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[llvm-link] fix IRMover returning wrong modified vector type

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Modified scalable vector types weren't correctly returned at link-time.
The previous behaviour was a FixedVectorType was constructed
when expecting a ScalableVectorType. This commit has added a regression
test which re-creates the failure as well as a fix.

Reviewed By: sdesmalen

Differential Revision: https://reviews.llvm.org/D96953
This commit is contained in:
Nashe Mncube 2021-02-19 11:34:58 +00:00
parent b5b3243bf7
commit 0327cfe2f7
3 changed files with 13 additions and 3 deletions
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5
llvm/lib/Linker/IRMover.cpp
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@ -298,10 +298,9 @@ Type *TypeMapTy::get(Type *Ty, SmallPtrSet<StructType *, 8> &Visited) {
return *Entry = ArrayType::get(ElementTypes[0],
cast<ArrayType>(Ty)->getNumElements());
case Type::ScalableVectorTyID:
// FIXME: handle scalable vectors
case Type::FixedVectorTyID:
return *Entry = FixedVectorType::get(
ElementTypes[0], cast<FixedVectorType>(Ty)->getNumElements());
return *Entry = VectorType::get(ElementTypes[0],
cast<VectorType>(Ty)->getElementCount());
case Type::PointerTyID:
return *Entry = PointerType::get(ElementTypes[0],
cast<PointerType>(Ty)->getAddressSpace());

4
llvm/test/Linker/Inputs/fixed-vector-type-construction.ll Normal file
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@ -0,0 +1,4 @@
%t = type {i32, float}
define void @foo(<4 x %t*> %x) {
ret void
}

7
llvm/test/Linker/scalable-vector-type-construction.ll Normal file
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@ -0,0 +1,7 @@
; RUN: llvm-link %p/Inputs/fixed-vector-type-construction.ll %s -S -o - | FileCheck %s
%t = type {i32, float}
; CHECK: define void @foo(<4 x
; CHECK; define void @bar(<vscale x 4 x
define void @bar(<vscale x 4 x %t*> %x) {
ret void
}