[llvm-bugs] [Bug 44776] New: Compilation doesn't terminate with -ffp-model=strict, -float-abi=hard, and --target=armeb-none-eabihf

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=44776

            Bug ID: 44776
           Summary: Compilation doesn't terminate with -ffp-model=strict,
                    -float-abi=hard, and --target=armeb-none-eabihf
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Backend: ARM
          Assignee: unassignedbugs at nondot.org
          Reporter: jjaoudi at waymo.com
                CC: llvm-bugs at lists.llvm.org, peter.smith at linaro.org,
                    Ties.Stuij at arm.com

Trying to compile:

"""
#include <cmath>

int Foo(float a) {
  if (a / nan("")) return 0;
  return 1;
}
"""

never terminates, with the given flags:

-mbig-endian
-mcpu=cortex-r4
-mthumb
-mfpu=vfpv3-d16
-mfloat-abi=hard
--target=armeb-none-eabihf
-ffp-model=strict

Changing the fp-model to precise or float-abi to soft allows compilation to
terminate. The issue appears to related to exceptions with hard-float.

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