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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.

This lets clang emit "ta 5" for trap instructions on sparc64, instead of
emitting a call to abort(), making it possible to link the kernel.
This commit is contained in:
Dimitry Andric 2014-02-23 23:23:01 +00:00
parent defb3353ee
commit b7024fa517
2 changed files with 5 additions and 0 deletions
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2
contrib/llvm/lib/Target/Sparc/SparcISelLowering.cpp
View File

@ -1566,6 +1566,8 @@ SparcTargetLowering::SparcTargetLowering(TargetMachine &TM)
// 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);

3
contrib/llvm/lib/Target/Sparc/SparcInstrInfo.td
View File

@ -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", []>;