[Bug target/52684] glibc long double math tests fail on sparc 64-bit

[davem at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52684

--- Comment #1 from davem at gcc dot gnu.org 2012-04-29 20:48:49 UTC ---
Created attachment 27263
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=27263
Testcase distilled from glibc's math/libm-test.inc compare_float_internal()

This is distilled from glibc's math/libm-test.inc:compare_float_internal() when
built for long double.

The problem is that, with -ffloat-store, the compiler eliminates the stores
into the stack that setup the stack slots for the arguments passed into
_Qp_div().