tree b10a7f27b7095cffe33af8166e19ac3ed762e3b0
parent 8f14f33f96d35416786d65664ca731ae75d1c733
author Joel Sing <joel@sing.id.au> 1579711111 +1100
committer Joel Sing <joel@sing.id.au> 1580179168 +0000

cmd/internal/obj/riscv: use signed immediates for U-instructions

On RISCV64, the U-instructions (AUIPC and LUI) take 20 bits, append 12 bits
of zeros and sign extend to 64-bits. As such, the 20 bit immediate value is
signed not unsigned.

Updates #27532

Change-Id: I725215a1dc500106dbfdc0a4425f3c0b2a6f411e
Reviewed-on: https://go-review.googlesource.com/c/go/+/216257
Reviewed-by: Cherry Zhang <cherryyz@google.com>