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[WebAssembly] Disable 128-bit shift libcalls 

Currently the signature of the functions
i128(i128, i32) aka void(i32, i64, i64, i32) doesn't match the signature
of the call emitted by the default lowering, void(i32, i64, i64).

llvm-svn: 268991
This commit is contained in:
Derek Schuff 2016-05-10 00:14:07 +00:00
parent ffb273d21a
commit 138943fe25
1 changed files with 7 additions and 0 deletions
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7
llvm/lib/Target/WebAssembly/WebAssemblyISelLowering.cpp
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@ -135,6 +135,13 @@ WebAssemblyTargetLowering::WebAssemblyTargetLowering(
// Trap lowers to wasm unreachable
setOperationAction(ISD::TRAP, MVT::Other, Legal);
// Disable 128-bit shift libcalls. Currently the signature of the functions
// i128(i128, i32) aka void(i32, i64, i64, i32) doesn't match the signature
// of the call emitted by the default lowering, void(i32, i64, i64).
setLibcallName(RTLIB::SRL_I128, nullptr);
setLibcallName(RTLIB::SRA_I128, nullptr);
setLibcallName(RTLIB::SHL_I128, nullptr);
}
FastISel *WebAssemblyTargetLowering::createFastISel(