https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61923
--- Comment #3 from Markus Trippelsdorf <trippels at gcc dot gnu.org> --- Created attachment 33200 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33200&action=edit original testcase The issue is more visible with the original attached testcase: markus@x4 linux % diff -u inode.gkd inode.gk.gkd --- inode.gkd 2014-07-29 08:52:00.453657959 +0200 +++ inode.gk.gkd 2014-07-29 08:52:01.636965368 +0200 @@ -4270,15 +4270,6 @@ (nil)))) (code_label 158 0 0 16 158 "" [1 uses]) (note# 0 0 [bb 16] NOTE_INSN_BASIC_BLOCK) -(insn:TI# 0 0 16 (set (reg:SI 37 r8) - (const_int 2 [0x2])) fs/ext4/inode.c:1632# {*movsi_internal} - (nil)) -(insn# 0 0 16 (set (reg:DI 2 cx) - (const_int -1 [0xffffffffffffffff])) fs/ext4/inode.c:1632# {*movdi_internal} - (nil)) -(insn# 0 0 16 (set (reg:DI 5 di) - (reg/v/f:DI 44 r15 [orig:208 inode ] [208])) fs/ext4/inode.c:1632# {*movdi_internal} - (nil)) (insn:TI# 0 0 16 (set (reg:SI 1 dx) (mem/c:SI (plus:DI (reg/f:DI 7 sp) (const_int 28 [0x1c])) [ map.m_len+0 S4 A32])) fs/ext4/inode.c:1632# {*movsi_internal} @@ -4287,6 +4278,15 @@ (mem/c:SI (plus:DI (reg/f:DI 7 sp) (const_int 24 [0x18])) [ map.m_lblk+0 S4 A64])) fs/ext4/inode.c:1632# {*movsi_internal} (nil)) +(insn# 0 0 16 (set (reg:SI 37 r8) + (const_int 2 [0x2])) fs/ext4/inode.c:1632# {*movsi_internal} + (nil)) +(insn:TI# 0 0 16 (set (reg:DI 2 cx) + (const_int -1 [0xffffffffffffffff])) fs/ext4/inode.c:1632# {*movdi_internal} + (nil)) +(insn# 0 0 16 (set (reg:DI 5 di) + (reg/v/f:DI 44 r15 [orig:208 inode ] [208])) fs/ext4/inode.c:1632# {*movdi_internal} + (nil)) (call_insn:TI# 0 0 16 (set (reg:SI 0 ax) (call (mem:QI (symbol_ref:DI ("ext4_es_insert_extent") [flags 0x41] <function_decl # ext4_es_insert_extent>) [ ext4_es_insert_extent S1 A8]) (const_int 0 [0]))) fs/ext4/inode.c:1632# {*call_value}