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ARM: mark branch-like instructions with correct flags.

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There's probably no way to test BXJ, but if the compiler ever did emit it
during CodeGen it would have to be a block terminator so "isBranch" is
appropriate.

BLX is more tricky. Clearly a call, but it affects surprisingly little.

rdar://18719544

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@236140 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Tim Northover 2015-04-29 19:16:38 +00:00
parent f74703a44f
commit 304d8fb5ca
1 changed files with 2 additions and 0 deletions
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lib/Target/ARM/ARMInstrInfo.td
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@ -2256,6 +2256,7 @@ def BLXi : AXI<(outs), (ins blx_target:$target), BrMiscFrm, NoItinerary,
bits<25> target; bits<25> target;
let Inst{23-0} = target{24-1}; let Inst{23-0} = target{24-1};
let Inst{24} = target{0}; let Inst{24} = target{0};
let isCall = 1;
} }
// Branch and Exchange Jazelle // Branch and Exchange Jazelle
@ -2266,6 +2267,7 @@ def BXJ : ABI<0b0001, (outs), (ins GPR:$func), NoItinerary, "bxj", "\t$func",
let Inst{19-8} = 0xfff; let Inst{19-8} = 0xfff;
let Inst{7-4} = 0b0010; let Inst{7-4} = 0b0010;
let Inst{3-0} = func; let Inst{3-0} = func;
let isBranch = 1;
} }
// Tail calls. // Tail calls.