[llvm-bugs] [Bug 49952] New: MMA - crash when ArgPromotion promotes pointer to quad/pair types

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=49952

            Bug ID: 49952
           Summary: MMA - crash when ArgPromotion promotes pointer to
                    quad/pair types
           Product: clang
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: release blocker
          Priority: P
         Component: C
          Assignee: unassignedclangbugs at nondot.org
          Reporter: saghir.ibm at gmail.com
                CC: blitzrakete at gmail.com, dgregor at apple.com,
                    erik.pilkington at gmail.com, llvm-bugs at lists.llvm.org,
                    richard-llvm at metafoo.co.uk

Minimal test case:

static void __attribute__((noinline)) print_acc(__vector_quad *a) {
  vector unsigned char a0[4];
  __builtin_mma_disassemble_acc((void *)(a0), a);
  print_values(a0[0]);
}
void test(__vector_quad *a, vector unsigned char ac) {
  __builtin_mma_xvf32ger(a, ac, ac);
  print_acc(a);
}

To reproduce:
clang -O3 -mcpu=pwr10 t.c -S

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