------- Comment #3 from gmorain at gmail dot com 2007-05-19 02:17 ------- (In reply to comment #2) > I can reproduce the failure on powerpc-linux-gnu with 4.1.0 but it works on > the > trunk. combine is doing something wrong. >
I tested it on 4.2.0, and it works OK. Except, I can't understand why the stack frame is 32 bytes instead of 16. powerpc-elf-objdump -S foo.o foo.o: file format elf32-powerpc Disassembly of section .text: 00000000 <foo>: 0: 94 21 ff e0 stwu r1,-32(r1) 4: 7c 08 02 a6 mflr r0 8: 93 a1 00 14 stw r29,20(r1) c: 90 01 00 24 stw r0,36(r1) 10: 7c 7d 1b 78 mr r29,r3 14: 48 00 00 01 bl 14 <foo+0x14> 18: 53 a3 c0 0e rlwimi r3,r29,24,0,7 1c: 48 00 00 01 bl 1c <foo+0x1c> 20: 80 01 00 24 lwz r0,36(r1) 24: 7c 08 03 a6 mtlr r0 28: 83 a1 00 14 lwz r29,20(r1) 2c: 38 21 00 20 addi r1,r1,32 30: 4e 80 00 20 blr -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31830
