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-rw-r--r--lib/Target/Mips/MipsISelLowering.cpp2
-rw-r--r--lib/Target/Mips/MipsInstrInfo.td5
-rw-r--r--test/CodeGen/Mips/trap.ll11
3 files changed, 18 insertions, 0 deletions
diff --git a/lib/Target/Mips/MipsISelLowering.cpp b/lib/Target/Mips/MipsISelLowering.cpp
index 5b898af6d6..a3ea907e96 100644
--- a/lib/Target/Mips/MipsISelLowering.cpp
+++ b/lib/Target/Mips/MipsISelLowering.cpp
@@ -404,6 +404,8 @@ MipsTargetLowering(MipsTargetMachine &TM)
// @LOCALMOD-END
+ setOperationAction(ISD::TRAP, MVT::Other, Legal);
+
setTargetDAGCombine(ISD::SDIVREM);
setTargetDAGCombine(ISD::UDIVREM);
setTargetDAGCombine(ISD::SELECT);
diff --git a/lib/Target/Mips/MipsInstrInfo.td b/lib/Target/Mips/MipsInstrInfo.td
index 849544cf22..e3180f8f39 100644
--- a/lib/Target/Mips/MipsInstrInfo.td
+++ b/lib/Target/Mips/MipsInstrInfo.td
@@ -803,6 +803,11 @@ class SCBase<string opstr, RegisterOperand RO, Operand Mem> :
class MFC3OP<dag outs, dag ins, string asmstr> :
InstSE<outs, ins, asmstr, [], NoItinerary, FrmFR>;
+let isBarrier = 1, isTerminator = 1, isCodeGenOnly = 1 in
+def TRAP : InstSE<(outs), (ins), "break", [(trap)], NoItinerary, FrmOther> {
+ let Inst = 0x0000000d;
+}
+
//===----------------------------------------------------------------------===//
// Pseudo instructions
//===----------------------------------------------------------------------===//
diff --git a/test/CodeGen/Mips/trap.ll b/test/CodeGen/Mips/trap.ll
new file mode 100644
index 0000000000..beb4b89463
--- /dev/null
+++ b/test/CodeGen/Mips/trap.ll
@@ -0,0 +1,11 @@
+; RUN: llc -march=mipsel -mcpu=mips32 < %s | FileCheck %s
+
+declare void @llvm.trap()
+
+define void @f1() {
+entry:
+ call void @llvm.trap()
+ unreachable
+
+; CHECK: break
+}