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Use constant's location for reporting errors in parsing of hex constant 

Before this the line following the error would be reported in some cases.

PiperOrigin-RevId: 270778722
This commit is contained in:
Jacques Pienaar 2019-09-23 15:51:11 -07:00 committed by A. Unique TensorFlower
parent 98d1d3fc43
commit 4a862fbd63
2 changed files with 20 additions and 13 deletions
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31
mlir/lib/Parser/Parser.cpp
View File

@ -1191,6 +1191,7 @@ Attribute Parser::parseDecOrHexAttr(Type type, bool isNegative) {
// Remember if the literal is hexadecimal.
StringRef spelling = getToken().getSpelling();
auto loc = state.curToken.getLoc();
bool isHex = spelling.size() > 1 && spelling[1] == 'x';
consumeToken(Token::integer);
@ -1202,16 +1203,19 @@ Attribute Parser::parseDecOrHexAttr(Type type, bool isNegative) {
return nullptr;
}
// Hexadecimal representation of float literals is not supported for bfloat16.
// When supported, the literal should be unsigned.
auto floatType = type.dyn_cast<FloatType>();
if (floatType && !type.isBF16()) {
if (isNegative) {
emitError("hexadecimal float literal should not have a leading minus");
return nullptr;
}
if (auto floatType = type.dyn_cast<FloatType>()) {
// TODO(zinenko): Update once hex format for bfloat16 is supported.
if (type.isBF16())
return emitError(loc,
"hexadecimal float literal not supported for bfloat16"),
nullptr;
if (isNegative)
return emitError(
loc,
"hexadecimal float literal should not have a leading minus"),
nullptr;
if (!isHex) {
emitError("unexpected decimal integer literal for a float attribute")
emitError(loc, "unexpected decimal integer literal for a float attribute")
.attachNote()
<< "add a trailing dot to make the literal a float";
return nullptr;
@ -1222,17 +1226,20 @@ Attribute Parser::parseDecOrHexAttr(Type type, bool isNegative) {
}
if (!type.isIntOrIndex())
return (emitError("integer literal not valid for specified type"), nullptr);
return emitError(loc, "integer literal not valid for specified type"),
nullptr;
// Parse the integer literal.
int width = type.isIndex() ? 64 : type.getIntOrFloatBitWidth();
APInt apInt(width, *val, isNegative);
if (apInt != *val)
return (emitError("integer constant out of range for attribute"), nullptr);
return emitError(loc, "integer constant out of range for attribute"),
nullptr;
// Otherwise construct an integer attribute.
if (isNegative ? (int64_t)-val.getValue() >= 0 : (int64_t)val.getValue() < 0)
return (emitError("integer constant out of range for attribute"), nullptr);
return emitError(loc, "integer constant out of range for attribute"),
nullptr;
return builder.getIntegerAttr(type, isNegative ? -apInt : apInt);
}

2
mlir/test/IR/invalid.mlir
View File

@ -1077,7 +1077,7 @@ func @invalid_region_dominance() {
// -----
func @hexadecimal_bf16() {
// expected-error @+1 {{integer literal not valid for specified type}}
// expected-error @+1 {{hexadecimal float literal not supported for bfloat16}}
"foo"() {value = 0xffff : bf16} : () -> ()
}