forked from OSchip/llvm-project
7c11da0cfd
This allows you to declare a function with a name of your choice (say `foo`), but have clang treat it as if it were a builtin function (say `__builtin_foo`), by writing static __inline__ __attribute__((__clang_arm_mve_alias(__builtin_foo))) int foo(args); I'm intending to use this for the ACLE intrinsics for MVE, which have to be polymorphic on their argument types and also need to be implemented by builtins. To avoid having to implement the polymorphism with several layers of nested _Generic and make error reporting hideous, I want to make all the user-facing intrinsics correspond directly to clang builtins, so that after clang resolves __attribute__((overloadable)) polymorphism it's already holding the right BuiltinID for the intrinsic it selected. However, this commit itself just introduces the new attribute, and doesn't use it for anything. To avoid unanticipated side effects if this attribute is used to make aliases to other builtins, there's a restriction mechanism: only (BuiltinID, alias) pairs that are approved by the function ArmMveAliasValid() will be permitted. At present, that function doesn't permit anything, because the Tablegen that will generate its list of valid pairs isn't yet implemented. So the only test of this facility is one that checks that an unapproved builtin _can't_ be aliased. Reviewers: dmgreen, miyuki, ostannard Subscribers: cfe-commits Tags: #clang Differential Revision: https://reviews.llvm.org/D67159 |
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| .. | ||
| Inputs | ||
| amdgcn.languageOptsOpenCL.cl | ||
| attr-source-range.cpp | ||
| backend-optimization-failure-nodbg.cpp | ||
| backend-optimization-failure.cpp | ||
| backend-resource-limit-diagnostics.cl | ||
| backend-stack-frame-diagnostics-fallback.cpp | ||
| backend-stack-frame-diagnostics.cpp | ||
| caret-diags-macros.c | ||
| caret-diags-multiline.cpp | ||
| caret-diags-scratch-buffer.c | ||
| cc1as-asm-debug.s | ||
| cc1as-asm.s | ||
| cc1as-compress.s | ||
| cc1as-split-dwarf.s | ||
| dev-fd-fs.c | ||
| diag-aka-types.cpp | ||
| diag-format.c | ||
| diag-greatergreater.cpp | ||
| diag-line-wrapping.cpp | ||
| diag-macro-backtrace.c | ||
| diag-macro-backtrace2.c | ||
| diag-mapping.c | ||
| diag-mapping2.c | ||
| diag-null-bytes-in-line.cpp | ||
| diag-presumed.c | ||
| diag-special-chars.c | ||
| diag-template-diffing-color.cpp | ||
| diag-template-diffing-cxx98.cpp | ||
| diag-template-diffing.cpp | ||
| diag-trailing-null-bytes.cpp | ||
| diag-verify.cpp | ||
| diagnostic-crash.cpp | ||
| driver-verify.c | ||
| emit-html-insert.c | ||
| emit-html.c | ||
| error-limit-multiple-notes.cpp | ||
| error-limit.c | ||
| find-diagnostic-id.c | ||
| freebsd-arm-size_t.c | ||
| include-stack-for-note-flag.cpp | ||
| integer-literal-printing.cpp | ||
| interpreter.c | ||
| languageOptsOpenCL.cl | ||
| loop-opt-setup.c | ||
| macro-backtrace.c | ||
| message-length.c | ||
| no-warn-in-system-macro.c | ||
| no-warn-in-system-macro.c.inc | ||
| nvptx.languageOptsOpenCL.cl | ||
| permissions.cpp | ||
| pr32207.c | ||
| pragma-attribute-cxx.cpp | ||
| pragma-attribute-objc.m | ||
| pragma-attribute-strict-subjects.c | ||
| pragma-attribute-supported-attributes-list.test | ||
| predefines.c | ||
| printer.c | ||
| r600.languageOptsOpenCL.cl | ||
| reduced-diags-macros-backtrace.cpp | ||
| reduced-diags-macros.cpp | ||
| remap-file.c | ||
| serialized-diags-bcanalyzer.c | ||
| serialized-diags-driver.c | ||
| serialized-diags-frontend.c | ||
| serialized-diags-no-category.c | ||
| serialized-diags-no-issue.c | ||
| serialized-diags-really-long-text.cpp | ||
| serialized-diags-single-issue.c | ||
| serialized-diags-stable.c | ||
| serialized-diags.c | ||
| serialized-diags.h | ||
| serialized-diags.m | ||
| show-diag-options.c | ||
| tabstop.c | ||
| target-invalid-cpu-note.c | ||
| target-parser.c | ||
| unnecessary-elipses.cpp | ||
| unprintable.c | ||
| verify.c | ||
| warn-in-system-header.c | ||
| warn-in-system-header.h | ||
| warn-in-system-macro-def.c | ||
| warn-in-system-macro-def.c.inc | ||
| warn-sysheader.cpp | ||
| warning-flags-enabled.c | ||
| warning-flags-tree.c | ||
| warning-flags.c | ||
| win32-macho.c | ||
| working-directory.c | ||
| wrong-encoding.c | ||
| wrong-encoding2.c | ||