Package: gcc-4.1 Severity: minor Tags: upstream You get an ICE in in reload_cse_simplify_operands, at postreload.c:393 with some invalid assembler command. This affects 3.x up to current 4.x mainline. On e.g. IA-64 you see it with:
[EMAIL PROTECTED]:~/src/svgalib-1.4.3$ /usr/lib/gcc-snapshot/bin/gcc -c -O2 x.c x.c: In function 'f': x.c:3: error: impossible register constraint in 'asm' x.c:3: error: impossible register constraint in 'asm' x.c:3: error: impossible register constraint in 'asm' x.c:6: error: unrecognizable insn: (insn 11 7 23 2 (set (reg:SI 2 r2) (asm_operands/v:SI ("inb %1,%0") ("=a") 0 [ (reg:HI 112 in0) ] [ (asm_input:HI ("d")) ] ("x.c") 3)) -1 (nil) (nil)) x.c:6: internal compiler error: in reload_cse_simplify_operands, at postreload.c:393 Please submit a full bug report, with preprocessed source if appropriate. See <URL:http://gcc.gnu.org/bugs.html> for instructions. For Debian GNU/Linux specific bug reporting instructions, see <URL:file:///usr/share/doc/gcc-4.1/README.Bugs>. [EMAIL PROTECTED]:~/src/svgalib-1.4.3$ cat x.c void f(int port) { __asm__ volatile ("inb %1,%0" :"=a" (port) :"d"((unsigned short) port)); } This is upstream PR21299. > Automatic build of svgalib_1:1.4.3-23 on coconut0.coconut.gelato.org by > sbuild/ia64 0.49 ... > cc -Wall -Wstrict-prototypes -fPIC -I/build/tbm/svgalib-1.4.3/include -I. > -I/build/tbm/svgalib-1.4.3/src -I/build/tbm/svgalib-1.4.3/src/config > -fomit-frame-pointer -O2 -fno-strength-reduce -pipe -g -DNO_ASSEMBLY > -DSVGALIB_CONFIG_FILE=\"/etc/vga/libvga.config\" -DALLOW_MOUSE_OVERRIDE > -DET4000_REGS=\"/etc/vga/libvga.et4000\" -DDYNAMIC -DROOT_VC_SHORTCUT > -DINCLUDE_ET4000_DRIVER -DINCLUDE_ET4000_DRIVER_TEST -DINCLUDE_CIRRUS_DRIVER > -DINCLUDE_CIRRUS_DRIVER_TEST -DINCLUDE_TVGA_DRIVER -DINCLUDE_TVGA_DRIVER_TEST > -DINCLUDE_OAK_DRIVER -DINCLUDE_OAK_DRIVER_TEST -DINCLUDE_EGA_DRIVER > -DINCLUDE_EGA_DRIVER_TEST -DINCLUDE_MACH32_DRIVER > -DINCLUDE_MACH32_DRIVER_TEST -DINCLUDE_S3_DRIVER -DINCLUDE_S3_DRIVER_TEST > -DINCLUDE_ET3000_DRIVER -DINCLUDE_ET3000_DRIVER_TEST > -DINCLUDE_GVGA6400_DRIVER -DINCLUDE_GVGA6400_DRIVER_TEST -DINCLUDE_ARK_DRIVER > -DINCLUDE_ATI_DRIVER -DINCLUDE_ATI_DRIVER_TEST -DINCLUDE_ALI_DRIVER > -DINCLUDE_ALI_DRIVER_TEST -DINCLUDE_CHIPS_DRIVER -DINCLUDE_CHIPS_DRIVER_TEST > -DINCLUDE_APM_DRIVER -DINCLUDE_APM_DRIVER_TEST -DINCLUDE_NV3_DRIVER > -DINCLUDE_NV3_DRIVER_TEST -DINCLUDE_G400_DRIVER -DINCLUDE_G400_DRIVER_TEST > -DINCLUDE_R128_DRIVER -DINCLUDE_R128_DRIVER_TEST -DINCLUDE_MX_DRIVER > -DINCLUDE_MX_DRIVER_TEST -DINCLUDE_SAVAGE_DRIVER -DINCLUDE_SAVAGE_DRIVER_TEST > -DINCLUDE_PARADISE_DRIVER -DINCLUDE_PARADISE_DRIVER_TEST > -DINCLUDE_RAGE_DRIVER -DINCLUDE_RAGE_DRIVER_TEST -DINCLUDE_BANSHEE_DRIVER > -DINCLUDE_BANSHEE_DRIVER_TEST -DINCLUDE_SIS_DRIVER -DINCLUDE_SIS_DRIVER_TEST > -DINCLUDE_I740_DRIVER -DINCLUDE_I740_DRIVER_TEST -DINCLUDE_LAGUNA_DRIVER > -DINCLUDE_LAGUNA_DRIVER_TEST -DINCLUDE_ET6000_DRIVER > -DINCLUDE_ET6000_DRIVER_TEST -DINCLUDE_NEO_DRIVER -DINCLUDE_NEO_DRIVER_TEST > -DINCLUDE_FBDEV_DRIVER -c -o vga.o /build/tbm/svgalib-1.4.3/src/vga.c > /build/tbm/svgalib-1.4.3/src/vga.c:317: warning: 'release_acquire' defined > but not used > /build/tbm/svgalib-1.4.3/src/vga.c: In function 'savepalette': > /build/tbm/svgalib-1.4.3/src/libvga.h:275: error: impossible register > constraint in 'asm' > /build/tbm/svgalib-1.4.3/src/libvga.h:294: error: impossible register > constraint in 'asm' > /build/tbm/svgalib-1.4.3/src/libvga.h:294: error: impossible register > constraint in 'asm' > /build/tbm/svgalib-1.4.3/src/libvga.h:294: error: impossible register > constraint in 'asm' > /build/tbm/svgalib-1.4.3/src/libvga.h:275: error: impossible register > constraint in 'asm' > /build/tbm/svgalib-1.4.3/src/libvga.h:294: error: impossible register > constraint in 'asm' > /build/tbm/svgalib-1.4.3/src/libvga.h:294: error: impossible register > constraint in 'asm' > /build/tbm/svgalib-1.4.3/src/libvga.h:294: error: impossible register > constraint in 'asm' > /build/tbm/svgalib-1.4.3/src/libvga.h:275: error: impossible register > constraint in 'asm' > /build/tbm/svgalib-1.4.3/src/libvga.h:294: error: impossible register > constraint in 'asm' > /build/tbm/svgalib-1.4.3/src/libvga.h:294: error: impossible register > constraint in 'asm' > /build/tbm/svgalib-1.4.3/src/libvga.h:294: error: impossible register > constraint in 'asm' > /build/tbm/svgalib-1.4.3/src/vga.c:1630: error: unrecognizable insn: > (insn 58 122 123 8 /build/tbm/svgalib-1.4.3/src/libvga.h:294 (set (reg:QI 2 > r2) > (asm_operands/v:QI ("inb %1,%0") ("=a") 0 [ > (reg:HI 2 r2) > ] > [ > (asm_input:HI ("d")) > ] ("/build/tbm/svgalib-1.4.3/src/libvga.h") 294)) -1 (nil) > (nil)) > /build/tbm/svgalib-1.4.3/src/vga.c:1630: internal compiler error: in > reload_cse_simplify_operands, at postreload.c:393 > Please submit a full bug report, > with preprocessed source if appropriate. > See <URL:http://gcc.gnu.org/bugs.html> for instructions. > For Debian GNU/Linux specific bug reporting instructions, > see <URL:file:///usr/share/doc/gcc-4.1/README.Bugs>. > make[2]: *** [vga.o] Error 1 -- Martin Michlmayr http://www.cyrius.com/