Regressions on trunk at revision 237272 vs revision 237251

[H.J. Lu Intel64 -fpic -mcmodel=medium -mcmodel=large]

New failures:

New passes:
FAIL: gcc.target/i386/interrupt-12.c scan-assembler-not (push|pop)q[\\t ]*%rax
FAIL: gcc.target/i386/interrupt-12.c scan-assembler-times leave 1
FAIL: gcc.target/i386/interrupt-12.c scan-assembler-times movq[\\t ]*-8\\(%(?:r|e)bp\\),[\\t ]*%rdi 1
FAIL: gcc.target/i386/interrupt-13.c scan-assembler-not (push|pop)q[\\t ]*%rax
FAIL: gcc.target/i386/interrupt-13.c scan-assembler-times leave 1
FAIL: gcc.target/i386/interrupt-13.c scan-assembler-times movq[\\t ]*-8\\(%(?:r|e)bp\\),[\\t ]*%rdi 1
FAIL: gcc.target/i386/interrupt-14.c scan-assembler-not (push|pop)(l|q)[\\t ]*%(r|e)(a|b|c|d)x
FAIL: gcc.target/i386/interrupt-14.c scan-assembler-times movq[\\t ]*-8\\(%(?:r|e)bp\\),[\\t ]*%rdi 2
FAIL: gcc.target/i386/interrupt-15.c scan-assembler-not (push|pop)q[\\t ]*%rax
FAIL: gcc.target/i386/interrupt-15.c scan-assembler-times leave 2
FAIL: gcc.target/i386/interrupt-15.c scan-assembler-times movq[\\t ]*-8\\(%(?:r|e)bp\\),[\\t ]*%rdi 2
FAIL: gcc.target/i386/interrupt-24.c scan-assembler-not (push|pop)(l|q)[\\t ]*%(r|e)(a|b|c|d)x