add bc reader/writer support for inline asm
llvm-svn: 25621
diff --git a/llvm/lib/Bytecode/Writer/Writer.cpp b/llvm/lib/Bytecode/Writer/Writer.cpp
index bfbce91c..80abcac 100644
--- a/llvm/lib/Bytecode/Writer/Writer.cpp
+++ b/llvm/lib/Bytecode/Writer/Writer.cpp
@@ -22,6 +22,7 @@
#include "llvm/CallingConv.h"
#include "llvm/Constants.h"
#include "llvm/DerivedTypes.h"
+#include "llvm/InlineAsm.h"
#include "llvm/Instructions.h"
#include "llvm/Module.h"
#include "llvm/SymbolTable.h"
@@ -389,6 +390,19 @@
return;
}
+/// outputInlineAsm - InlineAsm's get emitted to the constant pool, so they can
+/// be shared by multiple uses.
+void BytecodeWriter::outputInlineAsm(const InlineAsm *IA) {
+ // Output a marker, so we know when we have one one parsing the constant pool.
+ // Note that this encoding is 5 bytes: not very efficient for a marker. Since
+ // unique inline asms are rare, this should hardly matter.
+ output_vbr(~0U);
+
+ output(IA->getAsmString());
+ output(IA->getConstraintString());
+ output_vbr(unsigned(IA->hasSideEffects()));
+}
+
void BytecodeWriter::outputConstantStrings() {
SlotCalculator::string_iterator I = Table.string_begin();
SlotCalculator::string_iterator E = Table.string_end();
@@ -847,7 +861,8 @@
/*empty*/;
unsigned NC = ValNo; // Number of constants
- for (; NC < Plane.size() && (isa<Constant>(Plane[NC])); NC++)
+ for (; NC < Plane.size() && (isa<Constant>(Plane[NC]) ||
+ isa<InlineAsm>(Plane[NC])); NC++)
/*empty*/;
NC -= ValNo; // Convert from index into count
if (NC == 0) return; // Skip empty type planes...
@@ -866,9 +881,10 @@
for (unsigned i = ValNo; i < ValNo+NC; ++i) {
const Value *V = Plane[i];
- if (const Constant *C = dyn_cast<Constant>(V)) {
+ if (const Constant *C = dyn_cast<Constant>(V))
outputConstant(C);
- }
+ else
+ outputInlineAsm(cast<InlineAsm>(V));
}
}