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It is totally unacceptable to print out (literally) millions of zeros when

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compiling 129.compress... so don't!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11649 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2004-02-20 05:49:22 +00:00
parent a8032090aa
commit f358c5ad15
2 changed files with 26 additions and 4 deletions
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15
lib/Target/CBackend/CBackend.cpp
View File

@ -728,10 +728,21 @@ bool CWriter::doInitialization(Module &M) {
// this, however, occurs when the variable has weak linkage. In this // this, however, occurs when the variable has weak linkage. In this
// case, the assembler will complain about the variable being both weak // case, the assembler will complain about the variable being both weak
// and common, so we disable this optimization. // and common, so we disable this optimization.
if (!I->getInitializer()->isNullValue() || if (!I->getInitializer()->isNullValue()) {
I->hasWeakLinkage()) {
Out << " = " ; Out << " = " ;
writeOperand(I->getInitializer()); writeOperand(I->getInitializer());
} else if (I->hasWeakLinkage()) {
// We have to specify an initializer, but it doesn't have to be
// complete. If the value is an aggregate, print out { 0 }, and let
// the compiler figure out the rest of the zeros.
Out << " = " ;
if (isa<StructType>(I->getInitializer()->getType()) ||
isa<ArrayType>(I->getInitializer()->getType())) {
Out << "{ 0 }";
} else {
// Just print it out normally.
writeOperand(I->getInitializer());
}
} }
Out << ";\n"; Out << ";\n";
} }

15
lib/Target/CBackend/Writer.cpp
View File

@ -728,10 +728,21 @@ bool CWriter::doInitialization(Module &M) {
// this, however, occurs when the variable has weak linkage. In this // this, however, occurs when the variable has weak linkage. In this
// case, the assembler will complain about the variable being both weak // case, the assembler will complain about the variable being both weak
// and common, so we disable this optimization. // and common, so we disable this optimization.
if (!I->getInitializer()->isNullValue() || if (!I->getInitializer()->isNullValue()) {
I->hasWeakLinkage()) {
Out << " = " ; Out << " = " ;
writeOperand(I->getInitializer()); writeOperand(I->getInitializer());
} else if (I->hasWeakLinkage()) {
// We have to specify an initializer, but it doesn't have to be
// complete. If the value is an aggregate, print out { 0 }, and let
// the compiler figure out the rest of the zeros.
Out << " = " ;
if (isa<StructType>(I->getInitializer()->getType()) ||
isa<ArrayType>(I->getInitializer()->getType())) {
Out << "{ 0 }";
} else {
// Just print it out normally.
writeOperand(I->getInitializer());
}
} }
Out << ";\n"; Out << ";\n";
} }