From: Rafael Espindola <rafael.espindola@gmail.com>
Date: Fri, 6 Oct 2006 17:26:30 +0000 (+0000)
Subject: fix some bugs affecting functions with no arguments
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=af1dabef358895da483617b6f5cbd25b60b6f410;p=oota-llvm.git

fix some bugs affecting functions with no arguments


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30767 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/ARM/ARMISelDAGToDAG.cpp b/lib/Target/ARM/ARMISelDAGToDAG.cpp
index 107ce5c543d..167c052c332 100644
--- a/lib/Target/ARM/ARMISelDAGToDAG.cpp
+++ b/lib/Target/ARM/ARMISelDAGToDAG.cpp
@@ -181,6 +181,8 @@ public:
   }
   unsigned getStackSize(void) {
     int last = is_reg.size() - 1;
+    if (last < 0)
+      return 0;
     if (isRegister(last))
       return 0;
     return getOffset(last) + MVT::getSizeInBits(getType(last))/8;
@@ -193,7 +195,7 @@ public:
     last--;
     return last;
   }
-  unsigned lastRegNum(void) {
+  int lastRegNum(void) {
     int            l = lastRegArg();
     if (l < 0)
       return -1;
@@ -264,7 +266,7 @@ static SDOperand LowerCALL(SDOperand Op, SelectionDAG &DAG) {
   // Build a sequence of copy-to-reg nodes chained together with token chain
   // and flag operands which copy the outgoing args into the appropriate regs.
   SDOperand InFlag;
-  for (unsigned i = 0, e = Layout.lastRegArg(); i <= e; ++i) {
+  for (int i = 0, e = Layout.lastRegArg(); i <= e; ++i) {
     SDOperand     Arg = Op.getOperand(5+2*i);
     unsigned   RegNum = Layout.getRegisterNum(i);
     unsigned     Reg1 = regs[RegNum];
diff --git a/test/CodeGen/ARM/call.ll b/test/CodeGen/ARM/call.ll
index cfffa99eb0b..890018396e8 100644
--- a/test/CodeGen/ARM/call.ll
+++ b/test/CodeGen/ARM/call.ll
@@ -2,7 +2,9 @@
 void %f() {
 entry:
 	call void %g( int 1, int 2, int 3, int 4 )
+	call void %h()
 	ret void
 }
 
 declare void %g(int, int, int, int)
+declare void %h()