https://bugs.llvm.org/show_bug.cgi?id=35402
Bug ID: 35402
Summary: error in backend: Cannot select: 0x55ce75ede940: ch =
PPCISD::STBRX<ST6[%177](align=1)>
Product: clang
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: LLVM Codegen
Assignee: unassignedclangb...@nondot.org
Reporter: j...@jms.id.au
CC: llvm-bugs@lists.llvm.org
Created attachment 19463
--> https://bugs.llvm.org/attachment.cgi?id=19463&action=edit
clang command line
I am building the Linux kernel for PowerPC, cross compiling from x86.
clang version 5.0.0-4 (tags/RELEASE_500/final)
The bug reproduces with clang version 6.0.0 (trunk 318937).
CC [M] drivers/net/ethernet/mellanox/mlx4/resource_tracker.o
fatal error: error in backend: Cannot select: 0x55ce75ede940: ch =
PPCISD::STBRX<ST6[%177](align=1)>
0x55ce75f74b28, 0x55ce75edf090, 0x55ce75ed94c8, ValueType:ch:i48
0x55ce75edf090: i32 = truncate 0x55ce75e9b398
0x55ce75e9b398: i64 = srl 0x55ce75ed8ca8, Constant:i32<16>
0x55ce75ed8ca8: i64,ch = CopyFromReg 0x55ce744f44e8, Register:i64 %vreg26
0x55ce75f9bd08: i64 = Register %vreg26
0x55ce75f74238: i32 = Constant<16>
0x55ce75ed94c8: i64 = add 0x55ce75edeb48, Constant:i64<10>
0x55ce75edeb48: i64,ch = CopyFromReg 0x55ce744f44e8, Register:i64 %vreg20
0x55ce75f74f38: i64 = Register %vreg20
0x55ce75e9b330: i64 = Constant<10>
In function: mlx4_QP_FLOW_STEERING_ATTACH_wrapper
clang: error: clang frontend command failed with exit code 70 (use -v to see
invocation)
clang version 5.0.0-4 (tags/RELEASE_500/final)
Target: powerpc64le--linux-gnu
Thread model: posix
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