[all-commits] [llvm/llvm-project] a65092: [SVE] Fix inline assembly parsing crash

[david-arm via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: a65092040ad4fefcdad18382781090839cad3b67
      https://github.com/llvm/llvm-project/commit/a65092040ad4fefcdad18382781090839cad3b67
  Author: David Sherwood <david.sherwood at arm.com>
  Date:   2021-01-04 (Mon, 04 Jan 2021)

  Changed paths:
    M llvm/lib/Target/AArch64/AArch64AsmPrinter.cpp
    M llvm/test/CodeGen/AArch64/inline-asm-constraints-bad-sve.ll

  Log Message:
  -----------
  [SVE] Fix inline assembly parsing crash

This patch fixes a crash encountered when compiling this code:

  ...
  float16_t a;
  __asm__("fminv %h[a], %[b], %[c].h"
          : [a] "=r" (a)
          : [b] "Upl" (b), [c] "w" (c))

The issue here is when using the 'h' modifier for a register
constraint 'r'.

Differential Revision: https://reviews.llvm.org/D93537