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[RISCV] Add alias for HFENCE.VVMA

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Signed-off-by: Eric Tang <eric.tang@starfivetech.com>

Differential Revision: https://reviews.llvm.org/D120878
This commit is contained in:
Eric Tang 2022-03-03 17:17:23 +08:00
parent e8fadafe77
commit 336c92d5e8
2 changed files with 9 additions and 0 deletions
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3
llvm/lib/Target/RISCV/RISCVInstrInfo.td
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@ -901,6 +901,9 @@ def : InstAlias<"sfence.vma $rs", (SFENCE_VMA GPR:$rs, X0)>;
def : InstAlias<"hfence.gvma", (HFENCE_GVMA X0, X0)>;
def : InstAlias<"hfence.gvma $rs", (HFENCE_GVMA GPR:$rs, X0)>;
def : InstAlias<"hfence.vvma", (HFENCE_VVMA X0, X0)>;
def : InstAlias<"hfence.vvma $rs", (HFENCE_VVMA GPR:$rs, X0)>;
let EmitPriority = 0 in {
def : InstAlias<"lb $rd, (${rs1})",
(LB GPR:$rd, GPR:$rs1, 0)>;

6
llvm/test/MC/RISCV/rvi-aliases-valid.s
View file

@ -262,6 +262,12 @@ hfence.gvma
# CHECK-S-OBJ-NOALIAS: hfence.gvma a0, zero
# CHECK-S-OBJ: hfence.gvma a0
hfence.gvma a0
# CHECK-S-OBJ-NOALIAS: hfence.vvma zero, zero
# CHECK-S-OBJ: hfence.vvma
hfence.vvma
# CHECK-S-OBJ-NOALIAS: hfence.vvma a0, zero
# CHECK-S-OBJ: hfence.vvma a0
hfence.vvma a0
# The following aliases are accepted as input but the canonical form
# of the instruction will always be printed.