Add a bit to mark operands of asm's that conflict
with an earlyclobber operand elsewhere. Propagate
this bit and the earlyclobber bit through SDISel.
Change linear-scan RA not to allocate regs in a way
that conflicts with an earlyclobber. See also comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56290 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
index 98f4b7d..42a61c6 100644
--- a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
+++ b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
@@ -1325,7 +1325,8 @@
false, false, false);
else {
AsmPrinter *AP = const_cast<AsmPrinter*>(this);
- if ((OpFlags & 7) == 4 /*ADDR MODE*/) {
+ if ((OpFlags & 7) == 4 /*ADDR MODE*/ ||
+ (OpFlags & 7) == 7) /*ADDR MODE OVERLAPS EARLYCLOBBER*/ {
Error = AP->PrintAsmMemoryOperand(MI, OpNo, AsmPrinterVariant,
Modifier[0] ? Modifier : 0);
} else {