Bug 19211
| Summary: | Internal compiler error | ||||||||
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| Product: | [Retired] Red Hat Linux | Reporter: | Braden McDaniel <braden> | ||||||
| Component: | gcc | Assignee: | Jakub Jelinek <jakub> | ||||||
| Status: | CLOSED WONTFIX | QA Contact: | David Lawrence <dkl> | ||||||
| Severity: | medium | Docs Contact: | |||||||
| Priority: | medium | ||||||||
| Version: | 7.0 | CC: | dr | ||||||
| Target Milestone: | --- | ||||||||
| Target Release: | --- | ||||||||
| Hardware: | i386 | ||||||||
| OS: | Linux | ||||||||
| Whiteboard: | |||||||||
| Fixed In Version: | Doc Type: | Bug Fix | |||||||
| Doc Text: | Story Points: | --- | |||||||
| Clone Of: | Environment: | ||||||||
| Last Closed: | 2000-10-17 14:18:06 UTC | Type: | --- | ||||||
| Regression: | --- | Mount Type: | --- | ||||||
| Documentation: | --- | CRM: | |||||||
| Verified Versions: | Category: | --- | |||||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||||
| Embargoed: | |||||||||
| Attachments: |
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Description
Braden McDaniel
2000-10-17 00:40:16 UTC
Created attachment 4229 [details]
The problem code
Created attachment 4230 [details]
included file for e_hypot.c
You can fix this up by passing -fno-strict-aliasing option to gcc when compiling it, the code does illegal type punning. Even if it compiled fine, it would not work as expected with strict aliasing turned on. I agree that gcc should not ICE on any bad code, but as this ICE goes away since function-as-trees were added to mainline gcc, fixing this would be in my eyes only wasted time (the ICE can be only triggered by the illegal type punning of floating point values under certain specific conditions). Example of illegal code is double d; ... *(int *)&d = 0x...; |