; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=riscv32 -verify-machineinstrs < %s \
; RUN: | FileCheck %s -check-prefix=RV32I
; RUN: llc -mtriple=riscv64 -verify-machineinstrs < %s \
; RUN: | FileCheck %s -check-prefix=RV64I
; Test for handling of AND with constant. If this constant exceeds simm12 and
; also is a non-empty sequence of ones starting at the least significant bit
; with the remainder zero, we can replace it with SLLI + SLRI
define i32 @and32_0x7ff(i32 %x) {
; RV32I-LABEL: and32_0x7ff:
; RV32I: # %bb.0:
; RV32I-NEXT: andi a0, a0, 2047
; RV32I-NEXT: ret
;
; RV64I-LABEL: and32_0x7ff:
; RV64I: # %bb.0:
; RV64I-NEXT: andi a0, a0, 2047
; RV64I-NEXT: ret
%a = and i32 %x, 2047
ret i32 %a
}
define i32 @and32_0xfff(i32 %x) {
; RV32I-LABEL: and32_0xfff:
; RV32I: # %bb.0:
; RV32I-NEXT: slli a0, a0, 20
; RV32I-NEXT: srli a0, a0, 20
; RV32I-NEXT: ret
;
; RV64I-LABEL: and32_0xfff:
; RV64I: # %bb.0:
; RV64I-NEXT: slli a0, a0, 52
; RV64I-NEXT: srli a0, a0, 52
; RV64I-NEXT: ret
%a = and i32 %x, 4095
ret i32 %a
}
define i64 @and64_0x7ff(i64 %x) {
; RV32I-LABEL: and64_0x7ff:
; RV32I: # %bb.0:
; RV32I-NEXT: andi a0, a0, 2047
; RV32I-NEXT: li a1, 0
; RV32I-NEXT: ret
;
; RV64I-LABEL: and64_0x7ff:
; RV64I: # %bb.0:
; RV64I-NEXT: andi a0, a0, 2047
; RV64I-NEXT: ret
%a = and i64 %x, 2047
ret i64 %a
}
define i64 @and64_0xfff(i64 %x) {
; RV32I-LABEL: and64_0xfff:
; RV32I: # %bb.0:
; RV32I-NEXT: slli a0, a0, 20
; RV32I-NEXT: srli a0, a0, 20
; RV32I-NEXT: li a1, 0
; RV32I-NEXT: ret
;
; RV64I-LABEL: and64_0xfff:
; RV64I: # %bb.0:
; RV64I-NEXT: slli a0, a0, 52
; RV64I-NEXT: srli a0, a0, 52
; RV64I-NEXT: ret
%a = and i64 %x, 4095
ret i64 %a
}
; Test for handling of AND with constant. If this constant exceeds simm32 and
; also is a non-empty sequence of ones starting at the most significant bit
; with the remainder zero, we can replace it with SRLI + SLLI.
define i32 @and32_0x7ffff000(i32 %x) {
; RV32I-LABEL: and32_0x7ffff000:
; RV32I: # %bb.0:
; RV32I-NEXT: lui a1, 524287
; RV32I-NEXT: and a0, a0, a1
; RV32I-NEXT: ret
;
; RV64I-LABEL: and32_0x7ffff000:
; RV64I: # %bb.0:
; RV64I-NEXT: lui a1, 524287
; RV64I-NEXT: and a0, a0, a1
; RV64I-NEXT: ret
%a = and i32 %x, 2147479552
ret i32 %a
}
define i32 @and32_0xfffff000(i32 %x) {
; RV32I-LABEL: and32_0xfffff000:
; RV32I: # %bb.0:
; RV32I-NEXT: lui a1, 1048575
; RV32I-NEXT: and a0, a0, a1
; RV32I-NEXT: ret
;
; RV64I-LABEL: and32_0xfffff000:
; RV64I: # %bb.0:
; RV64I-NEXT: lui a1, 1048575
; RV64I-NEXT: and a0, a0, a1
; RV64I-NEXT: ret
%a = and i32 %x, -4096
ret i32 %a
}
define i32 @and32_0xfffffa00(i32 %x) {
; RV32I-LABEL: and32_0xfffffa00:
; RV32I: # %bb.0:
; RV32I-NEXT: andi a0, a0, -1536
; RV32I-NEXT: ret
;
; RV64I-LABEL: and32_0xfffffa00:
; RV64I: # %bb.0:
; RV64I-NEXT: andi a0, a0, -1536
; RV64I-NEXT: ret
%a = and i32 %x, -1536
ret i32 %a
}
define i64 @and64_0x7ffffffffffff000(i64 %x) {
; RV32I-LABEL: and64_0x7ffffffffffff000:
; RV32I: # %bb.0:
; RV32I-NEXT: lui a2, 1048575
; RV32I-NEXT: and a0, a0, a2
; RV32I-NEXT: slli a1, a1, 1
; RV32I-NEXT: srli a1, a1, 1
; RV32I-NEXT: ret
;
; RV64I-LABEL: and64_0x7ffffffffffff000:
; RV64I: # %bb.0:
; RV64I-NEXT: lui a1, 1048574
; RV64I-NEXT: srli a1, a1, 1
; RV64I-NEXT: and a0, a0, a1
; RV64I-NEXT: ret
%a = and i64 %x, 9223372036854771712
ret i64 %a
}
define i64 @and64_0xfffffffffffff000(i64 %x) {
; RV32I-LABEL: and64_0xfffffffffffff000:
; RV32I: # %bb.0:
; RV32I-NEXT: lui a2, 1048575
; RV32I-NEXT: and a0, a0, a2
; RV32I-NEXT: ret
;
; RV64I-LABEL: and64_0xfffffffffffff000:
; RV64I: # %bb.0:
; RV64I-NEXT: lui a1, 1048575
; RV64I-NEXT: and a0, a0, a1
; RV64I-NEXT: ret
%a = and i64 %x, -4096
ret i64 %a
}
define i64 @and64_0xfffffffffffffa00(i64 %x) {
; RV32I-LABEL: and64_0xfffffffffffffa00:
; RV32I: # %bb.0:
; RV32I-NEXT: andi a0, a0, -1536
; RV32I-NEXT: ret
;
; RV64I-LABEL: and64_0xfffffffffffffa00:
; RV64I: # %bb.0:
; RV64I-NEXT: andi a0, a0, -1536
; RV64I-NEXT: ret
%a = and i64 %x, -1536
ret i64 %a
}
define i64 @and64_0xffffffff00000000(i64 %x) {
; RV32I-LABEL: and64_0xffffffff00000000:
; RV32I: # %bb.0:
; RV32I-NEXT: li a0, 0
; RV32I-NEXT: ret
;
; RV64I-LABEL: and64_0xffffffff00000000:
; RV64I: # %bb.0:
; RV64I-NEXT: srli a0, a0, 32
; RV64I-NEXT: slli a0, a0, 32
; RV64I-NEXT: ret
%a = and i64 %x, -4294967296
ret i64 %a
}
define i64 @and64_0x7fffffff00000000(i64 %x) {
; RV32I-LABEL: and64_0x7fffffff00000000:
; RV32I: # %bb.0:
; RV32I-NEXT: slli a1, a1, 1
; RV32I-NEXT: srli a1, a1, 1
; RV32I-NEXT: li a0, 0
; RV32I-NEXT: ret
;
; RV64I-LABEL: and64_0x7fffffff00000000:
; RV64I: # %bb.0:
; RV64I-NEXT: lui a1, 524288
; RV64I-NEXT: addi a1, a1, -1
; RV64I-NEXT: slli a1, a1, 32
; RV64I-NEXT: and a0, a0, a1
; RV64I-NEXT: ret
%a = and i64 %x, 9223372032559808512
ret i64 %a
}
define i64 @and64_0xffffffff80000000(i64 %x) {
; RV32I-LABEL: and64_0xffffffff80000000:
; RV32I: # %bb.0:
; RV32I-NEXT: lui a2, 524288
; RV32I-NEXT: and a0, a0, a2
; RV32I-NEXT: ret
;
; RV64I-LABEL: and64_0xffffffff80000000:
; RV64I: # %bb.0:
; RV64I-NEXT: lui a1, 524288
; RV64I-NEXT: and a0, a0, a1
; RV64I-NEXT: ret
%a = and i64 %x, -2147483648
ret i64 %a
}
define i64 @and64_0x00000000fffffff8(i64 %x) {
; RV32I-LABEL: and64_0x00000000fffffff8:
; RV32I: # %bb.0:
; RV32I-NEXT: andi a0, a0, -8
; RV32I-NEXT: li a1, 0
; RV32I-NEXT: ret
;
; RV64I-LABEL: and64_0x00000000fffffff8:
; RV64I: # %bb.0:
; RV64I-NEXT: srliw a0, a0, 3
; RV64I-NEXT: slli a0, a0, 3
; RV64I-NEXT: ret
%a = and i64 %x, 4294967288
ret i64 %a
}
Codebase Browser
llvm