[PATCH] D11515: [mips][FastISel] Fix call lowering by bailing out on "fastcc" calls.

[Vasileios Kalintiris]

This revision was automatically updated to reflect the committed changes.
Closed by commit rL243485: [mips][FastISel] Fix call lowering by bailing out on "fastcc" calls. (authored by vkalintiris).

Changed prior to commit:
  http://reviews.llvm.org/D11515?vs=30663&id=30859#toc

Repository:
  rL LLVM

http://reviews.llvm.org/D11515

Files:
  llvm/trunk/lib/Target/Mips/MipsFastISel.cpp
  llvm/trunk/test/CodeGen/Mips/Fast-ISel/fastcc-miss.ll

Index: llvm/trunk/test/CodeGen/Mips/Fast-ISel/fastcc-miss.ll
===================================================================
--- llvm/trunk/test/CodeGen/Mips/Fast-ISel/fastcc-miss.ll
+++ llvm/trunk/test/CodeGen/Mips/Fast-ISel/fastcc-miss.ll
@@ -0,0 +1,16 @@
+; RUN: llc < %s -march=mipsel -mcpu=mips32r2 -O0 -relocation-model=pic \
+; RUN:     -fast-isel=true -mips-fast-isel -fast-isel-verbose 2>&1 | \
+; RUN:   FileCheck %s
+
+; CHECK:      FastISel missed call:
+; CHECK-SAME: %call = call fastcc i32 @foo(i32 signext %a, i32 signext %b)
+
+define internal i32 @bar(i32 signext %a, i32 signext %b) {
+  %s = and i32 %a, %b
+  ret i32 %s
+}
+
+define i32 @foo(i32 signext %a, i32 signext %b) {
+  %call = call fastcc i32 @foo(i32 signext %a, i32 signext %b)
+  ret i32 %call
+}
Index: llvm/trunk/lib/Target/Mips/MipsFastISel.cpp
===================================================================
--- llvm/trunk/lib/Target/Mips/MipsFastISel.cpp
+++ llvm/trunk/lib/Target/Mips/MipsFastISel.cpp
@@ -1245,6 +1245,10 @@
   const Value *Callee = CLI.Callee;
   MCSymbol *Symbol = CLI.Symbol;
 
+  // Do not handle FastCC.
+  if (CC == CallingConv::Fast)
+    return false;
+
   // Allow SelectionDAG isel to handle tail calls.
   if (IsTailCall)
     return false;
@@ -1422,6 +1426,11 @@
 
   if (Ret->getNumOperands() > 0) {
     CallingConv::ID CC = F.getCallingConv();
+
+    // Do not handle FastCC.
+    if (CC == CallingConv::Fast)
+      return false;
+
     SmallVector<ISD::OutputArg, 4> Outs;
     GetReturnInfo(F.getReturnType(), F.getAttributes(), Outs, TLI, DL);
 


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