From: Brad Smith <brad@comstyle.com>
Date: Thu, 11 Sep 2014 17:40:51 +0000 (+0000)
Subject: Provide an implementation of getNoopForMachoTarget for SPARC.
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;ds=sidebyside;h=da9bce2e13dacd18d358b11a1e81b9bfb169a335;p=oota-llvm.git

Provide an implementation of getNoopForMachoTarget for SPARC.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217611 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/Sparc/SparcInstrInfo.cpp b/lib/Target/Sparc/SparcInstrInfo.cpp
index 8b2e6bc5f32..6836d8d6f68 100644
--- a/lib/Target/Sparc/SparcInstrInfo.cpp
+++ b/lib/Target/Sparc/SparcInstrInfo.cpp
@@ -37,6 +37,11 @@ SparcInstrInfo::SparcInstrInfo(SparcSubtarget &ST)
     RI(ST), Subtarget(ST) {
 }
 
+/// getNoopForMachoTarget - Return the noop instruction to use for a noop.
+void SparcInstrInfo::getNoopForMachoTarget(MCInst &NopInst) const {
+  NopInst.setOpcode(SP::NOP);
+}
+
 /// isLoadFromStackSlot - If the specified machine instruction is a direct
 /// load from a stack slot, return the virtual or physical register number of
 /// the destination along with the FrameIndex of the loaded stack slot.  If
diff --git a/lib/Target/Sparc/SparcInstrInfo.h b/lib/Target/Sparc/SparcInstrInfo.h
index fe93ed7b57c..2c39bbc3000 100644
--- a/lib/Target/Sparc/SparcInstrInfo.h
+++ b/lib/Target/Sparc/SparcInstrInfo.h
@@ -93,6 +93,8 @@ public:
                             const TargetRegisterInfo *TRI) const override;
 
   unsigned getGlobalBaseReg(MachineFunction *MF) const;
+
+  void getNoopForMachoTarget(MCInst &NopInst) const override;
 };
 
 }
diff --git a/test/CodeGen/SPARC/empty-functions.ll b/test/CodeGen/SPARC/empty-functions.ll
new file mode 100644
index 00000000000..92522994cc7
--- /dev/null
+++ b/test/CodeGen/SPARC/empty-functions.ll
@@ -0,0 +1,8 @@
+; RUN: llc < %s -mtriple=sparc-unknown-openbsd -disable-fp-elim | FileCheck -check-prefix=CHECK-FP-LABEL %s
+
+define void @func() {
+entry:
+  unreachable
+}
+; CHECK-FP-LABEL:      {{_?}}func:
+; CHECK-FP-LABEL: nop {{[;!]}} avoids zero-length function