Bug 14060 – Internal error: backend/cg87.c 3394 only in MacOSX

I found this issue from the auto-tester result of my PR: https://github.com/D-Programming-Language/dmd/pull/4331 Following code is a part of test/runnable/interpret.d. With -m32 -O -inline -release, the code would cause following backend ICE. Internal error: backend/cg87.c 3394 If you add writefln call in the compare function, the ICE would disappear. version(addWriteln) import std.stdio; else extern(C) int printf(const char*, ...); void test113() { import core.math; static void compare(real a, real b) { version(addWriteln) writefln("compare(%30.30f, %30.30f);", a, b); assert(fabs(a - b) < 128 * real.epsilon); } static if (__traits(compiles, (){ enum real ctval1 = yl2x(3.14, 1); })) { enum real ctval1 = yl2x(3.14, 1); enum real ctval2 = yl2x(2e1500L, 3); enum real ctval3 = yl2x(1, 5); real rtval1 = yl2x(3.14, 1); real rtval2 = yl2x(2e1500L, 3); real rtval3 = yl2x(1, 5); compare(ctval1, rtval1); compare(ctval2, rtval2); compare(ctval3, rtval3); } static if (__traits(compiles, (){ enum real ctval4 = yl2xp1(3.14, 1); })) { enum real ctval4 = yl2xp1(3.14, 1); enum real ctval5 = yl2xp1(2e1500L, 3); enum real ctval6 = yl2xp1(1, 5); real rtval4 = yl2xp1(3.14, 1); real rtval5 = yl2xp1(2e1500L, 3); real rtval6 = yl2xp1(1, 5); compare(ctval4, rtval4); compare(ctval5, rtval5); compare(ctval6, rtval6); } } int main() { test113(); printf("Success\n"); return 0; }

MacOSX 32 bits have been retired, so closing as WONTFIX.