2014-03-18 22:07:45 +00:00
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Pull in r201994 from upstream llvm trunk (by Benjamin Kramer):
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SPARC: Implement TRAP lowering. Matches what GCC emits.
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2014-05-24 22:27:31 +00:00
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Introduced here: http://svnweb.freebsd.org/changeset/base/262415
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2014-03-18 22:07:45 +00:00
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Index: lib/Target/Sparc/SparcInstrInfo.td
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===================================================================
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--- lib/Target/Sparc/SparcInstrInfo.td
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+++ lib/Target/Sparc/SparcInstrInfo.td
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@@ -312,6 +312,9 @@ let hasSideEffects = 1, mayStore = 1 in {
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[(flushw)]>;
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}
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+let isBarrier = 1, isTerminator = 1, rd = 0b1000, rs1 = 0, simm13 = 5 in
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+ def TA5 : F3_2<0b10, 0b111010, (outs), (ins), "ta 5", [(trap)]>;
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+
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let rd = 0 in
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def UNIMP : F2_1<0b000, (outs), (ins i32imm:$val),
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"unimp $val", []>;
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Index: lib/Target/Sparc/SparcISelLowering.cpp
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===================================================================
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--- lib/Target/Sparc/SparcISelLowering.cpp
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+++ lib/Target/Sparc/SparcISelLowering.cpp
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@@ -1565,6 +1565,8 @@ SparcTargetLowering::SparcTargetLowering(TargetMac
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// VAARG needs to be lowered to not do unaligned accesses for doubles.
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setOperationAction(ISD::VAARG , MVT::Other, Custom);
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+ setOperationAction(ISD::TRAP , MVT::Other, Legal);
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+
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// Use the default implementation.
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setOperationAction(ISD::VACOPY , MVT::Other, Expand);
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setOperationAction(ISD::VAEND , MVT::Other, Expand);
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Index: test/CodeGen/SPARC/trap.ll
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===================================================================
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--- test/CodeGen/SPARC/trap.ll
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+++ test/CodeGen/SPARC/trap.ll
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@@ -0,0 +1,11 @@
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+; RUN: llc -mtriple=sparc-linux-gnu < %s -show-mc-encoding | FileCheck %s
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+
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+define void @test1() {
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+ tail call void @llvm.trap()
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+ unreachable
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+
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+; CHECK-LABEL: test1:
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+; CHECK: ta 5 ! encoding: [0x91,0xd0,0x20,0x05]
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+}
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+
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+declare void @llvm.trap()
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