Fix cv.shuffle.b.sci immediate operand
Created by: MaryBennett
Issue #68
The built-in for cv.shuffle.b.sci takes an 8-bit immediate operand. The top two bits decides which cv.shufflei* instruction is used. The other six bits are printed.
Files Changed:
- config/riscv/constraints.md: Added new constraints to check the top two bits.
- config/riscv/corev.md: Likewise.
- config/riscv/riscv.cc: Added new operand type for printing the bottom six bits.
- testsuite/gcc.target/riscv/cv-simd-shufflei0-sci-b-compile-1.c: Updated test.
- testsuite/gcc.target/riscv/cv-simd-shufflei1-sci-b-compile-1.c: Likewise.
- testsuite/gcc.target/riscv/cv-simd-shufflei2-sci-b-compile-1.c: Likewise.
- testsuite/gcc.target/riscv/cv-simd-shufflei3-sci-b-compile-1.c: Likewise.
- testsuite/gcc.target/riscv/cv-xcvsimd-march-compile-1.c: Likewise.