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Update __rust_{alloc,realloc} builtins #89

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Update __rust_{alloc,realloc} builtins #89

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55e9ff6
Update __rust_{alloc,realloc} builtins
jacob-hughes Feb 2, 2021
40d6804
Remove type checks
jacob-hughes Feb 9, 2021
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Update __rust_{alloc,realloc} builtins 
The prototypes for these alloc functions changed in library/alloc and
need updating here.
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@jacob-hughes
jacob-hughes committed Feb 2, 2021
commit 55e9ff6ac714c307368216620a6955cc9582f088
11 changes: 4 additions & 7 deletions llvm/lib/Analysis/TargetLibraryInfo.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1491,10 +1491,9 @@ bool TargetLibraryInfoImpl::isValidProtoForLibFunc(const FunctionType &FTy,
}

case LibFunc_rust_alloc:
return (NumParams == 3 && FTy.getReturnType()->isPointerTy() &&
return (NumParams == 2 && FTy.getReturnType()->isPointerTy() &&
FTy.getParamType(0)->isIntegerTy() &&
FTy.getParamType(1)->isIntegerTy() &&
FTy.getParamType(2)->isPointerTy());
FTy.getParamType(1)->isIntegerTy());

case LibFunc_rust_dealloc:
return (NumParams == 3 && FTy.getReturnType()->isVoidTy() &&
Expand All @@ -1503,13 +1502,11 @@ bool TargetLibraryInfoImpl::isValidProtoForLibFunc(const FunctionType &FTy,
FTy.getParamType(2)->isIntegerTy());

case LibFunc_rust_realloc:
return (NumParams == 6 && FTy.getReturnType()->isPointerTy() &&
return (NumParams == 4 && FTy.getReturnType()->isPointerTy() &&
FTy.getParamType(0)->isPointerTy() &&
FTy.getParamType(1)->isIntegerTy() &&
FTy.getParamType(2)->isIntegerTy() &&
FTy.getParamType(3)->isIntegerTy() &&
FTy.getParamType(4)->isIntegerTy() &&
FTy.getParamType(5)->isPointerTy());
FTy.getParamType(3)->isIntegerTy());

case LibFunc::NumLibFuncs:
case LibFunc::NotLibFunc:
Expand Down