[all-commits] [llvm/llvm-project] a4e8f7: [builtins] Improve compatibility with 16 bit targets

[Anatoly Trosinenko via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: a4e8f7fe3f38085c0fdd6e34e870f8e9c6c72861
      https://github.com/llvm/llvm-project/commit/a4e8f7fe3f38085c0fdd6e34e870f8e9c6c72861
  Author: Anatoly Trosinenko <atrosinenko at accesssoftek.com>
  Date:   2020-06-26 (Fri, 26 Jun 2020)

  Changed paths:
    M compiler-rt/lib/builtins/floatdidf.c
    M compiler-rt/lib/builtins/floatundidf.c
    M compiler-rt/lib/builtins/fp_lib.h

  Log Message:
  -----------
  [builtins] Improve compatibility with 16 bit targets

Some parts of existing codebase assume the default `int` type to be (at least) 32 bit wide. On 16 bit targets such as MSP430 this may cause Undefined Behavior or results being defined but incorrect.

Differential Revision: https://reviews.llvm.org/D81408