Bug 72499

Summary: gcc Internal compiler error in verify_local_live_at_start
Product: [Retired] Red Hat Raw Hide Reporter: Need Real Name <ned>
Component: gccAssignee: Jakub Jelinek <jakub>
Status: CLOSED NEXTRELEASE QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: 1.0   
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: 2004-10-01 16:23:21 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:
Description Flags
Preprocessed C source to trigger gcc optimzation bug none

Description Need Real Name 2002-08-24 17:28:46 UTC 
Description of Problem: 
 
Compilation of attached file with certain optimization flags causes this 
internal compiler error: 
 
/home/ned/Squeak/Squeak-3.2-5devel/src/vm/intplugins/B2DPlugin/B2DPlugin.c: In 
function `loadArrayTransformFromintolength': 
/home/ned/Squeak/Squeak-3.2-5devel/src/vm/intplugins/B2DPlugin/B2DPlugin.c:9806: 
Internal compiler error in verify_local_live_at_start, at flow.c:583 
 
gcc-3.2-1.  
 
How Reproducible:  
 
Always. 
 
Steps to Reproduce:  
1. Compile attached source with this command line:  
  
gcc -fexpensive-optimizations -funroll-loops -falign-functions=4 -O3  
-march=athlon -mcpu=athlon -fschedule-insns2 -fno-gcse -c B2DPlugin.c -o xx.o  
  
  
Actual Results:  
 
 Above compiler error is given; gcc quits. 
  
Expected Results:  
 
 file is compiled. 
 
Additional Information:  
	 see attached C file.
Comment 1 Need Real Name 2002-08-24 17:30:34 UTC 
Created attachment 72765 [details]
Preprocessed C source to trigger gcc optimzation bug
Comment 2 Need Real Name 2002-08-24 17:33:50 UTC 
This bug is also triggered with the simpler command line: 
 
gcc -O3 -fno-gcse -c B2DPlugin.c -o xx.o
Comment 3 Vladimir Makarov 2004-10-01 16:23:21 UTC 
I've just checked the current state of redhat branch of gcc-3.2
(gcc-3_2-rhl8-branch).  The bug was gone (I've used two option
combinations mentioned by the customer).  So I am closing the bug.