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bootstrap comparison failure ppc64 FreeBSD
- From: Andreas Tobler <andreast-list at fgznet dot ch>
- To: GCC Mailing List <gcc at gcc dot gnu dot org>
- Date: Wed, 14 Nov 2012 18:51:15 +0100
- Subject: bootstrap comparison failure ppc64 FreeBSD
Hello,
on trunk (193501) I get a comparison failure:
---
Bootstrap comparison failure!
gcc/tree-ssa-forwprop.o differs
---
This is with --disable-checking. Leaving disable-checking away, the
bootstrap completes succesfully.
---
andreast% stage2-gcc/xgcc -v
Using built-in specs.
COLLECT_GCC=stage2-gcc/xgcc
Target: powerpc64-unknown-freebsd10.0
Configured with: /export/devel/net/src/gcc/head/gcc/configure
--prefix=/export/build/src/gcc/head/testbin --with-gmp=/usr/local
--disable-lto --disable-nls --enable-languages=c,c++,fortran
--with-as=/usr/local/bin/as --with-ld=/usr/local/bin/ld
--disable-multilib --disable-checking
Thread model: posix
---
Below the diff of objdump -dS of the two files.
Anyone an idea what's going wrong?
TIA,
Andreas
--- stage2-tree-ssa-forwprop.dump 2012-11-14 18:40:23.000000000 +0100
+++ stage3-tree-ssa-forwprop.dump 2012-11-14 18:40:33.000000000 +0100
@@ -1,5 +1,5 @@
-stage2-gcc/tree-ssa-forwprop.o: file format elf64-powerpc
+stage3-gcc/tree-ssa-forwprop.o: file format elf64-powerpc
Disassembly of section .text:
@@ -9664,8 +9664,8 @@
964c: 40 9e f4 e8 bne+ cr7,8b34
<._ZL33ssa_forward_propagate_and_combinev+0x1974>
9650: 38 a0 00 00 li r5,0
9654: 42 40 00 b4 bdz- 9708
<._ZL33ssa_forward_propagate_and_combinev+0x2548>
- 9658: e8 89 00 09 ldu r4,8(r9)
- 965c: 39 08 00 01 addi r8,r8,1
+ 9658: 39 08 00 01 addi r8,r8,1
+ 965c: e8 89 00 09 ldu r4,8(r9)
9660: 4b ff ff d0 b 9630
<._ZL33ssa_forward_propagate_and_combinev+0x2470>
9664: 38 c0 00 00 li r6,0
9668: 4b ff ff ec b 9654
<._ZL33ssa_forward_propagate_and_combinev+0x2494>