https://bugs.llvm.org/show_bug.cgi?id=40208
Bug ID: 40208
Summary: failed cross compiling ffmpeg's av_sscanf
(libavutil/avstring.h)
Product: clang
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: C++
Assignee: unassignedclangb...@nondot.org
Reporter: chcunning...@google.com
CC: blitzrak...@gmail.com, dgre...@apple.com,
erik.pilking...@gmail.com, llvm-bugs@lists.llvm.org,
richard-l...@metafoo.co.uk
Created attachment 21286
--> https://bugs.llvm.org/attachment.cgi?id=21286&action=edit
preprocessed source
Encountered while rolling latest ffmpeg into chromium.
Cross compile info:
Host OS : linux
Target OS : android
Host arch : x64
Target arch : x64
Error output:
fatal error: error in backend: Cannot select: t81: ch = store<(store 8 into
%stack.6), trunc to f64> t0, t38, FrameIndex:i64<6>, undef:i64
t38: f128,ch,glue = CopyFromReg t36, Register:f128 $xmm0, t36:1
t37: f128 = Register $xmm0
t36: ch,glue = callseq_end t35, TargetConstant:i64<0>,
TargetConstant:i64<0>, t35:1
t7: i64 = TargetConstant<0>
t7: i64 = TargetConstant<0>
t35: ch,glue = X86ISD::CALL t33, TargetExternalSymbol:i64'__floatsitf'
[TF=6], Register:i32 $edi, RegisterMask:Untyped, t33:1
t34: i64 = TargetExternalSymbol'__floatsitf' [TF=6]
t11: i32 = Register $edi
t14: Untyped = RegisterMask
t33: ch,glue = CopyToReg t32, Register:i32 $edi, t22
t11: i32 = Register $edi
t22: i32 = AssertSext t20, ValueType:ch:i4
t20: i32,ch = CopyFromReg t0, Register:i32 %260
t19: i32 = Register %260
t80: i64 = FrameIndex<6>
t53: i64 = undef
In function: av_sscanf
clang: error: clang frontend command failed with exit code 70 (use -v to see
invocation)
clang version 8.0.0 (trunk 349417)
Target: x86_64-unknown-linux-android
Thread model: posix
InstalledDir: /ssd/blink3/src/third_party/llvm-build/Release+Asserts/bin
clang: note: diagnostic msg: PLEASE submit a bug report to
https://bugs.llvm.org/ and include the crash backtrace, preprocessed source,
and associated run script.
clang: note: diagnostic msg:
********************
PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang: note: diagnostic msg: /tmp/avsscanf-6714ad.c
clang: note: diagnostic msg: /tmp/avsscanf-6714ad.sh
clang: note: diagnostic msg:
********************
/ssd/blink3/src/third_party/ffmpeg/ffbuild/common.mak:60: recipe for target
'libavutil/avsscanf.o' failed
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