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171
2016 Jul 30
1
Instruction selection bug for vector store with FixedStack
...Match failed at index 241
Continuing at 263
LLVM ERROR: Cannot select: t172: ch = store<ST64[FixedStack6]> t0, t6,
FrameIndex:i64<6>, undef:i64
t6: v8i64,ch = CopyFromReg t0, Register:v8i64 %vreg19
t5: v8i64 = Register %vreg19
t171: i64 = FrameIndex<6>
t73: i64 = undef
In function: foo
I actually have difficulties in understanding in the Selection DAG what the
FixedStack operand means. Also, it is not really clear for me how to handle it in my back end.
Below follows and excerpt of the S...