http://llvm.org/bugs/show_bug.cgi?id=21944
Bug ID: 21944
Summary: clang segmentation fault slp-vectorize
Product: clang
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: C++
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected]
Classification: Unclassified
Created attachment 13559
--> http://llvm.org/bugs/attachment.cgi?id=13559&action=edit
script and preprocessed source input to reproduce the bug
When compiling Android Open Source for aosp_fugu-userdebug target, clang has a
segmentation fault:
1. <eof> parser at end of file
2. Code generation
3. Running pass 'Function Pass Manager' on module
'system/core/libmincrypt/p256_ec.c'.
4. Running pass 'X86 DAG->DAG Instruction Selection' on function
'@felem_square'
clang: error: unable to execute command: Segmentation fault (core dumped)
clang: error: clang frontend command failed due to signal (use -v to see
invocation)
clang version 3.6
Target: i686--linux-android
Thread model: posix
Attached p256.zip file contains the reproducible data p256_ec-872742.{c,sh}
I can avoid the segmentation fault by turning off slp-vectorize, compiled with
-fno-slp-vectorize.
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