aboutsummaryrefslogtreecommitdiffstats
path: root/lib/AsmParser
diff options
context:
space:
mode:
authorChris Lattner <sabre@nondot.org>2005-12-21 17:53:02 +0000
committerChris Lattner <sabre@nondot.org>2005-12-21 17:53:02 +0000
commitf1f03dfc66bf9c9626216afd370a09f80e8b76da (patch)
treed2d2d6b442789e650b9a1975256455fafcccbc98 /lib/AsmParser
parent90b02b08a50ea45afad4f5499b288d1434061481 (diff)
downloadexternal_llvm-f1f03dfc66bf9c9626216afd370a09f80e8b76da.zip
external_llvm-f1f03dfc66bf9c9626216afd370a09f80e8b76da.tar.gz
external_llvm-f1f03dfc66bf9c9626216afd370a09f80e8b76da.tar.bz2
Implement Regression/Assembler/2005-12-21-ZeroInitVector.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24903 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/AsmParser')
-rw-r--r--lib/AsmParser/ParserInternals.h8
-rw-r--r--lib/AsmParser/llvmAsmParser.y6
2 files changed, 13 insertions, 1 deletions
diff --git a/lib/AsmParser/ParserInternals.h b/lib/AsmParser/ParserInternals.h
index b21dea7..6f747c7 100644
--- a/lib/AsmParser/ParserInternals.h
+++ b/lib/AsmParser/ParserInternals.h
@@ -82,7 +82,7 @@ static inline void ThrowException(const std::string &message,
struct ValID {
enum {
NumberVal, NameVal, ConstSIntVal, ConstUIntVal, ConstFPVal, ConstNullVal,
- ConstUndefVal, ConstantVal,
+ ConstUndefVal, ConstZeroVal, ConstantVal,
} Type;
union {
@@ -122,6 +122,10 @@ struct ValID {
ValID D; D.Type = ConstUndefVal; return D;
}
+ static ValID createZeroInit() {
+ ValID D; D.Type = ConstZeroVal; return D;
+ }
+
static ValID create(Constant *Val) {
ValID D; D.Type = ConstantVal; D.ConstantValue = Val; return D;
}
@@ -145,6 +149,7 @@ struct ValID {
case ConstFPVal : return ftostr(ConstPoolFP);
case ConstNullVal : return "null";
case ConstUndefVal : return "undef";
+ case ConstZeroVal : return "zeroinitializer";
case ConstUIntVal :
case ConstSIntVal : return std::string("%") + itostr(ConstPool64);
case ConstantVal:
@@ -168,6 +173,7 @@ struct ValID {
case ConstFPVal: return ConstPoolFP < V.ConstPoolFP;
case ConstNullVal: return false;
case ConstUndefVal: return false;
+ case ConstZeroVal: return false;
case ConstantVal: return ConstantValue < V.ConstantValue;
default: assert(0 && "Unknown value type!"); return false;
}
diff --git a/lib/AsmParser/llvmAsmParser.y b/lib/AsmParser/llvmAsmParser.y
index 549a96d..dfaeb83 100644
--- a/lib/AsmParser/llvmAsmParser.y
+++ b/lib/AsmParser/llvmAsmParser.y
@@ -303,6 +303,9 @@ static Value *getValNonImprovising(const Type *Ty, const ValID &D) {
case ValID::ConstUndefVal: // Is it an undef value?
return UndefValue::get(Ty);
+ case ValID::ConstZeroVal: // Is it a zero value?
+ return Constant::getNullValue(Ty);
+
case ValID::ConstantVal: // Fully resolved constant?
if (D.ConstantValue->getType() != Ty)
ThrowException("Constant expression type different from required type!");
@@ -1816,6 +1819,9 @@ ConstValueRef : ESINT64VAL { // A reference to a direct constant
| UNDEF {
$$ = ValID::createUndef();
}
+ | ZEROINITIALIZER { // A vector zero constant.
+ $$ = ValID::createZeroInit();
+ }
| '<' ConstVector '>' { // Nonempty unsized packed vector
const Type *ETy = (*$2)[0]->getType();
int NumElements = $2->size();