[llvm] 2e214ba - [SVE] Remove invalid usage of VectorType::getNumElements in Function

[Christopher Tetreault via llvm-commits]

Author: Christopher Tetreault
Date: 2020-04-28T12:59:26-07:00
New Revision: 2e214baed929ab4e38feb34fd1451d759821e4f5

URL: https://github.com/llvm/llvm-project/commit/2e214baed929ab4e38feb34fd1451d759821e4f5
DIFF: https://github.com/llvm/llvm-project/commit/2e214baed929ab4e38feb34fd1451d759821e4f5.diff

LOG: [SVE] Remove invalid usage of VectorType::getNumElements in Function

Summary:
Removes usage of VectorType::getNumElements identified by test located
at CodeGen/aarch64-sve-intrinsics/acle_sve_dot.c. This code explicitly
converts a potentially fixed length vector to scalable vector by
constructing the ElementCount = {getNumElements(), true}

Reviewers: rengolin, efriedma, kmclaughlin, c-rhodes, sdesmalen

Reviewed By: efriedma

Subscribers: tschuett, kristof.beyls, hiraditya, rkruppe, psnobl, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D78967

Added: 
    

Modified: 
    llvm/lib/IR/Function.cpp

Removed: 
    


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diff  --git a/llvm/lib/IR/Function.cpp b/llvm/lib/IR/Function.cpp
index 53ab11775af9..77e0f3fc2d0e 100644
--- a/llvm/lib/IR/Function.cpp
+++ b/llvm/lib/IR/Function.cpp
@@ -1074,8 +1074,8 @@ static Type *DecodeFixedType(ArrayRef<Intrinsic::IITDescriptor> &Infos,
     // Return the overloaded type (which determines the pointers address space)
     return Tys[D.getOverloadArgNumber()];
   case IITDescriptor::ScalableVecArgument: {
-    auto *Ty = cast<VectorType>(DecodeFixedType(Infos, Tys, Context));
-    return VectorType::get(Ty->getElementType(), {Ty->getNumElements(), true});
+    auto *Ty = cast<FixedVectorType>(DecodeFixedType(Infos, Tys, Context));
+    return ScalableVectorType::get(Ty->getElementType(), Ty->getNumElements());
   }
   }
   llvm_unreachable("unhandled");