>Number:         23467
>Category:       toolchain
>Synopsis:       mach_vm.c compilation fail with an internal compiler error
>Confidential:   no
>Severity:       critical
>Priority:       medium
>Responsible:    toolchain-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon Nov 17 17:04:00 UTC 2003
>Closed-Date:
>Last-Modified:
>Originator:     Serge Basterot
>Release:        NetBSD 1.6ZE, 20031024 releng binaries and 20031101 tar_files
>Organization:
>Environment:
System: NetBSD netbook 1.6ZE NetBSD 1.6ZE (RAMDISK) #0: Sat Nov 15 22:56:56 UTC 2003 serj@netbook:/usr/src/sys/arch/macppc/compile/RAMDISK macppc
Architecture: powerpc
Machine: macppc
>Description:
while compiling a new kernel with COMPAT_DARWIN,
COMPAT_MACH and EXEC_MACHO options uncommented, mach_vm.c failed with an
internal compiler error in propagate_one_insn, at flow.c:1642. Here is
the output :
cc  -msoft-float      -ffreestanding  -O2 -Wreturn-type -Werror -Wall -Wno-main -Wno-format-zero-length -Wpointer-arith -Wmissing-prototypes -Wstrict-prototypes -Wno-sign-compare  -Dmacppc -I.  -I../../../../arch -I../../../.. -nostdinc -DLKM -DDIAGNOSTIC -DZS_CONSOLE_ABORT -DOFB_ENABLE_CACHE -DMAXUSERS=32 -D_KERNEL -D_KERNEL_OPT   -c ../../../../compat/mach/mach_vm.c
../../../../compat/mach/mach_vm.c: In function `mach_vm_wire':
../../../../compat/mach/mach_vm.c:304: error: Attempt to delete prologue/epilogue insn:
(insn/f 215 214 216 0 0x0 (set (mem:SI (plus:SI (reg/f:SI 1 r1)
                (const_int 84 [0x54])) [0 S4 A32])
		(reg:SI 0 r0)) -1 (nil)
	(expr_list:REG_FRAME_RELATED_EXPR (set (mem:SI (plus:SI (reg/f:SI 1 r1)
					(const_int 84 [0x54])) [0 S4 A32])
			(reg:SI 65 lr))
		(nil)))
../../../../compat/mach/mach_vm.c:304: internal compiler error: in propagate_one_insn, at flow.c:1642
>How-To-Repeat:
install a base system with 20031110 macppc binaries
from releng and install sources tree with 20031101 tar_files, then
compile a new kernel with COMPAT_DARWIN, COMPAT_MACH and EXEC_MACHO
options uncommented.
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted: