[AArch64] Add support for MSVC-style mangling for SVE

The latest MSVC release candidate has support for SVE, and with it a set of new SVE mangling patterns. We should mangle like MSVC instead of using the manglings we invented before (in #141887).

Example code:

#include <arm_sve.h>
void f(svint32_t x) {}

Latest MSVC produces the mangled symbol ?f@@YAX$$_CD@Z.

The relevant code is in MicrosoftCXXNameMangler::mangleType; replace the existing code which does #include "clang/Basic/AArch64ACLETypes.def".

(As a followup, we should also add demangling support in llvm/lib/Demangle/MicrosoftDemangle.cpp.)

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@llvm/issue-subscribers-good-first-issue

Author: Eli Friedman (efriedma-quic)

Details

The latest MSVC release candidate has support for SVE, and with it a set of new SVE mangling patterns. We should mangle like MSVC instead of using the manglings we invented before (in #141887).

Example code:

#include &lt;arm_sve.h&gt;
void f(svint32_t x) {}

Latest MSVC produces the mangled symbol ?f@@YAX$$_CD@Z.

The relevant code is in MicrosoftCXXNameMangler::mangleType; replace the existing code which does #include "clang/Basic/AArch64ACLETypes.def".

(As a followup, we should also add demangling support in llvm/lib/Demangle/MicrosoftDemangle.cpp.)

@llvm/issue-subscribers-backend-aarch64

Author: Eli Friedman (efriedma-quic)

Details

The latest MSVC release candidate has support for SVE, and with it a set of new SVE mangling patterns. We should mangle like MSVC instead of using the manglings we invented before (in #141887).

Example code:

#include &lt;arm_sve.h&gt;
void f(svint32_t x) {}

Latest MSVC produces the mangled symbol ?f@@YAX$$_CD@Z.

The relevant code is in MicrosoftCXXNameMangler::mangleType; replace the existing code which does #include "clang/Basic/AArch64ACLETypes.def".

(As a followup, we should also add demangling support in llvm/lib/Demangle/MicrosoftDemangle.cpp.)

@llvm/issue-subscribers-clang-codegen

Author: Eli Friedman (efriedma-quic)

Details

The latest MSVC release candidate has support for SVE, and with it a set of new SVE mangling patterns. We should mangle like MSVC instead of using the manglings we invented before (in #141887).

Example code:

#include &lt;arm_sve.h&gt;
void f(svint32_t x) {}

Latest MSVC produces the mangled symbol ?f@@YAX$$_CD@Z.

The relevant code is in MicrosoftCXXNameMangler::mangleType; replace the existing code which does #include "clang/Basic/AArch64ACLETypes.def".

(As a followup, we should also add demangling support in llvm/lib/Demangle/MicrosoftDemangle.cpp.)

[AArch64] Add support for MSVC-style mangling for SVE (#196738)

[simd] Disable SVE implementation of array search for older ClangCL

deps: V8: cherry-pick 820f3d72a638

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[AArch64] Add support for MSVC-style mangling for SVE #196170

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[AArch64] Add support for MSVC-style mangling for SVE #196170

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edwardnvv57k commented on May 6, 2026

llvmorg-github-actions commented on May 6, 2026

llvmorg-github-actions commented on May 6, 2026

llvmorg-github-actions commented on May 6, 2026

llvmorg-github-actions commented on May 6, 2026

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