https://sourceware.org/bugzilla/show_bug.cgi?id=27436
Nelson Chu <nelsonc1225 at sourceware dot org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
CC| |nelsonc1225 at sourceware dot
org
Status|NEW |RESOLVED
--- Comment #3 from Nelson Chu <nelsonc1225 at sourceware dot org> ---
Now I can have the expected results by using mainline binutils,
nelson@LAPTOP-QFSGI1F2:~$ riscv32-unknown-elf-as -march=rv64g tmp.s
nelson@LAPTOP-QFSGI1F2:~$ riscv32-unknown-elf-as -march=rv64gc tmp.s
nelson@LAPTOP-QFSGI1F2:~$ riscv32-unknown-elf-as -march=rv32g tmp.s
tmp.s: Assembler messages:
tmp.s:1: Error: improper shift amount (63)
nelson@LAPTOP-QFSGI1F2:~$ riscv32-unknown-elf-as -march=rv32gc tmp.s
tmp.s: Assembler messages:
tmp.s:1: Error: improper shift amount (63)
I convert the immediate to unsigned long first, and then only check if it is
invalid when the value >= xlen. This is the same as the checking of operand
'>'.
Marked as Resolved and Fixed. If the above behavior has risk, then we can
reopen the PR and use another way to fix it.
Thanks
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