Depends on D151396.
This is the 3rd patch of the patch-set. For the cover letter of the
patch-set, please checkout D151395.
This commit consists of change in both clang front-end and RISC-
In the front-end, this commit adds an additional operand to the C
intrinsics of vaadd, vaaddu, vasub, and vasubu, that models
the control of the rounding mode.
In the back-end, using vaadd as an example, this commit replaces the
existing int.riscv.vaadd.* with int.riscv.vaadd.rm.* that was
introduced in the previous patch, with the extra operand that models
the control of the rounding mode (vxrm) for RVV fixed-point
Note: The first 3 commit of the patch-set shows the intent to model the
rounding mode for fixed-point intrinsics by applying change to
vaadd, vaaddu, vasub, and vasubu. The proceeding patch will
apply the change to the rest of the other fixed-point instructions.