[all-commits] [llvm/llvm-project] 7bd370: [libc] Extend the current fenv functions to aarch64.

[Richard Smith via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 7bd3702b64043fb623bf82c1d1a8a2d168142219
      https://github.com/llvm/llvm-project/commit/7bd3702b64043fb623bf82c1d1a8a2d168142219
  Author: Siva Chandra <sivachandra at google.com>
  Date:   2021-01-19 (Tue, 19 Jan 2021)

  Changed paths:
    M libc/config/linux/aarch64/entrypoints.txt
    M libc/utils/FPUtil/FEnv.h
    A libc/utils/FPUtil/aarch64/FEnv.h

  Log Message:
  -----------
  [libc] Extend the current fenv functions to aarch64.

This change does not try to move the common parts of x86 and aarch64 and
build few abstractions over them. While this is possible, x86 story
needs a bit of cleanup, especially around manipulation of the mxcsr
register. Moreover, on x86 one can raise exceptions without performing
exception raising operations. So, all of this can be done in follow up
patches.

Reviewed By: lntue

Differential Revision: https://reviews.llvm.org/D94947


  Commit: 5a684b70dc74f9f671f8eb61993a25769ec68117
      https://github.com/llvm/llvm-project/commit/5a684b70dc74f9f671f8eb61993a25769ec68117
  Author: Richard Smith <richard at metafoo.co.uk>
  Date:   2021-01-19 (Tue, 19 Jan 2021)

  Changed paths:
    M clang/lib/Sema/SemaTemplateInstantiate.cpp
    M clang/test/SemaTemplate/temp_arg_nontype_cxx17.cpp

  Log Message:
  -----------
  Ensure we don't strip the ConstantExpr carrying a non-type template
argument's value off it during substitution.


  Commit: da986511fb9da1a46a0ca4dba2e49e2426036303
      https://github.com/llvm/llvm-project/commit/da986511fb9da1a46a0ca4dba2e49e2426036303
  Author: Richard Smith <richard at metafoo.co.uk>
  Date:   2021-01-19 (Tue, 19 Jan 2021)

  Changed paths:
    M clang/include/clang/AST/DependenceFlags.h
    M clang/lib/AST/ASTContext.cpp
    M clang/lib/AST/ItaniumMangle.cpp
    M clang/lib/AST/Type.cpp
    M clang/test/CXX/drs/dr20xx.cpp
    M clang/test/CodeGenCXX/mangle-subst.cpp
    M clang/test/Sema/invalid-bitwidth-expr.mm
    M clang/test/SemaCXX/coroutines.cpp
    M clang/test/SemaCXX/invalid-template-base-specifier.cpp
    M clang/test/SemaTemplate/dependent-expr.cpp
    M clang/test/SemaTemplate/temp_arg_template_cxx1z.cpp
    M clang/www/cxx_dr_status.html

  Log Message:
  -----------
  Revert "DR2064: decltype(E) is only a dependent type if E is type-dependent, not
if E is merely instantiation-dependent."

This change leaves us unable to distinguish between different function
templates that differ in only instantiation-dependent ways, for example

template<typename T> decltype(int(T())) f();
template<typename T> decltype(int(T(0))) f();

We'll need substantially better support for types that are
instantiation-dependent but not dependent before we can go ahead with
this change.

This reverts commit e3065ce238475ec202c707f4c58d90df171626ca.


Compare: https://github.com/llvm/llvm-project/compare/b272698de790...da986511fb9d