoLog.find(stringToFind) != std::string::npos;
}
private:
// Remove symbol ids from info log - the tests don't care about them.
static std::string RemoveSymbolIdsFromInfoLog(const char *infoLog)
{
std::string filteredLog(infoLog);
size_t idPrefixPos = 0u;
do
{
idPrefixPos = filteredLog.find(" (symbol id");
if (idPrefixPos != std::string::npos)
{
size_t idSuffixPos = filteredLog.find(")", idPrefixPos);
filteredLog.erase(idPrefixPos, idSuffixPos - idPrefixPos + 1u);
}
} while (idPrefixPos != std::string::npos);
return filteredLog;
}
TranslatorESSL *mTranslator;
std::string mInfoLog;
};
TEST_F(TypeTrackingTest, FunctionPrototype)
{
const std::string &shaderString =
"precision mediump float;\n"
"float fun(float a);\n"
"uniform float f;\n"
"void main() {\n"
" float ff = fun(f);\n"
" gl_FragColor = vec4(ff);\n"
"}\n"
"float fun(float a) {\n"
" return a * 2.0;\n"
"}\n";
compile(shaderString);
ASSERT_FALSE(foundErrorInIntermediateTree());
ASSERT_TRUE(foundInIntermediateTree("Function Prototype: fun"));
}
TEST_F(TypeTrackingTest, BuiltInFunctionResultPrecision)
{
const std::string &shaderString =
"precision mediump float;\n"
"uniform float f;\n"
"void main() {\n"
" float ff = sin(f);\n"
" gl_FragColor = vec4(ff);\n"
"}\n";
compile(shaderString);
ASSERT_FALSE(foundErrorInIntermediateTree());
ASSERT_TRUE(foundInIntermediateTree("sin (mediump float)"));
}
TEST_F(TypeTrackingTest, BinaryMathResultPrecision)
{
const std::string &shaderString =
"precision mediump float;\n"
"uniform float f;\n"
"void main() {\n"
" float ff = f * 0.5;\n"
" gl_FragColor = vec4(ff);\n"
"}\n";
compile(shaderString);
ASSERT_FALSE(foundErrorInIntermediateTree());
ASSERT_TRUE(foundInIntermediateTree("multiply (mediump float)"));
}
TEST_F(TypeTrackingTest, BuiltInVecFunctionResultTypeAndPrecision)
{
const std::string &shaderString =
"precision mediump float;\n"
"uniform vec2 a;\n"
"void main() {\n"
" float b = length(a);\n"
" float c = dot(a, vec2(0.5));\n"
" float d = distance(vec2(0.5), a);\n"
" gl_FragColor = vec4(b, c, d, 1.0);\n"
"}\n";
compile(shaderString);
ASSERT_FALSE(foundErrorInIntermediateTree());
ASSERT_TRUE(foundInIntermediateTree("length (mediump float)"));
ASSERT_TRUE(foundInIntermediateTree("dot product (mediump float)"));
ASSERT_TRUE(foundInIntermediateTree("distance (mediump float)"));
}
TEST_F(TypeTrackingTest, BuiltInMatFunctionResultTypeAndPrecision)
{
const std::string &shaderString =
"#version 300 es\n"
"precision mediump float;\n"
"out vec4 my_FragColor;\n"
"uniform mat4 m;\n"
"void main() {\n"
" mat3x2 tmp32 = mat3x2(m);\n"
" mat2x3 tmp23 = mat2x3(m);\n"
" mat4x2 tmp42 = mat4x2(m);\n"
" mat2x4 tmp24 = mat2x4(m);\n"
" mat4x3 tmp43 = mat4x3(m);\n"
" mat3x4 tmp34 = mat3x4(m);\n"
" my_FragColor = vec4(tmp32[2][1] * tmp23[1][2], tmp42[3][1] * tmp24[1][3], tmp43[3][2] * tmp34[2][3], 1.0);\n"
"}\n";
compile(shaderString);
ASSERT_FALSE(foundErrorInIntermediateTree());
ASSERT_TRUE(foundInIntermediateTree("Construct (mediump 2X3 matrix of float)"));
ASSERT_TRUE(foundInIntermediateTree("Construct (mediump 3X2 matrix of float)"));
ASSERT_TRUE(foundInIntermediateTree("Construct (mediump 2X4 matrix of float)"));
ASSERT_TRUE(foundInIntermediateTree("Construct (mediump 4X2 matrix of float)"));
ASSERT_TRUE(foundInIntermediateTree("Construct (mediump 3X4 matrix of float)"));
ASSERT_TRUE(foundInIntermediateTree("Construct (mediump 4X3 matrix of float)"));
}
TEST_F(TypeTrackingTest, BuiltInFunctionChoosesHigherPrecision)
{
const std::string &shaderString =
"precision lowp float;\n"
"uniform mediump vec2 a;\n"
"uniform lowp vec2 b;\n"
"void main() {\n"
" float c = dot(a, b);\n"
" float d = distance(b, a);\n"
" gl_FragColor = vec4(c, d, 0.0, 1.0);\n"
"}\n";
compile(shaderString);
ASSERT_FALSE(foundErrorInIntermediateTree());
ASSERT_TRUE(foundInIntermediateTree("dot product (mediump float)"));
ASSERT_TRUE(foundInIntermediateTree("distance (mediump float)"));
}
TEST_F(TypeTrackingTest, BuiltInBoolFunctionResultType)
{
const std::string &shaderString =
"uniform bvec4 bees;\n"
"void main() {\n"
" bool b = any(bees);\n"
" bool c = all(bees);\n"
" bvec4 d = not(bees);\n"
" gl_FragColor = vec4(b ? 1.0 : 0.0, c ? 1.0 : 0.0, d.x ? 1.0 : 0.0, 1.0);\n"
"}\n";
compile(shaderString);
ASSERT_FALSE(foundErrorInIntermediateTree());
ASSERT_TRUE(foundInIntermediateTree("any (bool)"));
ASSERT_TRUE(foundInIntermediateTree("all (bool)"));
ASSERT_TRUE(foundInIntermediateTree("component-wise not (4-component vector of bool)"));
}
TEST_F(TypeTrackingTest, BuiltInVecToBoolFunctionResultType)
{
const std::string &shaderString =
"precision mediump float;\n"
"uniform vec2 apples;\n"
"uniform vec2 oranges;\n"
"uniform ivec2 foo;\n"
"uniform ivec2 bar;\n"
"void main() {\n"
" bvec2 a = lessThan(apples, oranges);\n"
" bvec2 b = greaterThan(foo, bar);\n"
" gl_FragColor = vec4(any(a) ? 1.0 : 0.0, any(b) ? 1.0 : 0.0, 0.0, 1.0);\n"
"}\n";
compile(shaderString);
ASSERT_FALSE(foundErrorInIntermediateTree());
ASSERT_TRUE(foundInIntermediateTree("component-wise less than (2-component vector of bool)"));
ASSERT_TRUE(
foundInIntermediateTree("component-wise greater than (2-component vector of bool)"));
}
TEST_F(TypeTrackingTest, Texture2DResultTypeAndPrecision)
{
// ESSL spec section 4.5.3: sampler2D and samplerCube are lowp by default
// ESSL spec section 8: For the texture functions, the precision of the return type matches the precision of the sampler type.
const std::string &shaderString =
"precision mediump float;\n"
"uniform sampler2D s;\n"
"uniform vec2 a;\n"
"void main() {\n"
" vec4 c = texture2D(s, a);\n"
" gl_FragColor = c;\n"
"}\n";
compile(shaderString);
ASSERT_FALSE(foundErrorInIntermediateTree());
ASSERT_TRUE(foundInIntermediateTree("texture2D (lowp 4-component vector of float)"));
}
TEST_F(TypeTrackingTest, TextureCubeResultTypeAndPrecision)
{
// ESSL spec section 4.5.3: sampler2D and samplerCube are lowp by default
// ESSL spec section 8: For the texture functions, the precision of the return type matches the precision of the sampler type.
const std::string &shaderString =
"precision mediump float;\n"
"uniform samplerCube sc;\n"
"uniform vec3 a;\n"
"void main() {\n"
" vec4 c = textureCube(sc, a);\n"
" gl_FragColor = c;\n"
"}\n";
compile(shaderString);
ASSERT_FALSE(foundErrorInIntermediateTree());
ASSERT_TRUE(foundInIntermediateTree("textureCube (lowp 4-component vector of float)"));
}
TEST_F(TypeTrackingTest, TextureSizeResultTypeAndPrecision)
{
// ESSL 3.0 spec section 8: textureSize has predefined precision highp
const std::string &shaderString =
"#version 300 es\n"
"precision mediump float;\n"
"out vec4 my_FragColor;\n"
"uniform sampler2D s;\n"
"void main() {\n"
" ivec2 size = textureSize(s, 0);\n"
" if (size.x > 100) {\n"
" my_FragColor = vec4(0.0, 1.0, 0.0, 1.0);\n"
" } else {\n"
" my_FragColor = vec4(1.0, 0.0, 0.0, 1.0);\n"
" }\n"
"}\n";
compile(shaderString);
ASSERT_FALSE(foundErrorInIntermediateTree());
ASSERT_TRUE(foundInIntermediateTree("textureSize (highp 2-component vector of int)"));
}
TEST_F(TypeTrackingTest, BuiltInConstructorResultTypeAndPrecision)
{
const std::string &shaderString =
"precision mediump float;\n"
"uniform float u1;\n"
"uniform float u2;\n"
"uniform float u3;\n"
"uniform float u4;\n"
"void main() {\n"
" vec4 a = vec4(u1, u2, u3, u4);\n"
" gl_FragColor = a;\n"
"}\n";
compile(shaderString);
ASSERT_FALSE(foundErrorInIntermediateTree());
ASSERT_TRUE(foundInIntermediateTree("Construct (mediump 4-component vector of float)"));
}
TEST_F(TypeTrackingTest, StructConstructorResultNoPrecision)
{
const std::string &shaderString =
"precision mediump float;\n"
"uniform vec4 u1;\n"
"uniform vec4 u2;\n"
"struct S { highp vec4 a; highp vec4 b; };\n"
"void main() {\n"
" S s = S(u1, u2);\n"
" gl_FragColor = s.a;\n"
"}\n";
compile(shaderString);
ASSERT_FALSE(foundErrorInIntermediateTree());
ASSERT_TRUE(foundInIntermediateTree("Construct (structure)"));
}
TEST_F(TypeTrackingTest, PackResultTypeAndPrecision)
{
// ESSL 3.0 spec section 8.4: pack functions have predefined precision highp
const std::string &shaderString =
"#version 300 es\n"
"precision mediump float;\n"
"precision mediump int;\n"
"uniform vec2 uv;\n"
"out vec4 my_FragColor;\n"
"void main() {\n"
" uint u0 = packSnorm2x16(uv);\n"
" uint u1 = packUnorm2x16(uv);\n"
" uint u2 = packHalf2x16(uv);\n"
" if (u0 + u1 + u2 > 100u) {\n"
" my_FragColor = vec4(0.0, 1.0, 0.0, 1.0);\n"
" } else {\n"
" my_FragColor = vec4(1.0, 0.0, 0.0, 1.0);\n"
" }\n"
"}\n";
compile(shaderString);
ASSERT_FALSE(foundErrorInIntermediateTree());
ASSERT_TRUE(foundInIntermediateTree("packSnorm2x16 (highp uint)"));
ASSERT_TRUE(foundInIntermediateTree("packUnorm2x16 (highp uint)"));
ASSERT_TRUE(foundInIntermediateTree("packHalf2x16 (highp uint)"));
}
TEST_F(TypeTrackingTest, UnpackNormResultTypeAndPrecision)
{
// ESSL 3.0 spec section 8.4: unpack(S/U)norm2x16 has predefined precision highp
const std::string &shaderString =
"#version 300 es\n"
"precision mediump float;\n"
"precision mediump int;\n"
"uniform uint uu;\n"
"out vec4 my_FragColor;\n"
"void main() {\n"
" vec2 v0 = unpackSnorm2x16(uu);\n"
" vec2 v1 = unpackUnorm2x16(uu);\n"
" if (v0.x * v1.x > 1.0) {\n"
" my_FragColor = vec4(0.0, 1.0, 0.0, 1.0);\n"
" } else {\n"
" my_FragColor = vec4(1.0, 0.0, 0.0, 1.0);\n"
" }\n"
"}\n";
compile(shaderString);
ASSERT_FALSE(foundErrorInIntermediateTree());
ASSERT_TRUE(foundInIntermediateTree("unpackSnorm2x16 (highp 2-component vector of float)"));
ASSERT_TRUE(foundInIntermediateTree("unpackUnorm2x16 (highp 2-component vector of float)"));
}
TEST_F(TypeTrackingTest, UnpackHalfResultTypeAndPrecision)
{
// ESSL 3.0 spec section 8.4: unpackHalf2x16 has predefined precision mediump
const std::string &shaderString =
"#version 300 es\n"
"precision highp float;\n"
"precision highp int;\n"
"uniform uint uu;\n"
"out vec4 my_FragColor;\n"
"void main() {\n"
" vec2 v = unpackHalf2x16(uu);\n"
" if (v.x > 1.0) {\n"
" my_FragColor = vec4(0.0, 1.0, 0.0, 1.0);\n"
" } else {\n"
" my_FragColor = vec4(1.0, 0.0, 0.0, 1.0);\n"
" }\n"
"}\n";
compile(shaderString);
ASSERT_FALSE(foundErrorInIntermediateTree());
ASSERT_TRUE(foundInIntermediateTree("unpackHalf2x16 (mediump 2-component vector of float)"));
}
TEST_F(TypeTrackingTest, BuiltInAbsSignFunctionFloatResultTypeAndPrecision)
{
const std::string &shaderString =
"precision mediump float;\n"
"uniform float fval1;\n"
"void main() {\n"
" float fval2 = abs(fval1);\n"
" float fval3 = sign(fval1);\n"
" gl_FragColor = vec4(fval1, 0.0, 0.0, 1.0); \n"
"}\n";
compile(shaderString);
ASSERT_FALSE(foundErrorInIntermediateTree());
ASSERT_TRUE(foundInIntermediateTree("abs (mediump float)"));
ASSERT_TRUE(foundInIntermediateTree("sign (mediump float)"));
}
TEST_F(TypeTrackingTest, BuiltInAbsSignFunctionIntResultTypeAndPrecision)
{
const std::string &shaderString =
"#version 300 es\n"
"precision mediump float;\n"
"precision mediump int;\n"
"uniform int ival1;\n"
"out vec4 my_FragColor;\n"
"void main() {\n"
" int ival2 = abs(ival1);\n"
" int ival3 = sign(ival1);\n"
" my_FragColor = vec4(0.0, 0.0, 0.0, 1.0); \n"
"}\n";
compile(shaderString);
ASSERT_FALSE(foundErrorInIntermediateTree());
ASSERT_TRUE(foundInIntermediateTree("abs (mediump int)"));
ASSERT_TRUE(foundInIntermediateTree("sign (mediump int)"));
}
TEST_F(TypeTrackingTest, BuiltInFloatBitsToIntResultTypeAndPrecision)
{
// ESSL 3.00 section 8.3: floatBitsTo(U)int returns a highp value.
const std::string &shaderString =
"#version 300 es\n"
"precision mediump float;\n"
"precision mediump int;\n"
"uniform float f;\n"
"out vec4 my_FragColor;\n"
"void main() {\n"
" int i = floatBitsToInt(f);\n"
" uint u = floatBitsToUint(f);\n"
" my_FragColor = vec4(0.0, 0.0, 0.0, 1.0); \n"
"}\n";
compile(shaderString);
ASSERT_FALSE(foundErrorInIntermediateTree());
ASSERT_TRUE(foundInIntermediateTree("floatBitsToInt (highp int)"));
ASSERT_TRUE(foundInIntermediateTree("floatBitsToUint (highp uint)"));
}
TEST_F(TypeTrackingTest, BuiltInIntBitsToFloatResultTypeAndPrecision)
{
// ESSL 3.00 section 8.3: (u)intBitsToFloat returns a highp value.
const std::string &shaderString =
"#version 300 es\n"
"precision mediump float;\n"
"precision mediump int;\n"
"uniform int i;\n"
"uniform uint u;\n"
"out vec4 my_FragColor;\n"
"void main() {\n"
" float f1 = intBitsToFloat(i);\n"
" float f2 = uintBitsToFloat(u);\n"
" my_FragColor = vec4(f1, f2, 0.0, 1.0); \n"
"}\n";
compile(shaderString);
ASSERT_FALSE(foundErrorInIntermediateTree());
ASSERT_TRUE(foundInIntermediateTree("intBitsToFloat (highp float)"));
ASSERT_TRUE(foundInIntermediateTree("uintBitsToFloat (highp float)"));
}
// Test that bitfieldExtract returns a precision consistent with its "value" parameter.
TEST_F(TypeTrackingTest, BuiltInBitfieldExtractResultTypeAndPrecision)
{
const std::string &shaderString =
"#version 310 es\n"
"precision mediump float;\n"
"uniform mediump int i;\n"
"uniform highp uint u;\n"
"uniform lowp int offset;\n"
"uniform highp int bits;\n"
"out vec4 my_FragColor;\n"
"void main() {\n"
" lowp int i2 = bitfieldExtract(i, offset, bits);\n"
" lowp uint u2 = bitfieldExtract(u, offset, bits);\n"
" my_FragColor = vec4(i2, u2, 0.0, 1.0); \n"
"}\n";
compile(shaderString);
ASSERT_FALSE(foundErrorInIntermediateTree());
ASSERT_TRUE(foundInIntermediateTree("bitfieldExtract (mediump int)"));
ASSERT_TRUE(foundInIntermediateTree("bitfieldExtract (highp uint)"));
}
// Test that signed bitfieldInsert returns a precision consistent with its "base/insert" parameters.
TEST_F(TypeTrackingTest, BuiltInBitfieldInsertResultTypeAndPrecision)
{
const std::string &shaderString =
"#version 310 es\n"
"precision mediump float;\n"
"uniform lowp int iBase;\n"
"uniform mediump int iInsert;\n"
"uniform highp uint uBase;\n"
"uniform mediump uint uInsert;\n"
"uniform highp int offset;\n"
"uniform highp int bits;\n"
"out vec4 my_FragColor;\n"
"void main() {\n"
" lowp int i = bitfieldInsert(iBase, iInsert, offset, bits);\n"
" lowp uint u = bitfieldInsert(uBase, uInsert, offset, bits);\n"
" my_FragColor = vec4(i, u, 0.0, 1.0); \n"
"}\n";
compile(shaderString);
ASSERT_FALSE(foundErrorInIntermediateTree());
ASSERT_TRUE(foundInIntermediateTree("bitfieldInsert (mediump int)"));
ASSERT_TRUE(foundInIntermediateTree("bitfieldInsert (highp uint)"));
}
// Test that signed bitfieldInsert returns a precision consistent with its "base/insert" parameters.
// Another variation on parameter precisions.
TEST_F(TypeTrackingTest, BuiltInBitfieldInsertResultTypeAndPrecision2)
{
const std::string &shaderString =
"#version 310 es\n"
"precision mediump float;\n"
"uniform highp int iBase;\n"
"uniform mediump int iInsert;\n"
"uniform lowp uint uBase;\n"
"uniform mediump uint uInsert;\n"
"uniform lowp int offset;\n"
"uniform lowp int bits;\n"
"out vec4 my_FragColor;\n"
"void main() {\n"
" lowp int i = bitfieldInsert(iBase, iInsert, offset, bits);\n"
" lowp uint u = bitfieldInsert(uBase, uInsert, offset, bits);\n"
" my_FragColor = vec4(i, u, 0.0, 1.0); \n"
"}\n";
compile(shaderString);
ASSERT_FALSE(foundErrorInIntermediateTree());
ASSERT_TRUE(foundInIntermediateTree("bitfieldInsert (highp int)"));
ASSERT_TRUE(foundInIntermediateTree("bitfieldInsert (mediump uint)"));
}
// Test that bitfieldReverse always results in highp precision.
TEST_F(TypeTrackingTest, BuiltInBitfieldReversePrecision)
{
const std::string &shaderString =
"#version 310 es\n"
"precision mediump float;\n"
"uniform lowp uint u;\n"
"uniform mediump int i;\n"
"out vec4 my_FragColor;\n"
"void main() {\n"
" lowp uint u2 = bitfieldReverse(u);\n"
" lowp int i2 = bitfieldReverse(i);\n"
" my_FragColor = vec4(u2, i2, 0.0, 1.0); \n"
"}\n";
compile(shaderString);
ASSERT_FALSE(foundErrorInIntermediateTree());
ASSERT_TRUE(foundInIntermediateTree("bitfieldReverse (highp uint)"));
ASSERT_TRUE(foundInIntermediateTree("bitfieldReverse (highp int)"));
}
// Test that bitCount always results in lowp precision integer.
TEST_F(TypeTrackingTest, BuiltInBitCountTypeAndPrecision)
{
const std::string &shaderString =
"#version 310 es\n"
"precision mediump float;\n"
"uniform highp uint u;\n"
"uniform mediump int i;\n"
"out vec4 my_FragColor;\n"
"void main() {\n"
" highp int count1 = bitCount(u);\n"
" highp int count2 = bitCount(i);\n"
" my_FragColor = vec4(count1, count2, 0.0, 1.0); \n"
"}\n";
compile(shaderString);
ASSERT_FALSE(foundErrorInIntermediateTree());
ASSERT_TRUE(foundInIntermediateTree("bitCount (lowp int)"));
ASSERT_FALSE(foundInIntermediateTree("bitCount (lowp uint)"));
}
// Test that findLSB always results in a lowp precision integer.
TEST_F(TypeTrackingTest, BuiltInFindLSBTypeAndPrecision)
{
const std::string &shaderString =
"#version 310 es\n"
"precision mediump float;\n"
"uniform highp uint u;\n"
"uniform mediump int i;\n"
"out vec4 my_FragColor;\n"
"void main() {\n"
" highp int index1 = findLSB(u);\n"
" highp int index2 = findLSB(i);\n"
" my_FragColor = vec4(index1, index2, 0.0, 1.0); \n"
"}\n";
compile(shaderString);
ASSERT_FALSE(foundErrorInIntermediateTree());
ASSERT_TRUE(foundInIntermediateTree("findLSB (lowp int)"));
ASSERT_FALSE(foundInIntermediateTree("findLSB (lowp uint)"));
}
// Test that findMSB always results in a lowp precision integer.
TEST_F(TypeTrackingTest, BuiltInFindMSBTypeAndPrecision)
{
const std::string &shaderString =
"#version 310 es\n"
"precision mediump float;\n"
"uniform highp uint u;\n"
"uniform mediump int i;\n"
"out vec4 my_FragColor;\n"
"void main() {\n"
" highp int index1 = findMSB(u);\n"
" highp int index2 = findMSB(i);\n"
" my_FragColor = vec4(index1, index2, 0.0, 1.0); \n"
"}\n";
compile(shaderString);
ASSERT_FALSE(foundErrorInIntermediateTree());
ASSERT_TRUE(foundInIntermediateTree("findMSB (lowp int)"));
ASSERT_FALSE(foundInIntermediateTree("findMSB (lowp uint)"));
}
// Test that uaddCarry always results in highp precision.
TEST_F(TypeTrackingTest, BuiltInUaddCarryPrecision)
{
const std::string &shaderString =
"#version 310 es\n"
"precision mediump float;\n"
"uniform mediump uvec2 x;\n"
"uniform mediump uvec2 y;\n"
"out vec4 my_FragColor;\n"
"void main() {\n"
" lowp uvec2 carry;\n"
" mediump uvec2 result = uaddCarry(x, y, carry);\n"
" my_FragColor = vec4(result.x, carry.y, 0.0, 1.0); \n"
"}\n";
compile(shaderString);
ASSERT_FALSE(foundErrorInIntermediateTree());
ASSERT_TRUE(foundInIntermediateTree("uaddCarry (highp 2-component vector of uint)"));
}
// Test that usubBorrow always results in highp precision.
TEST_F(TypeTrackingTest, BuiltInUsubBorrowPrecision)
{
const std::string &shaderString =
"#version 310 es\n"
"precision mediump float;\n"
"uniform mediump uvec2 x;\n"
"uniform mediump uvec2 y;\n"
"out vec4 my_FragColor;\n"
"void main() {\n"
" lowp uvec2 borrow;\n"
" mediump uvec2 result = usubBorrow(x, y, borrow);\n"
" my_FragColor = vec4(result.x, borrow.y, 0.0, 1.0); \n"
"}\n";
compile(shaderString);
ASSERT_FALSE(foundErrorInIntermediateTree());
ASSERT_TRUE(foundInIntermediateTree("usubBorrow (highp 2-component vector of uint)"));
}