From 7e7eb8ce695930193a7e6e6a6ad0e0d52d3d97c3 Mon Sep 17 00:00:00 2001
From: Venkatraman Govindaraju <venkatra@cs.wisc.edu>
Date: Sun, 22 Sep 2013 01:40:24 +0000
Subject: [PATCH] [SPARC] Make functions with GLOBAL_OFFSET_TABLE access as
 non-leaf functions.

llvm-svn: 191160
---
 llvm/lib/Target/Sparc/SparcISelLowering.cpp |  4 ++++
 llvm/test/CodeGen/SPARC/constpool.ll        |  8 ++++++--
 llvm/test/CodeGen/SPARC/globals.ll          | 10 ++++++----
 3 files changed, 16 insertions(+), 6 deletions(-)

diff --git a/llvm/lib/Target/Sparc/SparcISelLowering.cpp b/llvm/lib/Target/Sparc/SparcISelLowering.cpp
index 2260fe48b313..eb9896c1f569 100644
--- a/llvm/lib/Target/Sparc/SparcISelLowering.cpp
+++ b/llvm/lib/Target/Sparc/SparcISelLowering.cpp
@@ -1651,6 +1651,10 @@ SDValue SparcTargetLowering::makeAddress(SDValue Op, SelectionDAG &DAG) const {
     SDValue HiLo = makeHiLoPair(Op, SPII::MO_HI, SPII::MO_LO, DAG);
     SDValue GlobalBase = DAG.getNode(SPISD::GLOBAL_BASE_REG, DL, VT);
     SDValue AbsAddr = DAG.getNode(ISD::ADD, DL, VT, GlobalBase, HiLo);
+    // GLOBAL_BASE_REG codegen'ed with call. Inform MFI that this
+    // function has calls.
+    MachineFrameInfo *MFI = DAG.getMachineFunction().getFrameInfo();
+    MFI->setHasCalls(true);
     return DAG.getLoad(VT, DL, DAG.getEntryNode(), AbsAddr,
                        MachinePointerInfo::getGOT(), false, false, false, 0);
   }
diff --git a/llvm/test/CodeGen/SPARC/constpool.ll b/llvm/test/CodeGen/SPARC/constpool.ll
index d8b7b153ee09..b861676ce3e1 100644
--- a/llvm/test/CodeGen/SPARC/constpool.ll
+++ b/llvm/test/CodeGen/SPARC/constpool.ll
@@ -39,8 +39,10 @@ entry:
 ; v8pic32: sethi %hi(.LCPI0_0), %[[R1:[gilo][0-7]]]
 ; v8pic32: add %[[R1]], %lo(.LCPI0_0), %[[Goffs:[gilo][0-7]]]
 ; v8pic32: ld [%[[GOT:[gilo][0-7]]]+%[[Goffs]]], %[[Gaddr:[gilo][0-7]]]
-; v8pic32: jmp %o7+8
 ; v8pic32: ld [%[[Gaddr]]], %f0
+; v8pic32: jmp %i7+8
+; v8pic32: restore
+
 
 
 ; v9pic32: floatCP
@@ -48,6 +50,8 @@ entry:
 ; v9pic32: sethi %hi(.LCPI0_0), %[[R1:[gilo][0-7]]]
 ; v9pic32: add %[[R1]], %lo(.LCPI0_0), %[[Goffs:[gilo][0-7]]]
 ; v9pic32: ldx [%[[GOT:[gilo][0-7]]]+%[[Goffs]]], %[[Gaddr:[gilo][0-7]]]
-; v9pic32: jmp %o7+8
 ; v9pic32: ld [%[[Gaddr]]], %f1
+; v9pic32: jmp %i7+8
+; v9pic32: restore
+
 
diff --git a/llvm/test/CodeGen/SPARC/globals.ll b/llvm/test/CodeGen/SPARC/globals.ll
index 0e0dfc8f8db6..7e3effe3f4ce 100644
--- a/llvm/test/CodeGen/SPARC/globals.ll
+++ b/llvm/test/CodeGen/SPARC/globals.ll
@@ -41,8 +41,9 @@ define zeroext i8 @loadG() {
 ; v8pic32: sethi %hi(G), %[[R1:[gilo][0-7]]]
 ; v8pic32: add %[[R1]], %lo(G), %[[Goffs:[gilo][0-7]]]
 ; v8pic32: ld [%[[GOT:[gilo][0-7]]]+%[[Goffs]]], %[[Gaddr:[gilo][0-7]]]
-; v8pic32: jmp %o7+8
-; v8pic32: ldub [%[[Gaddr]]], %o0
+; v8pic32: ldub [%[[Gaddr]]], %i0
+; v8pic32: jmp %i7+8
+; v8pic32: restore
 
 
 ; v9pic32: loadG
@@ -50,6 +51,7 @@ define zeroext i8 @loadG() {
 ; v9pic32: sethi %hi(G), %[[R1:[gilo][0-7]]]
 ; v9pic32: add %[[R1]], %lo(G), %[[Goffs:[gilo][0-7]]]
 ; v9pic32: ldx [%[[GOT:[gilo][0-7]]]+%[[Goffs]]], %[[Gaddr:[gilo][0-7]]]
-; v9pic32: jmp %o7+8
-; v9pic32: ldub [%[[Gaddr]]], %o0
+; v9pic32: ldub [%[[Gaddr]]], %i0
+; v9pic32: jmp %i7+8
+; v9pic32: restore