fix testing "gcc -mpreferred-stack-boundary=2" on x86_64
fix testing "gcc -mpreferred-stack-boundary=2" on x86_64


ddcc/klee-uclibc-0.9.33.2,ysat0/uClibc,foss-for-synopsys-dwc-arc-processors/uClibc,kraj/uClibc,m-labs/uclibc-lm32,czankel/xtensa-uclibc,groundwater/uClibc,ddcc/klee-uclibc-0.9.33.2,majek/uclibc-vx32,gittup/uClibc,mephi42/uClibc,waweber/uclibc-clang,OpenInkpot-archive/iplinux-uclibc,ffainelli/uClibc,atgreen/uClibc-moxie,ffainelli/uClibc,foss-xtensa/uClibc,brgl/uclibc-ng,wbx-github/uclibc-ng,skristiansson/uClibc-or1k,skristiansson/uClibc-or1k,OpenInkpot-archive/iplinux-uclibc,waweber/uclibc-clang,czankel/xtensa-uclibc,ysat0/uClibc,hwoarang/uClibc,atgreen/uClibc-moxie,atgreen/uClibc-moxie,ffainelli/uClibc,foss-xtensa/uClibc,groundwater/uClibc,groundwater/uClibc,m-labs/uclibc-lm32,ndmsystems/uClibc,foss-xtensa/uClibc,foss-xtensa/uClibc,hwoarang/uClibc,kraj/uClibc,kraj/uclibc-ng,hjl-tools/uClibc,groundwater/uClibc,waweber/uclibc-clang,ndmsystems/uClibc,ddcc/klee-uclibc-0.9.33.2,czankel/xtensa-uclibc,ddcc/klee-uclibc-0.9.33.2,kraj/uclibc-ng,OpenInkpot-archive/iplinux-uclibc,hjl-tools/uClibc,m-labs/uclibc-lm32,majek/uclibc-vx32,ysat0/uClibc,skristiansson/uClibc-or1k,majek/uclibc-vx32,kraj/uClibc,kraj/uClibc,foss-for-synopsys-dwc-arc-processors/uClibc,groundwater/uClibc,hjl-tools/uClibc,gittup/uClibc,brgl/uclibc-ng,gittup/uClibc,ndmsystems/uClibc,hjl-tools/uClibc,brgl/uclibc-ng,m-labs/uclibc-lm32,ndmsystems/uClibc,kraj/uclibc-ng,atgreen/uClibc-moxie,skristiansson/uClibc-or1k,czankel/xtensa-uclibc,OpenInkpot-archive/iplinux-uclibc,wbx-github/uclibc-ng,majek/uclibc-vx32,wbx-github/uclibc-ng,mephi42/uClibc,ysat0/uClibc,hjl-tools/uClibc,mephi42/uClibc,hwoarang/uClibc,kraj/uclibc-ng,wbx-github/uclibc-ng,foss-for-synopsys-dwc-arc-processors/uClibc,foss-for-synopsys-dwc-arc-processors/uClibc,hwoarang/uClibc,ffainelli/uClibc,waweber/uclibc-clang,ffainelli/uClibc,brgl/uclibc-ng,mephi42/uClibc,gittup/uClibc