Add code that can be used for debugging
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4888 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/TableGen/TableGen.cpp b/utils/TableGen/TableGen.cpp
index 6f330ea..35df907 100644
--- a/utils/TableGen/TableGen.cpp
+++ b/utils/TableGen/TableGen.cpp
@@ -201,6 +201,14 @@
abort();
}
+#if 0
+ std::cerr << "FVB: " << FirstVaryingBit << " - " << LastFixedBit
+ << ": [" << RangeEnd-RangeBegin << "] - ";
+ for (int i = LastFixedBit-1; i >= (int)FirstVaryingBit; --i)
+ std::cerr << (int)((BitInit*)getBit(*RangeBegin, i))->getValue() << " ";
+ std::cerr << "\n";
+#endif
+
if (Record *R = ParseMachineCode(RangeBegin, RangeEnd, M)) {
if (Match) {
std::cerr << "Error: Multiple matches found:\n";
@@ -281,7 +289,8 @@
}
static void ParseMachineCode() {
- unsigned char Buffer[] = { 0x55, // push EBP
+ unsigned char Buffer[] = {
+ 0x55, // push EBP
0x89, 0xE5, // mov EBP, ESP
//0x83, 0xEC, 0x08, // sub ESP, 0x8
0xE8, 1, 2, 3, 4, // call +0x04030201
@@ -291,10 +300,10 @@
0x90, // nop
0xC9, // leave
0x89, 0xF6, // mov ESI, ESI
- 0xB8, 1, 2, 3, 4, // mov EAX, 0x04030201
0x68, 1, 2, 3, 4, // push 0x04030201
0x5e, // pop ESI
0xFF, 0xD0, // call EAX
+ 0xB8, 1, 2, 3, 4, // mov EAX, 0x04030201
0x85, 0xC0, // test EAX, EAX
0xF4, // hlt
};