https://bugs.llvm.org/show_bug.cgi?id=40853
Bug ID: 40853
Summary: Enable overflow intrinsic vectorization support
Product: libraries
Version: trunk
Hardware: PC
OS: Windows NT
Status: NEW
Severity: enhancement
Priority: P
Component: Scalar Optimizations
Assignee: unassignedb...@nondot.org
Reporter: llvm-...@redking.me.uk
CC: a.bat...@hotmail.com, florian_h...@apple.com,
llvm-bugs@lists.llvm.org, nikita....@gmail.com
Now that vector versions of the *.overflow intrinsics are supported we need to
add vectorization support.
For instance, in SLP BoUpSLP::canMapToVector can't handle the return struct
type:
{i32, i1} @llvm.sadd.with.overflow.i32(i32 %a, i32 %b)
to
{<4 x i32>, <4 x i1>} @llvm.sadd.with.overflow.v4i32(<4 x i32> %a, <4 x i32>
%b)
The LV has similar issues.
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