https://llvm.org/bugs/show_bug.cgi?id=31446
Bug ID: 31446
Summary: [feature-request] make vector intrinsics constexpr
Product: clang
Version: trunk
Hardware: All
OS: All
Status: NEW
Severity: enhancement
Priority: P
Component: Frontend
Assignee: unassignedclangb...@nondot.org
Reporter: gonzalob...@gmail.com
CC: llvm-bugs@lists.llvm.org
Classification: Unclassified
Linear algebra libraries like Eigen3 explicitly vectorize their code. However,
because vector intrinsics (SSE, AVX,...) are not constexpr, it is impossible
for them to provide an interface that can easily be used both at compile-time
and run-time.
Duplicating all their code for running at compile-time is not an option.
A first step towards allowing these libraries to be usable within constant
expressions would be to make the vector intrinsics constexpr and allowing their
evaluation at compile-time.
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