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[Bug rtl-optimization/28096] [4.2 regression] fdlibm/strtod.c miscompile
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From: |
ebotcazou at gcc dot gnu dot org |
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Subject: |
[Bug rtl-optimization/28096] [4.2 regression] fdlibm/strtod.c miscompiled at -O2 |
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Date: |
29 Sep 2006 20:40:48 -0000 |
------- Comment #19 from ebotcazou at gcc dot gnu dot org 2006-09-29 20:40
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> I don't think this bug has anything to do with excess precision. Valgrind
> shows that, when compiled at -O2, we are reading from uninitialized memory.
Confirmed:
andl -144(%ebp), %ebx <--- bogus value in %ebx
movl %eax, -144(%ebp)
Swap the lines and all works fine.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28096
- [Bug rtl-optimization/28096] [4.2 regression] fdlibm/strtod.c miscompiled at -O2, ebotcazou at gcc dot gnu dot org, 2006/09/20
- [Bug rtl-optimization/28096] [4.2 regression] fdlibm/strtod.c miscompiled at -O2, ebotcazou at gcc dot gnu dot org, 2006/09/20
- [Bug rtl-optimization/28096] [4.2 regression] fdlibm/strtod.c miscompiled at -O2, mmitchel at gcc dot gnu dot org, 2006/09/20
- [Bug rtl-optimization/28096] [4.2 regression] fdlibm/strtod.c miscompiled at -O2,
ebotcazou at gcc dot gnu dot org <=
- [Bug rtl-optimization/28096] [4.2 regression] fdlibm/strtod.c miscompiled at -O2, pinskia at gcc dot gnu dot org, 2006/09/30
- [Bug rtl-optimization/28096] [4.2 regression] fdlibm/strtod.c miscompiled at -O2, ebotcazou at gcc dot gnu dot org, 2006/09/30
- [Bug rtl-optimization/28096] [4.2 regression] fdlibm/strtod.c miscompiled at -O2, ebotcazou at gcc dot gnu dot org, 2006/09/30
- [Bug rtl-optimization/28096] [4.2 regression] fdlibm/strtod.c miscompiled at -O2, ebotcazou at gcc dot gnu dot org, 2006/09/30