[all-commits] [llvm/llvm-project] 19e757: [MSP430] Declare comparison LibCalls as returning ...

[Anatoly Trosinenko via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 19e75717eff2c22e6643addcc44caa8dc2f0125f
      https://github.com/llvm/llvm-project/commit/19e75717eff2c22e6643addcc44caa8dc2f0125f
  Author: Anatoly Trosinenko <atrosinenko at accesssoftek.com>
  Date:   2020-06-30 (Tue, 30 Jun 2020)

  Changed paths:
    M llvm/lib/Target/MSP430/MSP430ISelLowering.h
    A llvm/test/CodeGen/MSP430/cmp-return-type.ll

  Log Message:
  -----------
  [MSP430] Declare comparison LibCalls as returning i16 instead of i32

For TI's distribution of msp430-gcc
```
msp430-elf-gcc -S -o- -Os -x c - <<< "int f(float a, float b) { return a != b; }"
```
does not mention `R13` at all. `__libgcc_cmp_return__` machine mode is 2 byte on MSP430, as well.

Differential Revision: https://reviews.llvm.org/D82635