[llvm] r201994 - SPARC: Implement TRAP lowering. Matches what GCC emits.

[Benjamin Kramer]

Author: d0k
Date: Sun Feb 23 15:43:52 2014
New Revision: 201994

URL: http://llvm.org/viewvc/llvm-project?rev=201994&view=rev
Log:
SPARC: Implement TRAP lowering. Matches what GCC emits.

Added:
    llvm/trunk/test/CodeGen/SPARC/trap.ll
Modified:
    llvm/trunk/lib/Target/Sparc/SparcISelLowering.cpp
    llvm/trunk/lib/Target/Sparc/SparcInstrInfo.td

Modified: llvm/trunk/lib/Target/Sparc/SparcISelLowering.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/Sparc/SparcISelLowering.cpp?rev=201994&r1=201993&r2=201994&view=diff
==============================================================================
--- llvm/trunk/lib/Target/Sparc/SparcISelLowering.cpp (original)
+++ llvm/trunk/lib/Target/Sparc/SparcISelLowering.cpp Sun Feb 23 15:43:52 2014
@@ -1567,6 +1567,8 @@ SparcTargetLowering::SparcTargetLowering
   // VAARG needs to be lowered to not do unaligned accesses for doubles.
   setOperationAction(ISD::VAARG             , MVT::Other, Custom);
 
+  setOperationAction(ISD::TRAP              , MVT::Other, Legal);
+
   // Use the default implementation.
   setOperationAction(ISD::VACOPY            , MVT::Other, Expand);
   setOperationAction(ISD::VAEND             , MVT::Other, Expand);

Modified: llvm/trunk/lib/Target/Sparc/SparcInstrInfo.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/Sparc/SparcInstrInfo.td?rev=201994&r1=201993&r2=201994&view=diff
==============================================================================
--- llvm/trunk/lib/Target/Sparc/SparcInstrInfo.td (original)
+++ llvm/trunk/lib/Target/Sparc/SparcInstrInfo.td Sun Feb 23 15:43:52 2014
@@ -312,6 +312,9 @@ let hasSideEffects = 1, mayStore = 1 in
                    [(flushw)]>;
 }
 
+let isBarrier = 1, isTerminator = 1, rd = 0b1000, rs1 = 0, simm13 = 5 in
+  def TA5 : F3_2<0b10, 0b111010, (outs), (ins), "ta 5", [(trap)]>;
+
 let rd = 0 in
   def UNIMP : F2_1<0b000, (outs), (ins i32imm:$val),
                   "unimp $val", []>;

Added: llvm/trunk/test/CodeGen/SPARC/trap.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/SPARC/trap.ll?rev=201994&view=auto
==============================================================================
--- llvm/trunk/test/CodeGen/SPARC/trap.ll (added)
+++ llvm/trunk/test/CodeGen/SPARC/trap.ll Sun Feb 23 15:43:52 2014
@@ -0,0 +1,11 @@
+; RUN: llc -mtriple=sparc-linux-gnu < %s -show-mc-encoding | FileCheck %s
+
+define void @test1() {
+  tail call void @llvm.trap()
+  unreachable
+
+; CHECK-LABEL: test1:
+; CHECK: ta 5 ! encoding: [0x91,0xd0,0x20,0x05]
+}
+
+declare void @llvm.trap()