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llvm-mirror/test/CodeGen/RISCV/rv32zbt.ll
Craig Topper 8ec32a2ae0 [RISCV] Teach DAG combine to fold (and (select_cc lhs, rhs, cc, -1, c), x) -> (select_cc lhs, rhs, cc, x, (and, x, c)) 
Similar for or/xor with 0 in place of -1.

This is the canonical form produced by InstCombine for something like `c ? x & y : x;` Since we have to use control flow to expand select we'll usually end up with a mv in basic block. By folding this we may be able to pull the and/or/xor into the block instead and avoid a mv instruction.

The code here is based on code from ARM that uses this to create predicated instructions. I'm doing it on SELECT_CC so it happens late, but we could do it on select earlier which is what ARM does. I'm not sure if we lose any combine opportunities if we do it earlier.

I left out add and sub because this can separate sext.w from the add/sub. It also made a conditional i64 addition/subtraction on RV32 worse. I guess both of those would be fixed by doing this earlier on select.

The select-binop-identity.ll test has not been commited yet, but I made the diff show the changes to it.

Reviewed By: luismarques

Differential Revision: https://reviews.llvm.org/D101485
2021-04-29 09:43:51 -07:00

825 lines
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; 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=riscv32 -mattr=+experimental-b -verify-machineinstrs < %s \
; RUN: | FileCheck %s -check-prefix=RV32IB
; RUN: llc -mtriple=riscv32 -mattr=+experimental-zbt -verify-machineinstrs < %s \
; RUN: | FileCheck %s -check-prefix=RV32IBT
define i32 @cmix_i32(i32 %a, i32 %b, i32 %c) nounwind {
; RV32I-LABEL: cmix_i32:
; RV32I: # %bb.0:
; RV32I-NEXT: and a0, a1, a0
; RV32I-NEXT: not a1, a1
; RV32I-NEXT: and a1, a1, a2
; RV32I-NEXT: or a0, a1, a0
; RV32I-NEXT: ret
;
; RV32IB-LABEL: cmix_i32:
; RV32IB: # %bb.0:
; RV32IB-NEXT: cmix a0, a1, a0, a2
; RV32IB-NEXT: ret
;
; RV32IBT-LABEL: cmix_i32:
; RV32IBT: # %bb.0:
; RV32IBT-NEXT: cmix a0, a1, a0, a2
; RV32IBT-NEXT: ret
%and = and i32 %b, %a
%neg = xor i32 %b, -1
%and1 = and i32 %neg, %c
%or = or i32 %and1, %and
ret i32 %or
}
define i64 @cmix_i64(i64 %a, i64 %b, i64 %c) nounwind {
; RV32I-LABEL: cmix_i64:
; RV32I: # %bb.0:
; RV32I-NEXT: and a1, a3, a1
; RV32I-NEXT: and a0, a2, a0
; RV32I-NEXT: not a2, a2
; RV32I-NEXT: not a3, a3
; RV32I-NEXT: and a3, a3, a5
; RV32I-NEXT: and a2, a2, a4
; RV32I-NEXT: or a0, a2, a0
; RV32I-NEXT: or a1, a3, a1
; RV32I-NEXT: ret
;
; RV32IB-LABEL: cmix_i64:
; RV32IB: # %bb.0:
; RV32IB-NEXT: cmix a0, a2, a0, a4
; RV32IB-NEXT: cmix a1, a3, a1, a5
; RV32IB-NEXT: ret
;
; RV32IBT-LABEL: cmix_i64:
; RV32IBT: # %bb.0:
; RV32IBT-NEXT: cmix a0, a2, a0, a4
; RV32IBT-NEXT: cmix a1, a3, a1, a5
; RV32IBT-NEXT: ret
%and = and i64 %b, %a
%neg = xor i64 %b, -1
%and1 = and i64 %neg, %c
%or = or i64 %and1, %and
ret i64 %or
}
define i32 @cmov_i32(i32 %a, i32 %b, i32 %c) nounwind {
; RV32I-LABEL: cmov_i32:
; RV32I: # %bb.0:
; RV32I-NEXT: beqz a1, .LBB2_2
; RV32I-NEXT: # %bb.1:
; RV32I-NEXT: mv a2, a0
; RV32I-NEXT: .LBB2_2:
; RV32I-NEXT: mv a0, a2
; RV32I-NEXT: ret
;
; RV32IB-LABEL: cmov_i32:
; RV32IB: # %bb.0:
; RV32IB-NEXT: cmov a0, a1, a0, a2
; RV32IB-NEXT: ret
;
; RV32IBT-LABEL: cmov_i32:
; RV32IBT: # %bb.0:
; RV32IBT-NEXT: cmov a0, a1, a0, a2
; RV32IBT-NEXT: ret
%tobool.not = icmp eq i32 %b, 0
%cond = select i1 %tobool.not, i32 %c, i32 %a
ret i32 %cond
}
define i32 @cmov_sle_i32(i32 %a, i32 %b, i32 %c, i32 %d) nounwind {
; RV32I-LABEL: cmov_sle_i32:
; RV32I: # %bb.0:
; RV32I-NEXT: bge a2, a1, .LBB3_2
; RV32I-NEXT: # %bb.1:
; RV32I-NEXT: mv a0, a3
; RV32I-NEXT: .LBB3_2:
; RV32I-NEXT: ret
;
; RV32IB-LABEL: cmov_sle_i32:
; RV32IB: # %bb.0:
; RV32IB-NEXT: slt a1, a2, a1
; RV32IB-NEXT: cmov a0, a1, a3, a0
; RV32IB-NEXT: ret
;
; RV32IBT-LABEL: cmov_sle_i32:
; RV32IBT: # %bb.0:
; RV32IBT-NEXT: slt a1, a2, a1
; RV32IBT-NEXT: cmov a0, a1, a3, a0
; RV32IBT-NEXT: ret
%tobool = icmp sle i32 %b, %c
%cond = select i1 %tobool, i32 %a, i32 %d
ret i32 %cond
}
define i32 @cmov_sge_i32(i32 %a, i32 %b, i32 %c, i32 %d) nounwind {
; RV32I-LABEL: cmov_sge_i32:
; RV32I: # %bb.0:
; RV32I-NEXT: bge a1, a2, .LBB4_2
; RV32I-NEXT: # %bb.1:
; RV32I-NEXT: mv a0, a3
; RV32I-NEXT: .LBB4_2:
; RV32I-NEXT: ret
;
; RV32IB-LABEL: cmov_sge_i32:
; RV32IB: # %bb.0:
; RV32IB-NEXT: slt a1, a1, a2
; RV32IB-NEXT: cmov a0, a1, a3, a0
; RV32IB-NEXT: ret
;
; RV32IBT-LABEL: cmov_sge_i32:
; RV32IBT: # %bb.0:
; RV32IBT-NEXT: slt a1, a1, a2
; RV32IBT-NEXT: cmov a0, a1, a3, a0
; RV32IBT-NEXT: ret
%tobool = icmp sge i32 %b, %c
%cond = select i1 %tobool, i32 %a, i32 %d
ret i32 %cond
}
define i32 @cmov_ule_i32(i32 %a, i32 %b, i32 %c, i32 %d) nounwind {
; RV32I-LABEL: cmov_ule_i32:
; RV32I: # %bb.0:
; RV32I-NEXT: bgeu a2, a1, .LBB5_2
; RV32I-NEXT: # %bb.1:
; RV32I-NEXT: mv a0, a3
; RV32I-NEXT: .LBB5_2:
; RV32I-NEXT: ret
;
; RV32IB-LABEL: cmov_ule_i32:
; RV32IB: # %bb.0:
; RV32IB-NEXT: sltu a1, a2, a1
; RV32IB-NEXT: cmov a0, a1, a3, a0
; RV32IB-NEXT: ret
;
; RV32IBT-LABEL: cmov_ule_i32:
; RV32IBT: # %bb.0:
; RV32IBT-NEXT: sltu a1, a2, a1
; RV32IBT-NEXT: cmov a0, a1, a3, a0
; RV32IBT-NEXT: ret
%tobool = icmp ule i32 %b, %c
%cond = select i1 %tobool, i32 %a, i32 %d
ret i32 %cond
}
define i32 @cmov_uge_i32(i32 %a, i32 %b, i32 %c, i32 %d) nounwind {
; RV32I-LABEL: cmov_uge_i32:
; RV32I: # %bb.0:
; RV32I-NEXT: bgeu a1, a2, .LBB6_2
; RV32I-NEXT: # %bb.1:
; RV32I-NEXT: mv a0, a3
; RV32I-NEXT: .LBB6_2:
; RV32I-NEXT: ret
;
; RV32IB-LABEL: cmov_uge_i32:
; RV32IB: # %bb.0:
; RV32IB-NEXT: sltu a1, a1, a2
; RV32IB-NEXT: cmov a0, a1, a3, a0
; RV32IB-NEXT: ret
;
; RV32IBT-LABEL: cmov_uge_i32:
; RV32IBT: # %bb.0:
; RV32IBT-NEXT: sltu a1, a1, a2
; RV32IBT-NEXT: cmov a0, a1, a3, a0
; RV32IBT-NEXT: ret
%tobool = icmp uge i32 %b, %c
%cond = select i1 %tobool, i32 %a, i32 %d
ret i32 %cond
}
define i64 @cmov_i64(i64 %a, i64 %b, i64 %c) nounwind {
; RV32I-LABEL: cmov_i64:
; RV32I: # %bb.0:
; RV32I-NEXT: or a2, a2, a3
; RV32I-NEXT: beqz a2, .LBB7_2
; RV32I-NEXT: # %bb.1:
; RV32I-NEXT: mv a4, a0
; RV32I-NEXT: mv a5, a1
; RV32I-NEXT: .LBB7_2:
; RV32I-NEXT: mv a0, a4
; RV32I-NEXT: mv a1, a5
; RV32I-NEXT: ret
;
; RV32IB-LABEL: cmov_i64:
; RV32IB: # %bb.0:
; RV32IB-NEXT: or a2, a2, a3
; RV32IB-NEXT: cmov a0, a2, a0, a4
; RV32IB-NEXT: cmov a1, a2, a1, a5
; RV32IB-NEXT: ret
;
; RV32IBT-LABEL: cmov_i64:
; RV32IBT: # %bb.0:
; RV32IBT-NEXT: or a2, a2, a3
; RV32IBT-NEXT: cmov a0, a2, a0, a4
; RV32IBT-NEXT: cmov a1, a2, a1, a5
; RV32IBT-NEXT: ret
%tobool.not = icmp eq i64 %b, 0
%cond = select i1 %tobool.not, i64 %c, i64 %a
ret i64 %cond
}
define i64 @cmov_sle_i64(i64 %a, i64 %b, i64 %c, i64 %d) nounwind {
; RV32I-LABEL: cmov_sle_i64:
; RV32I: # %bb.0:
; RV32I-NEXT: beq a3, a5, .LBB8_2
; RV32I-NEXT: # %bb.1:
; RV32I-NEXT: slt a2, a5, a3
; RV32I-NEXT: xori a2, a2, 1
; RV32I-NEXT: beqz a2, .LBB8_3
; RV32I-NEXT: j .LBB8_4
; RV32I-NEXT: .LBB8_2:
; RV32I-NEXT: sltu a2, a4, a2
; RV32I-NEXT: xori a2, a2, 1
; RV32I-NEXT: bnez a2, .LBB8_4
; RV32I-NEXT: .LBB8_3:
; RV32I-NEXT: mv a0, a6
; RV32I-NEXT: mv a1, a7
; RV32I-NEXT: .LBB8_4:
; RV32I-NEXT: ret
;
; RV32IB-LABEL: cmov_sle_i64:
; RV32IB: # %bb.0:
; RV32IB-NEXT: xor t0, a3, a5
; RV32IB-NEXT: sltu a2, a4, a2
; RV32IB-NEXT: xori a2, a2, 1
; RV32IB-NEXT: slt a3, a5, a3
; RV32IB-NEXT: xori a3, a3, 1
; RV32IB-NEXT: cmov a2, t0, a3, a2
; RV32IB-NEXT: cmov a0, a2, a0, a6
; RV32IB-NEXT: cmov a1, a2, a1, a7
; RV32IB-NEXT: ret
;
; RV32IBT-LABEL: cmov_sle_i64:
; RV32IBT: # %bb.0:
; RV32IBT-NEXT: xor t0, a3, a5
; RV32IBT-NEXT: sltu a2, a4, a2
; RV32IBT-NEXT: xori a2, a2, 1
; RV32IBT-NEXT: slt a3, a5, a3
; RV32IBT-NEXT: xori a3, a3, 1
; RV32IBT-NEXT: cmov a2, t0, a3, a2
; RV32IBT-NEXT: cmov a0, a2, a0, a6
; RV32IBT-NEXT: cmov a1, a2, a1, a7
; RV32IBT-NEXT: ret
%tobool = icmp sle i64 %b, %c
%cond = select i1 %tobool, i64 %a, i64 %d
ret i64 %cond
}
define i64 @cmov_sge_i64(i64 %a, i64 %b, i64 %c, i64 %d) nounwind {
; RV32I-LABEL: cmov_sge_i64:
; RV32I: # %bb.0:
; RV32I-NEXT: beq a3, a5, .LBB9_2
; RV32I-NEXT: # %bb.1:
; RV32I-NEXT: slt a2, a3, a5
; RV32I-NEXT: xori a2, a2, 1
; RV32I-NEXT: beqz a2, .LBB9_3
; RV32I-NEXT: j .LBB9_4
; RV32I-NEXT: .LBB9_2:
; RV32I-NEXT: sltu a2, a2, a4
; RV32I-NEXT: xori a2, a2, 1
; RV32I-NEXT: bnez a2, .LBB9_4
; RV32I-NEXT: .LBB9_3:
; RV32I-NEXT: mv a0, a6
; RV32I-NEXT: mv a1, a7
; RV32I-NEXT: .LBB9_4:
; RV32I-NEXT: ret
;
; RV32IB-LABEL: cmov_sge_i64:
; RV32IB: # %bb.0:
; RV32IB-NEXT: xor t0, a3, a5
; RV32IB-NEXT: sltu a2, a2, a4
; RV32IB-NEXT: xori a2, a2, 1
; RV32IB-NEXT: slt a3, a3, a5
; RV32IB-NEXT: xori a3, a3, 1
; RV32IB-NEXT: cmov a2, t0, a3, a2
; RV32IB-NEXT: cmov a0, a2, a0, a6
; RV32IB-NEXT: cmov a1, a2, a1, a7
; RV32IB-NEXT: ret
;
; RV32IBT-LABEL: cmov_sge_i64:
; RV32IBT: # %bb.0:
; RV32IBT-NEXT: xor t0, a3, a5
; RV32IBT-NEXT: sltu a2, a2, a4
; RV32IBT-NEXT: xori a2, a2, 1
; RV32IBT-NEXT: slt a3, a3, a5
; RV32IBT-NEXT: xori a3, a3, 1
; RV32IBT-NEXT: cmov a2, t0, a3, a2
; RV32IBT-NEXT: cmov a0, a2, a0, a6
; RV32IBT-NEXT: cmov a1, a2, a1, a7
; RV32IBT-NEXT: ret
%tobool = icmp sge i64 %b, %c
%cond = select i1 %tobool, i64 %a, i64 %d
ret i64 %cond
}
define i64 @cmov_ule_i64(i64 %a, i64 %b, i64 %c, i64 %d) nounwind {
; RV32I-LABEL: cmov_ule_i64:
; RV32I: # %bb.0:
; RV32I-NEXT: beq a3, a5, .LBB10_2
; RV32I-NEXT: # %bb.1:
; RV32I-NEXT: sltu a2, a5, a3
; RV32I-NEXT: xori a2, a2, 1
; RV32I-NEXT: beqz a2, .LBB10_3
; RV32I-NEXT: j .LBB10_4
; RV32I-NEXT: .LBB10_2:
; RV32I-NEXT: sltu a2, a4, a2
; RV32I-NEXT: xori a2, a2, 1
; RV32I-NEXT: bnez a2, .LBB10_4
; RV32I-NEXT: .LBB10_3:
; RV32I-NEXT: mv a0, a6
; RV32I-NEXT: mv a1, a7
; RV32I-NEXT: .LBB10_4:
; RV32I-NEXT: ret
;
; RV32IB-LABEL: cmov_ule_i64:
; RV32IB: # %bb.0:
; RV32IB-NEXT: xor t0, a3, a5
; RV32IB-NEXT: sltu a2, a4, a2
; RV32IB-NEXT: xori a2, a2, 1
; RV32IB-NEXT: sltu a3, a5, a3
; RV32IB-NEXT: xori a3, a3, 1
; RV32IB-NEXT: cmov a2, t0, a3, a2
; RV32IB-NEXT: cmov a0, a2, a0, a6
; RV32IB-NEXT: cmov a1, a2, a1, a7
; RV32IB-NEXT: ret
;
; RV32IBT-LABEL: cmov_ule_i64:
; RV32IBT: # %bb.0:
; RV32IBT-NEXT: xor t0, a3, a5
; RV32IBT-NEXT: sltu a2, a4, a2
; RV32IBT-NEXT: xori a2, a2, 1
; RV32IBT-NEXT: sltu a3, a5, a3
; RV32IBT-NEXT: xori a3, a3, 1
; RV32IBT-NEXT: cmov a2, t0, a3, a2
; RV32IBT-NEXT: cmov a0, a2, a0, a6
; RV32IBT-NEXT: cmov a1, a2, a1, a7
; RV32IBT-NEXT: ret
%tobool = icmp ule i64 %b, %c
%cond = select i1 %tobool, i64 %a, i64 %d
ret i64 %cond
}
define i64 @cmov_uge_i64(i64 %a, i64 %b, i64 %c, i64 %d) nounwind {
; RV32I-LABEL: cmov_uge_i64:
; RV32I: # %bb.0:
; RV32I-NEXT: beq a3, a5, .LBB11_2
; RV32I-NEXT: # %bb.1:
; RV32I-NEXT: sltu a2, a3, a5
; RV32I-NEXT: xori a2, a2, 1
; RV32I-NEXT: beqz a2, .LBB11_3
; RV32I-NEXT: j .LBB11_4
; RV32I-NEXT: .LBB11_2:
; RV32I-NEXT: sltu a2, a2, a4
; RV32I-NEXT: xori a2, a2, 1
; RV32I-NEXT: bnez a2, .LBB11_4
; RV32I-NEXT: .LBB11_3:
; RV32I-NEXT: mv a0, a6
; RV32I-NEXT: mv a1, a7
; RV32I-NEXT: .LBB11_4:
; RV32I-NEXT: ret
;
; RV32IB-LABEL: cmov_uge_i64:
; RV32IB: # %bb.0:
; RV32IB-NEXT: xor t0, a3, a5
; RV32IB-NEXT: sltu a2, a2, a4
; RV32IB-NEXT: xori a2, a2, 1
; RV32IB-NEXT: sltu a3, a3, a5
; RV32IB-NEXT: xori a3, a3, 1
; RV32IB-NEXT: cmov a2, t0, a3, a2
; RV32IB-NEXT: cmov a0, a2, a0, a6
; RV32IB-NEXT: cmov a1, a2, a1, a7
; RV32IB-NEXT: ret
;
; RV32IBT-LABEL: cmov_uge_i64:
; RV32IBT: # %bb.0:
; RV32IBT-NEXT: xor t0, a3, a5
; RV32IBT-NEXT: sltu a2, a2, a4
; RV32IBT-NEXT: xori a2, a2, 1
; RV32IBT-NEXT: sltu a3, a3, a5
; RV32IBT-NEXT: xori a3, a3, 1
; RV32IBT-NEXT: cmov a2, t0, a3, a2
; RV32IBT-NEXT: cmov a0, a2, a0, a6
; RV32IBT-NEXT: cmov a1, a2, a1, a7
; RV32IBT-NEXT: ret
%tobool = icmp uge i64 %b, %c
%cond = select i1 %tobool, i64 %a, i64 %d
ret i64 %cond
}
declare i32 @llvm.fshl.i32(i32, i32, i32)
define i32 @fshl_i32(i32 %a, i32 %b, i32 %c) nounwind {
; RV32I-LABEL: fshl_i32:
; RV32I: # %bb.0:
; RV32I-NEXT: sll a0, a0, a2
; RV32I-NEXT: not a2, a2
; RV32I-NEXT: srli a1, a1, 1
; RV32I-NEXT: srl a1, a1, a2
; RV32I-NEXT: or a0, a0, a1
; RV32I-NEXT: ret
;
; RV32IB-LABEL: fshl_i32:
; RV32IB: # %bb.0:
; RV32IB-NEXT: andi a2, a2, 31
; RV32IB-NEXT: fsl a0, a0, a1, a2
; RV32IB-NEXT: ret
;
; RV32IBT-LABEL: fshl_i32:
; RV32IBT: # %bb.0:
; RV32IBT-NEXT: andi a2, a2, 31
; RV32IBT-NEXT: fsl a0, a0, a1, a2
; RV32IBT-NEXT: ret
%1 = tail call i32 @llvm.fshl.i32(i32 %a, i32 %b, i32 %c)
ret i32 %1
}
; As we are not matching directly i64 code patterns on RV32 some i64 patterns
; don't have yet an efficient pattern-matching with bit manipulation
; instructions on RV32.
; This test is presented here in case future expansions of the experimental-b
; extension introduce instructions that can match more efficiently this pattern.
declare i64 @llvm.fshl.i64(i64, i64, i64)
define i64 @fshl_i64(i64 %a, i64 %b, i64 %c) nounwind {
; RV32I-LABEL: fshl_i64:
; RV32I: # %bb.0:
; RV32I-NEXT: andi a5, a4, 63
; RV32I-NEXT: addi a7, a5, -32
; RV32I-NEXT: addi a6, zero, 31
; RV32I-NEXT: bltz a7, .LBB13_2
; RV32I-NEXT: # %bb.1:
; RV32I-NEXT: sll a1, a0, a7
; RV32I-NEXT: j .LBB13_3
; RV32I-NEXT: .LBB13_2:
; RV32I-NEXT: sll t0, a1, a4
; RV32I-NEXT: sub a5, a6, a5
; RV32I-NEXT: srli a1, a0, 1
; RV32I-NEXT: srl a1, a1, a5
; RV32I-NEXT: or a1, t0, a1
; RV32I-NEXT: .LBB13_3:
; RV32I-NEXT: not t2, a4
; RV32I-NEXT: andi t1, t2, 63
; RV32I-NEXT: addi a5, t1, -32
; RV32I-NEXT: srli t0, a3, 1
; RV32I-NEXT: bltz a5, .LBB13_5
; RV32I-NEXT: # %bb.4:
; RV32I-NEXT: srl a2, t0, a5
; RV32I-NEXT: bltz a7, .LBB13_6
; RV32I-NEXT: j .LBB13_7
; RV32I-NEXT: .LBB13_5:
; RV32I-NEXT: srl a5, t0, t2
; RV32I-NEXT: or a1, a1, a5
; RV32I-NEXT: slli a3, a3, 31
; RV32I-NEXT: srli a2, a2, 1
; RV32I-NEXT: or a2, a2, a3
; RV32I-NEXT: srl a2, a2, t2
; RV32I-NEXT: sub a3, a6, t1
; RV32I-NEXT: slli a5, t0, 1
; RV32I-NEXT: sll a3, a5, a3
; RV32I-NEXT: or a2, a2, a3
; RV32I-NEXT: bgez a7, .LBB13_7
; RV32I-NEXT: .LBB13_6:
; RV32I-NEXT: sll a0, a0, a4
; RV32I-NEXT: or a2, a2, a0
; RV32I-NEXT: .LBB13_7:
; RV32I-NEXT: mv a0, a2
; RV32I-NEXT: ret
;
; RV32IB-LABEL: fshl_i64:
; RV32IB: # %bb.0:
; RV32IB-NEXT: sll a7, a1, a4
; RV32IB-NEXT: andi a5, a4, 63
; RV32IB-NEXT: addi a6, zero, 31
; RV32IB-NEXT: sub t0, a6, a5
; RV32IB-NEXT: srli a1, a0, 1
; RV32IB-NEXT: srl a1, a1, t0
; RV32IB-NEXT: or a7, a7, a1
; RV32IB-NEXT: addi t1, a5, -32
; RV32IB-NEXT: sll t0, a0, t1
; RV32IB-NEXT: slti a1, t1, 0
; RV32IB-NEXT: cmov t0, a1, a7, t0
; RV32IB-NEXT: not a7, a4
; RV32IB-NEXT: srli t4, a3, 1
; RV32IB-NEXT: srl t2, t4, a7
; RV32IB-NEXT: addi a1, zero, 63
; RV32IB-NEXT: andn t3, a1, a4
; RV32IB-NEXT: addi a5, t3, -32
; RV32IB-NEXT: srai a1, a5, 31
; RV32IB-NEXT: and a1, a1, t2
; RV32IB-NEXT: or a1, t0, a1
; RV32IB-NEXT: fsri a2, a2, a3, 1
; RV32IB-NEXT: srl a7, a2, a7
; RV32IB-NEXT: sub a3, a6, t3
; RV32IB-NEXT: slli a2, t4, 1
; RV32IB-NEXT: sll a2, a2, a3
; RV32IB-NEXT: or a2, a7, a2
; RV32IB-NEXT: srl a3, t4, a5
; RV32IB-NEXT: slti a5, a5, 0
; RV32IB-NEXT: cmov a2, a5, a2, a3
; RV32IB-NEXT: sll a0, a0, a4
; RV32IB-NEXT: srai a3, t1, 31
; RV32IB-NEXT: and a0, a3, a0
; RV32IB-NEXT: or a0, a0, a2
; RV32IB-NEXT: ret
;
; RV32IBT-LABEL: fshl_i64:
; RV32IBT: # %bb.0:
; RV32IBT-NEXT: sll a7, a1, a4
; RV32IBT-NEXT: andi a5, a4, 63
; RV32IBT-NEXT: addi a6, zero, 31
; RV32IBT-NEXT: sub t0, a6, a5
; RV32IBT-NEXT: srli a1, a0, 1
; RV32IBT-NEXT: srl a1, a1, t0
; RV32IBT-NEXT: or a7, a7, a1
; RV32IBT-NEXT: addi t1, a5, -32
; RV32IBT-NEXT: sll t0, a0, t1
; RV32IBT-NEXT: slti a1, t1, 0
; RV32IBT-NEXT: cmov t0, a1, a7, t0
; RV32IBT-NEXT: not a5, a4
; RV32IBT-NEXT: srli a7, a3, 1
; RV32IBT-NEXT: srl t4, a7, a5
; RV32IBT-NEXT: andi t2, a5, 63
; RV32IBT-NEXT: addi t3, t2, -32
; RV32IBT-NEXT: srai a1, t3, 31
; RV32IBT-NEXT: and a1, a1, t4
; RV32IBT-NEXT: or a1, t0, a1
; RV32IBT-NEXT: fsri a2, a2, a3, 1
; RV32IBT-NEXT: srl a2, a2, a5
; RV32IBT-NEXT: sub a3, a6, t2
; RV32IBT-NEXT: slli a5, a7, 1
; RV32IBT-NEXT: sll a3, a5, a3
; RV32IBT-NEXT: or a2, a2, a3
; RV32IBT-NEXT: srl a3, a7, t3
; RV32IBT-NEXT: slti a5, t3, 0
; RV32IBT-NEXT: cmov a2, a5, a2, a3
; RV32IBT-NEXT: sll a0, a0, a4
; RV32IBT-NEXT: srai a3, t1, 31
; RV32IBT-NEXT: and a0, a3, a0
; RV32IBT-NEXT: or a0, a0, a2
; RV32IBT-NEXT: ret
%1 = tail call i64 @llvm.fshl.i64(i64 %a, i64 %b, i64 %c)
ret i64 %1
}
declare i32 @llvm.fshr.i32(i32, i32, i32)
define i32 @fshr_i32(i32 %a, i32 %b, i32 %c) nounwind {
; RV32I-LABEL: fshr_i32:
; RV32I: # %bb.0:
; RV32I-NEXT: srl a1, a1, a2
; RV32I-NEXT: not a2, a2
; RV32I-NEXT: slli a0, a0, 1
; RV32I-NEXT: sll a0, a0, a2
; RV32I-NEXT: or a0, a0, a1
; RV32I-NEXT: ret
;
; RV32IB-LABEL: fshr_i32:
; RV32IB: # %bb.0:
; RV32IB-NEXT: andi a2, a2, 31
; RV32IB-NEXT: fsr a0, a1, a0, a2
; RV32IB-NEXT: ret
;
; RV32IBT-LABEL: fshr_i32:
; RV32IBT: # %bb.0:
; RV32IBT-NEXT: andi a2, a2, 31
; RV32IBT-NEXT: fsr a0, a1, a0, a2
; RV32IBT-NEXT: ret
%1 = tail call i32 @llvm.fshr.i32(i32 %a, i32 %b, i32 %c)
ret i32 %1
}
; As we are not matching directly i64 code patterns on RV32 some i64 patterns
; don't have yet an efficient pattern-matching with bit manipulation
; instructions on RV32.
; This test is presented here in case future expansions of the experimental-b
; extension introduce instructions that can match more efficiently this pattern.
declare i64 @llvm.fshr.i64(i64, i64, i64)
define i64 @fshr_i64(i64 %a, i64 %b, i64 %c) nounwind {
; RV32I-LABEL: fshr_i64:
; RV32I: # %bb.0:
; RV32I-NEXT: mv t0, a0
; RV32I-NEXT: andi a0, a4, 63
; RV32I-NEXT: addi a6, a0, -32
; RV32I-NEXT: addi a7, zero, 31
; RV32I-NEXT: bltz a6, .LBB15_2
; RV32I-NEXT: # %bb.1:
; RV32I-NEXT: srl a0, a3, a6
; RV32I-NEXT: j .LBB15_3
; RV32I-NEXT: .LBB15_2:
; RV32I-NEXT: srl a2, a2, a4
; RV32I-NEXT: sub a0, a7, a0
; RV32I-NEXT: slli a5, a3, 1
; RV32I-NEXT: sll a0, a5, a0
; RV32I-NEXT: or a0, a2, a0
; RV32I-NEXT: .LBB15_3:
; RV32I-NEXT: not t2, a4
; RV32I-NEXT: andi a5, t2, 63
; RV32I-NEXT: addi a2, a5, -32
; RV32I-NEXT: slli t1, t0, 1
; RV32I-NEXT: bltz a2, .LBB15_5
; RV32I-NEXT: # %bb.4:
; RV32I-NEXT: sll a1, t1, a2
; RV32I-NEXT: bltz a6, .LBB15_6
; RV32I-NEXT: j .LBB15_7
; RV32I-NEXT: .LBB15_5:
; RV32I-NEXT: sll a2, t1, t2
; RV32I-NEXT: or a0, a0, a2
; RV32I-NEXT: lui a2, 524288
; RV32I-NEXT: addi a2, a2, -1
; RV32I-NEXT: and a2, t0, a2
; RV32I-NEXT: sub a5, a7, a5
; RV32I-NEXT: srl a2, a2, a5
; RV32I-NEXT: srli a5, t0, 31
; RV32I-NEXT: slli a1, a1, 1
; RV32I-NEXT: or a1, a1, a5
; RV32I-NEXT: sll a1, a1, t2
; RV32I-NEXT: or a1, a1, a2
; RV32I-NEXT: bgez a6, .LBB15_7
; RV32I-NEXT: .LBB15_6:
; RV32I-NEXT: srl a2, a3, a4
; RV32I-NEXT: or a1, a1, a2
; RV32I-NEXT: .LBB15_7:
; RV32I-NEXT: ret
;
; RV32IB-LABEL: fshr_i64:
; RV32IB: # %bb.0:
; RV32IB-NEXT: srl a7, a2, a4
; RV32IB-NEXT: andi a5, a4, 63
; RV32IB-NEXT: addi a6, zero, 31
; RV32IB-NEXT: sub t0, a6, a5
; RV32IB-NEXT: slli a2, a3, 1
; RV32IB-NEXT: sll a2, a2, t0
; RV32IB-NEXT: or a7, a7, a2
; RV32IB-NEXT: addi t2, a5, -32
; RV32IB-NEXT: srl t0, a3, t2
; RV32IB-NEXT: slti a2, t2, 0
; RV32IB-NEXT: cmov a7, a2, a7, t0
; RV32IB-NEXT: not t3, a4
; RV32IB-NEXT: slli t0, a0, 1
; RV32IB-NEXT: sll t1, t0, t3
; RV32IB-NEXT: addi a5, zero, 63
; RV32IB-NEXT: andn t4, a5, a4
; RV32IB-NEXT: addi a2, t4, -32
; RV32IB-NEXT: srai a5, a2, 31
; RV32IB-NEXT: and a5, a5, t1
; RV32IB-NEXT: or a7, a5, a7
; RV32IB-NEXT: fsri a1, a0, a1, 31
; RV32IB-NEXT: sll a1, a1, t3
; RV32IB-NEXT: sub a5, a6, t4
; RV32IB-NEXT: bclri a0, a0, 31
; RV32IB-NEXT: srl a0, a0, a5
; RV32IB-NEXT: or a0, a1, a0
; RV32IB-NEXT: sll a1, t0, a2
; RV32IB-NEXT: slti a2, a2, 0
; RV32IB-NEXT: cmov a0, a2, a0, a1
; RV32IB-NEXT: srl a1, a3, a4
; RV32IB-NEXT: srai a2, t2, 31
; RV32IB-NEXT: and a1, a2, a1
; RV32IB-NEXT: or a1, a0, a1
; RV32IB-NEXT: mv a0, a7
; RV32IB-NEXT: ret
;
; RV32IBT-LABEL: fshr_i64:
; RV32IBT: # %bb.0:
; RV32IBT-NEXT: srl a7, a2, a4
; RV32IBT-NEXT: andi a5, a4, 63
; RV32IBT-NEXT: addi a6, zero, 31
; RV32IBT-NEXT: sub t0, a6, a5
; RV32IBT-NEXT: slli a2, a3, 1
; RV32IBT-NEXT: sll a2, a2, t0
; RV32IBT-NEXT: or a7, a7, a2
; RV32IBT-NEXT: addi t2, a5, -32
; RV32IBT-NEXT: srl t0, a3, t2
; RV32IBT-NEXT: slti a2, t2, 0
; RV32IBT-NEXT: cmov a7, a2, a7, t0
; RV32IBT-NEXT: not t4, a4
; RV32IBT-NEXT: slli t0, a0, 1
; RV32IBT-NEXT: sll t1, t0, t4
; RV32IBT-NEXT: andi t3, t4, 63
; RV32IBT-NEXT: addi a5, t3, -32
; RV32IBT-NEXT: srai a2, a5, 31
; RV32IBT-NEXT: and a2, a2, t1
; RV32IBT-NEXT: or a7, a2, a7
; RV32IBT-NEXT: lui a2, 524288
; RV32IBT-NEXT: addi a2, a2, -1
; RV32IBT-NEXT: and t1, a0, a2
; RV32IBT-NEXT: sub a2, a6, t3
; RV32IBT-NEXT: srl a2, t1, a2
; RV32IBT-NEXT: fsri a0, a0, a1, 31
; RV32IBT-NEXT: sll a0, a0, t4
; RV32IBT-NEXT: or a0, a0, a2
; RV32IBT-NEXT: sll a1, t0, a5
; RV32IBT-NEXT: slti a2, a5, 0
; RV32IBT-NEXT: cmov a0, a2, a0, a1
; RV32IBT-NEXT: srl a1, a3, a4
; RV32IBT-NEXT: srai a2, t2, 31
; RV32IBT-NEXT: and a1, a2, a1
; RV32IBT-NEXT: or a1, a0, a1
; RV32IBT-NEXT: mv a0, a7
; RV32IBT-NEXT: ret
%1 = tail call i64 @llvm.fshr.i64(i64 %a, i64 %b, i64 %c)
ret i64 %1
}
define i32 @fshri_i32(i32 %a, i32 %b) nounwind {
; RV32I-LABEL: fshri_i32:
; RV32I: # %bb.0:
; RV32I-NEXT: srli a1, a1, 5
; RV32I-NEXT: slli a0, a0, 27
; RV32I-NEXT: or a0, a0, a1
; RV32I-NEXT: ret
;
; RV32IB-LABEL: fshri_i32:
; RV32IB: # %bb.0:
; RV32IB-NEXT: fsri a0, a1, a0, 5
; RV32IB-NEXT: ret
;
; RV32IBT-LABEL: fshri_i32:
; RV32IBT: # %bb.0:
; RV32IBT-NEXT: fsri a0, a1, a0, 5
; RV32IBT-NEXT: ret
%1 = tail call i32 @llvm.fshr.i32(i32 %a, i32 %b, i32 5)
ret i32 %1
}
define i64 @fshri_i64(i64 %a, i64 %b) nounwind {
; RV32I-LABEL: fshri_i64:
; RV32I: # %bb.0:
; RV32I-NEXT: slli a1, a3, 27
; RV32I-NEXT: srli a2, a2, 5
; RV32I-NEXT: or a2, a2, a1
; RV32I-NEXT: srli a1, a3, 5
; RV32I-NEXT: slli a0, a0, 27
; RV32I-NEXT: or a1, a0, a1
; RV32I-NEXT: mv a0, a2
; RV32I-NEXT: ret
;
; RV32IB-LABEL: fshri_i64:
; RV32IB: # %bb.0:
; RV32IB-NEXT: fsri a2, a2, a3, 5
; RV32IB-NEXT: fsri a1, a3, a0, 5
; RV32IB-NEXT: mv a0, a2
; RV32IB-NEXT: ret
;
; RV32IBT-LABEL: fshri_i64:
; RV32IBT: # %bb.0:
; RV32IBT-NEXT: fsri a2, a2, a3, 5
; RV32IBT-NEXT: fsri a1, a3, a0, 5
; RV32IBT-NEXT: mv a0, a2
; RV32IBT-NEXT: ret
%1 = tail call i64 @llvm.fshr.i64(i64 %a, i64 %b, i64 5)
ret i64 %1
}
define i32 @fshli_i32(i32 %a, i32 %b) nounwind {
; RV32I-LABEL: fshli_i32:
; RV32I: # %bb.0:
; RV32I-NEXT: srli a1, a1, 27
; RV32I-NEXT: slli a0, a0, 5
; RV32I-NEXT: or a0, a0, a1
; RV32I-NEXT: ret
;
; RV32IB-LABEL: fshli_i32:
; RV32IB: # %bb.0:
; RV32IB-NEXT: fsri a0, a1, a0, 27
; RV32IB-NEXT: ret
;
; RV32IBT-LABEL: fshli_i32:
; RV32IBT: # %bb.0:
; RV32IBT-NEXT: fsri a0, a1, a0, 27
; RV32IBT-NEXT: ret
%1 = tail call i32 @llvm.fshl.i32(i32 %a, i32 %b, i32 5)
ret i32 %1
}
define i64 @fshli_i64(i64 %a, i64 %b) nounwind {
; RV32I-LABEL: fshli_i64:
; RV32I: # %bb.0:
; RV32I-NEXT: srli a2, a3, 27
; RV32I-NEXT: slli a3, a0, 5
; RV32I-NEXT: or a2, a3, a2
; RV32I-NEXT: srli a0, a0, 27
; RV32I-NEXT: slli a1, a1, 5
; RV32I-NEXT: or a1, a1, a0
; RV32I-NEXT: mv a0, a2
; RV32I-NEXT: ret
;
; RV32IB-LABEL: fshli_i64:
; RV32IB: # %bb.0:
; RV32IB-NEXT: fsri a2, a3, a0, 27
; RV32IB-NEXT: fsri a1, a0, a1, 27
; RV32IB-NEXT: mv a0, a2
; RV32IB-NEXT: ret
;
; RV32IBT-LABEL: fshli_i64:
; RV32IBT: # %bb.0:
; RV32IBT-NEXT: fsri a2, a3, a0, 27
; RV32IBT-NEXT: fsri a1, a0, a1, 27
; RV32IBT-NEXT: mv a0, a2
; RV32IBT-NEXT: ret
%1 = tail call i64 @llvm.fshl.i64(i64 %a, i64 %b, i64 5)
ret i64 %1
}
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