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Scanner: Many int16 and float16 fixes, including performance.

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- fixes #1209, addresses most of #1187
- only query feature availability on seeing the feature
  (was doing it for every single token)
- correct case-sensitive checks for multi-character suffixes
This commit is contained in:
John Kessenich 2018-01-08 15:59:29 -07:00
parent c043aadd25
commit 9c6f8cc29b
2 changed files with 70 additions and 73 deletions
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4
Test/baseResults/120.frag.out
View File

@ -52,8 +52,10 @@ ERROR: 0:209: 'assign' : cannot convert from ' const float' to ' temp 4-compone
ERROR: 0:212: 'sampler2DRect' : Reserved word.
ERROR: 0:244: ':' : wrong operand types: no operation ':' exists that takes a left-hand operand of type ' global void' and a right operand of type ' const int' (or there is no acceptable conversion)
ERROR: 0:245: ':' : wrong operand types: no operation ':' exists that takes a left-hand operand of type ' const int' and a right operand of type ' global void' (or there is no acceptable conversion)
ERROR: 0:248: 'shader half float' : required extension not requested: GL_AMD_gpu_shader_half_float
ERROR: 0:248: 'half floating-point suffix' : not supported with this profile: none
ERROR: 0:248: '' : syntax error, unexpected IDENTIFIER, expecting COMMA or SEMICOLON
ERROR: 54 compilation errors. No code generated.
ERROR: 56 compilation errors. No code generated.
Shader version: 120

139
glslang/MachineIndependent/preprocessor/PpScanner.cpp
View File

@ -103,17 +103,6 @@ int TPpContext::lFloatConst(int len, int ch, TPpToken* ppToken)
{
bool HasDecimalOrExponent = false;
int isDouble = 0;
bool generateFloat16 = false;
bool acceptFloat16 = parseContext.intermediate.getSource() == EShSourceHlsl;
bool isFloat16 = false;
bool requireHF = false;
#ifdef AMD_EXTENSIONS
if (parseContext.extensionTurnedOn(E_GL_AMD_gpu_shader_half_float)) {
acceptFloat16 = true;
generateFloat16 = true;
requireHF = true;
}
#endif
const auto saveName = [&](int ch) {
if (len <= MaxTokenLength)
@ -182,7 +171,7 @@ int TPpContext::lFloatConst(int len, int ch, TPpToken* ppToken)
}
// Suffix:
bool isFloat16 = false;
if (ch == 'l' || ch == 'L') {
parseContext.doubleCheck(ppToken->loc, "double floating-point suffix");
if (! HasDecimalOrExponent)
@ -196,14 +185,14 @@ int TPpContext::lFloatConst(int len, int ch, TPpToken* ppToken)
saveName(ch2);
isDouble = 1;
}
} else if (acceptFloat16 && (ch == 'h' || ch == 'H')) {
} else if (ch == 'h' || ch == 'H') {
#ifdef AMD_EXTENSIONS
if (generateFloat16)
if (parseContext.intermediate.getSource() == EShSourceGlsl)
parseContext.float16Check(ppToken->loc, "half floating-point suffix");
#endif
if (!HasDecimalOrExponent)
parseContext.ppError(ppToken->loc, "float literal needs a decimal point or exponent", "", "");
if (requireHF) {
if (parseContext.intermediate.getSource() == EShSourceGlsl) {
int ch2 = getChar();
if (ch2 != 'f' && ch2 != 'F') {
ungetChar();
@ -211,11 +200,11 @@ int TPpContext::lFloatConst(int len, int ch, TPpToken* ppToken)
} else {
saveName(ch);
saveName(ch2);
isFloat16 = generateFloat16;
isFloat16 = true;
}
} else {
saveName(ch);
isFloat16 = generateFloat16;
isFloat16 = false;
}
} else if (ch == 'f' || ch == 'F') {
parseContext.profileRequires(ppToken->loc, EEsProfile, 300, nullptr, "floating-point suffix");
@ -333,18 +322,10 @@ int TPpContext::tStringInput::scan(TPpToken* ppToken)
int ch = 0;
int ii = 0;
unsigned long long ival = 0;
#ifdef AMD_EXTENSIONS
bool enableInt16 = pp->parseContext.version >= 450 && pp->parseContext.extensionTurnedOn(E_GL_AMD_gpu_shader_int16);
#endif
bool acceptHalf = pp->parseContext.intermediate.getSource() == EShSourceHlsl;
#ifdef AMD_EXTENSIONS
if (pp->parseContext.extensionTurnedOn(E_GL_AMD_gpu_shader_half_float))
acceptHalf = true;
#endif
const auto floatingPointChar = [&](int ch) { return ch == '.' || ch == 'e' || ch == 'E' ||
ch == 'f' || ch == 'F' ||
(acceptHalf && (ch == 'h' || ch == 'H')); };
ch == 'h' || ch == 'H'; };
ppToken->ival = 0;
ppToken->i64val = 0;
@ -461,22 +442,22 @@ int TPpContext::tStringInput::scan(TPpToken* ppToken)
ungetch();
#ifdef AMD_EXTENSIONS
if (enableInt16) {
int nextCh = getch();
if ((ch == 'u' && nextCh == 's') || (ch == 'U' && nextCh == 'S')) {
if (len < MaxTokenLength)
ppToken->name[len++] = (char)nextCh;
isInt16 = true;
} else
ungetch();
}
nextCh = getch();
if ((nextCh == 's' || nextCh == 'S') &&
pp->parseContext.intermediate.getSource() == EShSourceGlsl) {
if (len < MaxTokenLength)
ppToken->name[len++] = (char)nextCh;
isInt16 = true;
} else
ungetch();
#endif
} else if (ch == 'l' || ch == 'L') {
if (len < MaxTokenLength)
ppToken->name[len++] = (char)ch;
isInt64 = true;
#ifdef AMD_EXTENSIONS
} else if (enableInt16 && (ch == 's' || ch == 'S')) {
} else if ((ch == 's' || ch == 'S') &&
pp->parseContext.intermediate.getSource() == EShSourceGlsl) {
if (len < MaxTokenLength)
ppToken->name[len++] = (char)ch;
isInt16 = true;
@ -485,17 +466,21 @@ int TPpContext::tStringInput::scan(TPpToken* ppToken)
ungetch();
ppToken->name[len] = '\0';
if (isInt64) {
if (pp->parseContext.intermediate.getSource() == EShSourceGlsl) {
pp->parseContext.requireProfile(ppToken->loc, ~EEsProfile,
"64-bit hexadecimal literal");
pp->parseContext.profileRequires(ppToken->loc, ~EEsProfile, 0, E_GL_ARB_gpu_shader_int64,
"64-bit hexadecimal literal");
}
if (isInt64 && pp->parseContext.intermediate.getSource() == EShSourceGlsl) {
pp->parseContext.requireProfile(ppToken->loc, ~EEsProfile,
"64-bit hexadecimal literal");
pp->parseContext.profileRequires(ppToken->loc, ~EEsProfile, 0, E_GL_ARB_gpu_shader_int64,
"64-bit hexadecimal literal");
ppToken->i64val = ival;
return isUnsigned ? PpAtomConstUint64 : PpAtomConstInt64;
#ifdef AMD_EXTENSIONS
} else if (isInt16) {
if (pp->parseContext.intermediate.getSource() == EShSourceGlsl) {
pp->parseContext.requireProfile(ppToken->loc, ~EEsProfile,
"16-bit hexadecimal literal");
pp->parseContext.profileRequires(ppToken->loc, ~EEsProfile, 0, E_GL_AMD_gpu_shader_int16,
"16-bit hexadecimal literal");
}
ppToken->ival = (int)ival;
return isUnsigned ? PpAtomConstUint16 : PpAtomConstInt16;
#endif
@ -559,7 +544,7 @@ int TPpContext::tStringInput::scan(TPpToken* ppToken)
isUnsigned = true;
int nextCh = getch();
if ((ch == 'u' && nextCh == 'l') || (ch == 'U' && nextCh == 'L')) {
if (nextCh == 'l' || nextCh == 'L') {
if (len < MaxTokenLength)
ppToken->name[len++] = (char)nextCh;
isInt64 = true;
@ -567,22 +552,22 @@ int TPpContext::tStringInput::scan(TPpToken* ppToken)
ungetch();
#ifdef AMD_EXTENSIONS
if (enableInt16) {
int nextCh = getch();
if ((ch == 'u' && nextCh == 's') || (ch == 'U' && nextCh == 'S')) {
if (len < MaxTokenLength)
ppToken->name[len++] = (char)nextCh;
isInt16 = true;
} else
ungetch();
}
nextCh = getch();
if ((nextCh == 's' || nextCh == 'S') &&
pp->parseContext.intermediate.getSource() == EShSourceGlsl) {
if (len < MaxTokenLength)
ppToken->name[len++] = (char)nextCh;
isInt16 = true;
} else
ungetch();
#endif
} else if (ch == 'l' || ch == 'L') {
if (len < MaxTokenLength)
ppToken->name[len++] = (char)ch;
isInt64 = true;
#ifdef AMD_EXTENSIONS
} else if (enableInt16 && (ch == 's' || ch == 'S')) {
} else if ((ch == 's' || ch == 'S') &&
pp->parseContext.intermediate.getSource() == EShSourceGlsl) {
if (len < MaxTokenLength)
ppToken->name[len++] = (char)ch;
isInt16 = true;
@ -597,17 +582,21 @@ int TPpContext::tStringInput::scan(TPpToken* ppToken)
if (octalOverflow)
pp->parseContext.ppError(ppToken->loc, "octal literal too big", "", "");
if (isInt64) {
if (pp->parseContext.intermediate.getSource() == EShSourceGlsl) {
pp->parseContext.requireProfile(ppToken->loc, ~EEsProfile,
"64-bit octal literal");
pp->parseContext.profileRequires(ppToken->loc, ~EEsProfile, 0, E_GL_ARB_gpu_shader_int64,
"64-bit octal literal");
}
if (isInt64 && pp->parseContext.intermediate.getSource() == EShSourceGlsl) {
pp->parseContext.requireProfile(ppToken->loc, ~EEsProfile,
"64-bit octal literal");
pp->parseContext.profileRequires(ppToken->loc, ~EEsProfile, 0, E_GL_ARB_gpu_shader_int64,
"64-bit octal literal");
ppToken->i64val = ival;
return isUnsigned ? PpAtomConstUint64 : PpAtomConstInt64;
#ifdef AMD_EXTENSIONS
} else if (isInt16) {
if (pp->parseContext.intermediate.getSource() == EShSourceGlsl) {
pp->parseContext.requireProfile(ppToken->loc, ~EEsProfile,
"16-bit octal literal");
pp->parseContext.profileRequires(ppToken->loc, ~EEsProfile, 0, E_GL_AMD_gpu_shader_int16,
"16-bit octal literal");
}
ppToken->ival = (int)ival;
return isUnsigned ? PpAtomConstUint16 : PpAtomConstInt16;
#endif
@ -646,7 +635,7 @@ int TPpContext::tStringInput::scan(TPpToken* ppToken)
isUnsigned = true;
int nextCh = getch();
if ((ch == 'u' && nextCh == 'l') || (ch == 'U' && nextCh == 'L')) {
if (nextCh == 'l' || nextCh == 'L') {
if (len < MaxTokenLength)
ppToken->name[len++] = (char)nextCh;
isInt64 = true;
@ -654,22 +643,22 @@ int TPpContext::tStringInput::scan(TPpToken* ppToken)
ungetch();
#ifdef AMD_EXTENSIONS
if (enableInt16) {
int nextCh = getch();
if ((ch == 'u' && nextCh == 's') || (ch == 'U' && nextCh == 'S')) {
if (len < MaxTokenLength)
ppToken->name[len++] = (char)nextCh;
isInt16 = true;
} else
ungetch();
}
nextCh = getch();
if ((nextCh == 's' || nextCh == 'S') &&
pp->parseContext.intermediate.getSource() == EShSourceGlsl) {
if (len < MaxTokenLength)
ppToken->name[len++] = (char)nextCh;
isInt16 = true;
} else
ungetch();
#endif
} else if (ch == 'l' || ch == 'L') {
if (len < MaxTokenLength)
ppToken->name[len++] = (char)ch;
isInt64 = true;
#ifdef AMD_EXTENSIONS
} else if (enableInt16 && (ch == 's' || ch == 'S')) {
} else if ((ch == 's' || ch == 'S') &&
pp->parseContext.intermediate.getSource() == EShSourceGlsl) {
if (len < MaxTokenLength)
ppToken->name[len++] = (char)ch;
isInt16 = true;
@ -715,6 +704,12 @@ int TPpContext::tStringInput::scan(TPpToken* ppToken)
return isUnsigned ? PpAtomConstUint64 : PpAtomConstInt64;
#ifdef AMD_EXTENSIONS
} else if (isInt16) {
if (pp->parseContext.intermediate.getSource() == EShSourceGlsl) {
pp->parseContext.requireProfile(ppToken->loc, ~EEsProfile,
"16-bit literal");
pp->parseContext.profileRequires(ppToken->loc, ~EEsProfile, 0, E_GL_AMD_gpu_shader_int16,
"16-bit literal");
}
ppToken->ival = (int)ival;
return isUnsigned ? PpAtomConstUint16 : PpAtomConstInt16;
#endif