shrink-wrap: Testcases for separate shrink-wrapping
A few testcases for separate shrink-wrapping: test whether it works in a
trivial case; whether it creates more than one prologue where that is
useful; whether it puts prologues inside a loop if that is cheaper.
gcc/testsuite/
* gcc.target/powerpc/shrink-wrap-separate-0.c: New testcase.
* gcc.target/powerpc/shrink-wrap-separate-1.c: New testcase.
* gcc.target/powerpc/shrink-wrap-separate-2.c: New testcase.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@241066 138bc75d-0d04-0410-961f-82ee72b054a4