Jeff, Am 29.06.2017 schrieb Jeff Law <l...@redhat.com>: > Ideally we'd like to have a testcase for this in the regression suite. > > If you could provide the .i file and options used which generated the > incorrect ffs instruction I can use the reduction tools with a cross > compiler to produce a nice simple test for the testsuite.
I put the corresponding .i file at: http://www.netbsd.org/~flxd/scsipi_base.i.gz See line 7638: bit = __builtin_ffs(periph->periph_freetags[word]); Command/Options used which generated the incorrect ffs instruction: /nb8/obj/tooldir.NetBSD-7.0-amd64/bin/vax--netbsdelf-gcc -fno-pic -ffreestanding -fno-zero-initialized-in-bss -Os -fno-strict-aliasing -fno-common -std=gnu99 -Werror -Wall -Wno-main -Wno-format-zero-length -Wpointer-arith -Wmissing-prototypes -Wstrict-prototypes -Wold-style-definition -Wswitch -Wshadow -Wcast-qual -Wwrite-strings -Wno-unreachable-code -Wno-pointer-sign -Wno-attributes -Wno-sign-compare --sysroot=/nb8/obj/destdir.vax -D_VAX_INLINE_ -I. -I/nb8/src/sys/../common/lib/libx86emu -I/nb8/src/sys/../common/include -I/nb8/src/sys/arch -I/nb8/src/sys -nostdinc -D_KERNEL -D_KERNEL_OPT -std=gnu99 -I/nb8/src/sys/lib/libkern/../../../common/lib/libc/quad -I/nb8/src/sys/lib/libkern/../../../common/lib/libc/string -I/nb8/src/sys/lib/libkern/../../../common/lib/libc/arch/vax/string -c /nb8/src/sys/dev/scsipi/scsipi_base.c -o scsipi_base.o Best regards, Felix
