https://bugs.llvm.org/show_bug.cgi?id=49805
Bug ID: 49805
Summary: error in backend: Error while trying to spill R1 from
class GPR:
Product: clang
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: LLVM Codegen
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected],
[email protected]
Created attachment 24713
--> https://bugs.llvm.org/attachment.cgi?id=24713&action=edit
test case
in 12.0.0-RC4 I am seeing a segfault in clang while compiling aom for
armv7/rpi4 target
fatal error: error in backend: Error while trying to spill R1 from class GPR:
Cannot scavenge register without an emergency spill slot!
Attached is the testcase and shell script to reproduce it.
This does not happen in 11.x so its a regression
here is more info compiler emits
1. <eof> parser at end of file
2. Code generation
3. Running pass 'Function Pass Manager' on module
'TOPDIR/build/tmp/work/cortexa7t2hf-neon-vfpv4-yoe-linux-gnueabi/aom/3.0.0-r0/git/av1/encoder/arm/neon/av1_fwd_txfm2d_neon.c'.
4. Running pass 'Prologue/Epilogue Insertion & Frame Finalization' on
function '@fdct8x16_neon'
Stack dump without symbol names (ensure you have llvm-symbolizer in your PATH
or set the environment var `LLVM_SYMBOLIZER_PATH` to point to it):
clang-12: error: clang frontend command failed with exit code 70 (use -v to see
invocation)
clang version 12.0.0 (https://github.com/llvm/llvm-project
31001be371e8f2c74470e727e54503fb2aabec8b)
Target: arm-yoe-linux-gnueabi
--
You are receiving this mail because:
You are on the CC list for the bug._______________________________________________
llvm-bugs mailing list
[email protected]
https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
