; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=riscv64 -verify-machineinstrs < %s \
; RUN: | FileCheck %s -check-prefix=RV64I
; RUN: llc -mtriple=riscv64 -mattr=+zbb -verify-machineinstrs < %s \
; RUN: | FileCheck %s -check-prefix=RV64ZBB
declare i32 @llvm.ctlz.i32(i32, i1)
define signext i32 @ctlz_i32(i32 signext %a) nounwind {
; RV64I-LABEL: ctlz_i32:
; RV64I: # %bb.0:
; RV64I-NEXT: sext.w a1, a0
; RV64I-NEXT: beqz a1, .LBB0_2
; RV64I-NEXT: # %bb.1: # %cond.false
; RV64I-NEXT: addi sp, sp, -16
; RV64I-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
; RV64I-NEXT: srliw a1, a0, 1
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: srliw a1, a0, 2
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: srliw a1, a0, 4
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: srliw a1, a0, 8
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: srliw a1, a0, 16
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: not a0, a0
; RV64I-NEXT: srli a1, a0, 1
; RV64I-NEXT: lui a2, 349525
; RV64I-NEXT: addiw a2, a2, 1365
; RV64I-NEXT: and a1, a1, a2
; RV64I-NEXT: subw a0, a0, a1
; RV64I-NEXT: lui a1, 209715
; RV64I-NEXT: addiw a1, a1, 819
; RV64I-NEXT: and a2, a0, a1
; RV64I-NEXT: srli a0, a0, 2
; RV64I-NEXT: and a0, a0, a1
; RV64I-NEXT: add a0, a2, a0
; RV64I-NEXT: srli a1, a0, 4
; RV64I-NEXT: add a0, a0, a1
; RV64I-NEXT: lui a1, 61681
; RV64I-NEXT: addiw a1, a1, -241
; RV64I-NEXT: and a0, a0, a1
; RV64I-NEXT: lui a1, 4112
; RV64I-NEXT: addiw a1, a1, 257
; RV64I-NEXT: call __muldi3@plt
; RV64I-NEXT: srliw a0, a0, 24
; RV64I-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
; RV64I-NEXT: addi sp, sp, 16
; RV64I-NEXT: ret
; RV64I-NEXT: .LBB0_2:
; RV64I-NEXT: li a0, 32
; RV64I-NEXT: ret
;
; RV64ZBB-LABEL: ctlz_i32:
; RV64ZBB: # %bb.0:
; RV64ZBB-NEXT: clzw a0, a0
; RV64ZBB-NEXT: ret
%1 = call i32 @llvm.ctlz.i32(i32 %a, i1 false)
ret i32 %1
}
define signext i32 @log2_i32(i32 signext %a) nounwind {
; RV64I-LABEL: log2_i32:
; RV64I: # %bb.0:
; RV64I-NEXT: sext.w a1, a0
; RV64I-NEXT: beqz a1, .LBB1_2
; RV64I-NEXT: # %bb.1: # %cond.false
; RV64I-NEXT: addi sp, sp, -16
; RV64I-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
; RV64I-NEXT: srliw a1, a0, 1
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: srliw a1, a0, 2
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: srliw a1, a0, 4
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: srliw a1, a0, 8
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: srliw a1, a0, 16
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: not a0, a0
; RV64I-NEXT: srli a1, a0, 1
; RV64I-NEXT: lui a2, 349525
; RV64I-NEXT: addiw a2, a2, 1365
; RV64I-NEXT: and a1, a1, a2
; RV64I-NEXT: subw a0, a0, a1
; RV64I-NEXT: lui a1, 209715
; RV64I-NEXT: addiw a1, a1, 819
; RV64I-NEXT: and a2, a0, a1
; RV64I-NEXT: srli a0, a0, 2
; RV64I-NEXT: and a0, a0, a1
; RV64I-NEXT: add a0, a2, a0
; RV64I-NEXT: srli a1, a0, 4
; RV64I-NEXT: add a0, a0, a1
; RV64I-NEXT: lui a1, 61681
; RV64I-NEXT: addiw a1, a1, -241
; RV64I-NEXT: and a0, a0, a1
; RV64I-NEXT: lui a1, 4112
; RV64I-NEXT: addiw a1, a1, 257
; RV64I-NEXT: call __muldi3@plt
; RV64I-NEXT: srliw a0, a0, 24
; RV64I-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
; RV64I-NEXT: addi sp, sp, 16
; RV64I-NEXT: j .LBB1_3
; RV64I-NEXT: .LBB1_2:
; RV64I-NEXT: li a0, 32
; RV64I-NEXT: .LBB1_3: # %cond.end
; RV64I-NEXT: li a1, 31
; RV64I-NEXT: sub a0, a1, a0
; RV64I-NEXT: ret
;
; RV64ZBB-LABEL: log2_i32:
; RV64ZBB: # %bb.0:
; RV64ZBB-NEXT: clzw a0, a0
; RV64ZBB-NEXT: li a1, 31
; RV64ZBB-NEXT: sub a0, a1, a0
; RV64ZBB-NEXT: ret
%1 = call i32 @llvm.ctlz.i32(i32 %a, i1 false)
%2 = sub i32 31, %1
ret i32 %2
}
define signext i32 @log2_ceil_i32(i32 signext %a) nounwind {
; RV64I-LABEL: log2_ceil_i32:
; RV64I: # %bb.0:
; RV64I-NEXT: addi sp, sp, -16
; RV64I-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
; RV64I-NEXT: sd s0, 0(sp) # 8-byte Folded Spill
; RV64I-NEXT: addiw a0, a0, -1
; RV64I-NEXT: li s0, 32
; RV64I-NEXT: li a1, 32
; RV64I-NEXT: beqz a0, .LBB2_2
; RV64I-NEXT: # %bb.1: # %cond.false
; RV64I-NEXT: srliw a1, a0, 1
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: srliw a1, a0, 2
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: srliw a1, a0, 4
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: srliw a1, a0, 8
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: srliw a1, a0, 16
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: not a0, a0
; RV64I-NEXT: srli a1, a0, 1
; RV64I-NEXT: lui a2, 349525
; RV64I-NEXT: addiw a2, a2, 1365
; RV64I-NEXT: and a1, a1, a2
; RV64I-NEXT: subw a0, a0, a1
; RV64I-NEXT: lui a1, 209715
; RV64I-NEXT: addiw a1, a1, 819
; RV64I-NEXT: and a2, a0, a1
; RV64I-NEXT: srli a0, a0, 2
; RV64I-NEXT: and a0, a0, a1
; RV64I-NEXT: add a0, a2, a0
; RV64I-NEXT: srli a1, a0, 4
; RV64I-NEXT: add a0, a0, a1
; RV64I-NEXT: lui a1, 61681
; RV64I-NEXT: addiw a1, a1, -241
; RV64I-NEXT: and a0, a0, a1
; RV64I-NEXT: lui a1, 4112
; RV64I-NEXT: addiw a1, a1, 257
; RV64I-NEXT: call __muldi3@plt
; RV64I-NEXT: srliw a1, a0, 24
; RV64I-NEXT: .LBB2_2: # %cond.end
; RV64I-NEXT: sub a0, s0, a1
; RV64I-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
; RV64I-NEXT: ld s0, 0(sp) # 8-byte Folded Reload
; RV64I-NEXT: addi sp, sp, 16
; RV64I-NEXT: ret
;
; RV64ZBB-LABEL: log2_ceil_i32:
; RV64ZBB: # %bb.0:
; RV64ZBB-NEXT: addiw a0, a0, -1
; RV64ZBB-NEXT: clzw a0, a0
; RV64ZBB-NEXT: li a1, 32
; RV64ZBB-NEXT: sub a0, a1, a0
; RV64ZBB-NEXT: ret
%1 = sub i32 %a, 1
%2 = call i32 @llvm.ctlz.i32(i32 %1, i1 false)
%3 = sub i32 32, %2
ret i32 %3
}
define signext i32 @findLastSet_i32(i32 signext %a) nounwind {
; RV64I-LABEL: findLastSet_i32:
; RV64I: # %bb.0:
; RV64I-NEXT: addi sp, sp, -16
; RV64I-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
; RV64I-NEXT: sd s0, 0(sp) # 8-byte Folded Spill
; RV64I-NEXT: mv s0, a0
; RV64I-NEXT: srliw a0, a0, 1
; RV64I-NEXT: or a0, s0, a0
; RV64I-NEXT: srliw a1, a0, 2
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: srliw a1, a0, 4
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: srliw a1, a0, 8
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: srliw a1, a0, 16
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: not a0, a0
; RV64I-NEXT: srli a1, a0, 1
; RV64I-NEXT: lui a2, 349525
; RV64I-NEXT: addiw a2, a2, 1365
; RV64I-NEXT: and a1, a1, a2
; RV64I-NEXT: subw a0, a0, a1
; RV64I-NEXT: lui a1, 209715
; RV64I-NEXT: addiw a1, a1, 819
; RV64I-NEXT: and a2, a0, a1
; RV64I-NEXT: srli a0, a0, 2
; RV64I-NEXT: and a0, a0, a1
; RV64I-NEXT: add a0, a2, a0
; RV64I-NEXT: srli a1, a0, 4
; RV64I-NEXT: add a0, a0, a1
; RV64I-NEXT: lui a1, 61681
; RV64I-NEXT: addiw a1, a1, -241
; RV64I-NEXT: and a0, a0, a1
; RV64I-NEXT: lui a1, 4112
; RV64I-NEXT: addiw a1, a1, 257
; RV64I-NEXT: call __muldi3@plt
; RV64I-NEXT: mv a1, a0
; RV64I-NEXT: li a0, -1
; RV64I-NEXT: beqz s0, .LBB3_2
; RV64I-NEXT: # %bb.1:
; RV64I-NEXT: srliw a0, a1, 24
; RV64I-NEXT: xori a0, a0, 31
; RV64I-NEXT: .LBB3_2:
; RV64I-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
; RV64I-NEXT: ld s0, 0(sp) # 8-byte Folded Reload
; RV64I-NEXT: addi sp, sp, 16
; RV64I-NEXT: ret
;
; RV64ZBB-LABEL: findLastSet_i32:
; RV64ZBB: # %bb.0:
; RV64ZBB-NEXT: mv a1, a0
; RV64ZBB-NEXT: li a0, -1
; RV64ZBB-NEXT: beqz a1, .LBB3_2
; RV64ZBB-NEXT: # %bb.1:
; RV64ZBB-NEXT: clzw a0, a1
; RV64ZBB-NEXT: xori a0, a0, 31
; RV64ZBB-NEXT: .LBB3_2:
; RV64ZBB-NEXT: ret
%1 = call i32 @llvm.ctlz.i32(i32 %a, i1 true)
%2 = xor i32 31, %1
%3 = icmp eq i32 %a, 0
%4 = select i1 %3, i32 -1, i32 %2
ret i32 %4
}
define i32 @ctlz_lshr_i32(i32 signext %a) {
; RV64I-LABEL: ctlz_lshr_i32:
; RV64I: # %bb.0:
; RV64I-NEXT: srliw a0, a0, 1
; RV64I-NEXT: beqz a0, .LBB4_2
; RV64I-NEXT: # %bb.1: # %cond.false
; RV64I-NEXT: addi sp, sp, -16
; RV64I-NEXT: .cfi_def_cfa_offset 16
; RV64I-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
; RV64I-NEXT: .cfi_offset ra, -8
; RV64I-NEXT: srliw a1, a0, 1
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: srliw a1, a0, 2
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: srliw a1, a0, 4
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: srliw a1, a0, 8
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: srliw a1, a0, 16
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: not a0, a0
; RV64I-NEXT: srli a1, a0, 1
; RV64I-NEXT: lui a2, 349525
; RV64I-NEXT: addiw a2, a2, 1365
; RV64I-NEXT: and a1, a1, a2
; RV64I-NEXT: subw a0, a0, a1
; RV64I-NEXT: lui a1, 209715
; RV64I-NEXT: addiw a1, a1, 819
; RV64I-NEXT: and a2, a0, a1
; RV64I-NEXT: srli a0, a0, 2
; RV64I-NEXT: and a0, a0, a1
; RV64I-NEXT: add a0, a2, a0
; RV64I-NEXT: srli a1, a0, 4
; RV64I-NEXT: add a0, a0, a1
; RV64I-NEXT: lui a1, 61681
; RV64I-NEXT: addiw a1, a1, -241
; RV64I-NEXT: and a0, a0, a1
; RV64I-NEXT: lui a1, 4112
; RV64I-NEXT: addiw a1, a1, 257
; RV64I-NEXT: call __muldi3@plt
; RV64I-NEXT: srliw a0, a0, 24
; RV64I-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
; RV64I-NEXT: addi sp, sp, 16
; RV64I-NEXT: ret
; RV64I-NEXT: .LBB4_2:
; RV64I-NEXT: li a0, 32
; RV64I-NEXT: ret
;
; RV64ZBB-LABEL: ctlz_lshr_i32:
; RV64ZBB: # %bb.0:
; RV64ZBB-NEXT: srliw a0, a0, 1
; RV64ZBB-NEXT: clzw a0, a0
; RV64ZBB-NEXT: ret
%1 = lshr i32 %a, 1
%2 = call i32 @llvm.ctlz.i32(i32 %1, i1 false)
ret i32 %2
}
declare i64 @llvm.ctlz.i64(i64, i1)
define i64 @ctlz_i64(i64 %a) nounwind {
; RV64I-LABEL: ctlz_i64:
; RV64I: # %bb.0:
; RV64I-NEXT: beqz a0, .LBB5_2
; RV64I-NEXT: # %bb.1: # %cond.false
; RV64I-NEXT: addi sp, sp, -16
; RV64I-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
; RV64I-NEXT: srli a1, a0, 1
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: srli a1, a0, 2
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: srli a1, a0, 4
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: srli a1, a0, 8
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: srli a1, a0, 16
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: srli a1, a0, 32
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: not a0, a0
; RV64I-NEXT: lui a1, %hi(.LCPI5_0)
; RV64I-NEXT: ld a1, %lo(.LCPI5_0)(a1)
; RV64I-NEXT: lui a2, %hi(.LCPI5_1)
; RV64I-NEXT: ld a2, %lo(.LCPI5_1)(a2)
; RV64I-NEXT: srli a3, a0, 1
; RV64I-NEXT: and a1, a3, a1
; RV64I-NEXT: sub a0, a0, a1
; RV64I-NEXT: and a1, a0, a2
; RV64I-NEXT: srli a0, a0, 2
; RV64I-NEXT: and a0, a0, a2
; RV64I-NEXT: lui a2, %hi(.LCPI5_2)
; RV64I-NEXT: ld a2, %lo(.LCPI5_2)(a2)
; RV64I-NEXT: add a0, a1, a0
; RV64I-NEXT: srli a1, a0, 4
; RV64I-NEXT: add a0, a0, a1
; RV64I-NEXT: and a0, a0, a2
; RV64I-NEXT: lui a1, %hi(.LCPI5_3)
; RV64I-NEXT: ld a1, %lo(.LCPI5_3)(a1)
; RV64I-NEXT: call __muldi3@plt
; RV64I-NEXT: srli a0, a0, 56
; RV64I-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
; RV64I-NEXT: addi sp, sp, 16
; RV64I-NEXT: ret
; RV64I-NEXT: .LBB5_2:
; RV64I-NEXT: li a0, 64
; RV64I-NEXT: ret
;
; RV64ZBB-LABEL: ctlz_i64:
; RV64ZBB: # %bb.0:
; RV64ZBB-NEXT: clz a0, a0
; RV64ZBB-NEXT: ret
%1 = call i64 @llvm.ctlz.i64(i64 %a, i1 false)
ret i64 %1
}
declare i32 @llvm.cttz.i32(i32, i1)
define signext i32 @cttz_i32(i32 signext %a) nounwind {
; RV64I-LABEL: cttz_i32:
; RV64I: # %bb.0:
; RV64I-NEXT: sext.w a1, a0
; RV64I-NEXT: beqz a1, .LBB6_2
; RV64I-NEXT: # %bb.1: # %cond.false
; RV64I-NEXT: addi sp, sp, -16
; RV64I-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
; RV64I-NEXT: addiw a1, a0, -1
; RV64I-NEXT: not a0, a0
; RV64I-NEXT: and a0, a0, a1
; RV64I-NEXT: srli a1, a0, 1
; RV64I-NEXT: lui a2, 349525
; RV64I-NEXT: addiw a2, a2, 1365
; RV64I-NEXT: and a1, a1, a2
; RV64I-NEXT: subw a0, a0, a1
; RV64I-NEXT: lui a1, 209715
; RV64I-NEXT: addiw a1, a1, 819
; RV64I-NEXT: and a2, a0, a1
; RV64I-NEXT: srli a0, a0, 2
; RV64I-NEXT: and a0, a0, a1
; RV64I-NEXT: add a0, a2, a0
; RV64I-NEXT: srli a1, a0, 4
; RV64I-NEXT: add a0, a0, a1
; RV64I-NEXT: lui a1, 61681
; RV64I-NEXT: addiw a1, a1, -241
; RV64I-NEXT: and a0, a0, a1
; RV64I-NEXT: lui a1, 4112
; RV64I-NEXT: addiw a1, a1, 257
; RV64I-NEXT: call __muldi3@plt
; RV64I-NEXT: srliw a0, a0, 24
; RV64I-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
; RV64I-NEXT: addi sp, sp, 16
; RV64I-NEXT: ret
; RV64I-NEXT: .LBB6_2:
; RV64I-NEXT: li a0, 32
; RV64I-NEXT: ret
;
; RV64ZBB-LABEL: cttz_i32:
; RV64ZBB: # %bb.0:
; RV64ZBB-NEXT: ctzw a0, a0
; RV64ZBB-NEXT: ret
%1 = call i32 @llvm.cttz.i32(i32 %a, i1 false)
ret i32 %1
}
define signext i32 @cttz_zero_undef_i32(i32 signext %a) nounwind {
; RV64I-LABEL: cttz_zero_undef_i32:
; RV64I: # %bb.0:
; RV64I-NEXT: addi sp, sp, -16
; RV64I-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
; RV64I-NEXT: addiw a1, a0, -1
; RV64I-NEXT: not a0, a0
; RV64I-NEXT: and a0, a0, a1
; RV64I-NEXT: srli a1, a0, 1
; RV64I-NEXT: lui a2, 349525
; RV64I-NEXT: addiw a2, a2, 1365
; RV64I-NEXT: and a1, a1, a2
; RV64I-NEXT: subw a0, a0, a1
; RV64I-NEXT: lui a1, 209715
; RV64I-NEXT: addiw a1, a1, 819
; RV64I-NEXT: and a2, a0, a1
; RV64I-NEXT: srli a0, a0, 2
; RV64I-NEXT: and a0, a0, a1
; RV64I-NEXT: add a0, a2, a0
; RV64I-NEXT: srli a1, a0, 4
; RV64I-NEXT: add a0, a0, a1
; RV64I-NEXT: lui a1, 61681
; RV64I-NEXT: addiw a1, a1, -241
; RV64I-NEXT: and a0, a0, a1
; RV64I-NEXT: lui a1, 4112
; RV64I-NEXT: addiw a1, a1, 257
; RV64I-NEXT: call __muldi3@plt
; RV64I-NEXT: srliw a0, a0, 24
; RV64I-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
; RV64I-NEXT: addi sp, sp, 16
; RV64I-NEXT: ret
;
; RV64ZBB-LABEL: cttz_zero_undef_i32:
; RV64ZBB: # %bb.0:
; RV64ZBB-NEXT: ctzw a0, a0
; RV64ZBB-NEXT: ret
%1 = call i32 @llvm.cttz.i32(i32 %a, i1 true)
ret i32 %1
}
define signext i32 @findFirstSet_i32(i32 signext %a) nounwind {
; RV64I-LABEL: findFirstSet_i32:
; RV64I: # %bb.0:
; RV64I-NEXT: addi sp, sp, -16
; RV64I-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
; RV64I-NEXT: sd s0, 0(sp) # 8-byte Folded Spill
; RV64I-NEXT: mv s0, a0
; RV64I-NEXT: addiw a0, a0, -1
; RV64I-NEXT: not a1, s0
; RV64I-NEXT: and a0, a1, a0
; RV64I-NEXT: srli a1, a0, 1
; RV64I-NEXT: lui a2, 349525
; RV64I-NEXT: addiw a2, a2, 1365
; RV64I-NEXT: and a1, a1, a2
; RV64I-NEXT: subw a0, a0, a1
; RV64I-NEXT: lui a1, 209715
; RV64I-NEXT: addiw a1, a1, 819
; RV64I-NEXT: and a2, a0, a1
; RV64I-NEXT: srli a0, a0, 2
; RV64I-NEXT: and a0, a0, a1
; RV64I-NEXT: add a0, a2, a0
; RV64I-NEXT: srli a1, a0, 4
; RV64I-NEXT: add a0, a0, a1
; RV64I-NEXT: lui a1, 61681
; RV64I-NEXT: addiw a1, a1, -241
; RV64I-NEXT: and a0, a0, a1
; RV64I-NEXT: lui a1, 4112
; RV64I-NEXT: addiw a1, a1, 257
; RV64I-NEXT: call __muldi3@plt
; RV64I-NEXT: mv a1, a0
; RV64I-NEXT: li a0, -1
; RV64I-NEXT: beqz s0, .LBB8_2
; RV64I-NEXT: # %bb.1:
; RV64I-NEXT: srliw a0, a1, 24
; RV64I-NEXT: .LBB8_2:
; RV64I-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
; RV64I-NEXT: ld s0, 0(sp) # 8-byte Folded Reload
; RV64I-NEXT: addi sp, sp, 16
; RV64I-NEXT: ret
;
; RV64ZBB-LABEL: findFirstSet_i32:
; RV64ZBB: # %bb.0:
; RV64ZBB-NEXT: mv a1, a0
; RV64ZBB-NEXT: li a0, -1
; RV64ZBB-NEXT: beqz a1, .LBB8_2
; RV64ZBB-NEXT: # %bb.1:
; RV64ZBB-NEXT: ctzw a0, a1
; RV64ZBB-NEXT: .LBB8_2:
; RV64ZBB-NEXT: ret
%1 = call i32 @llvm.cttz.i32(i32 %a, i1 true)
%2 = icmp eq i32 %a, 0
%3 = select i1 %2, i32 -1, i32 %1
ret i32 %3
}
define signext i32 @ffs_i32(i32 signext %a) nounwind {
; RV64I-LABEL: ffs_i32:
; RV64I: # %bb.0:
; RV64I-NEXT: addi sp, sp, -16
; RV64I-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
; RV64I-NEXT: sd s0, 0(sp) # 8-byte Folded Spill
; RV64I-NEXT: mv s0, a0
; RV64I-NEXT: addiw a0, a0, -1
; RV64I-NEXT: not a1, s0
; RV64I-NEXT: and a0, a1, a0
; RV64I-NEXT: srli a1, a0, 1
; RV64I-NEXT: lui a2, 349525
; RV64I-NEXT: addiw a2, a2, 1365
; RV64I-NEXT: and a1, a1, a2
; RV64I-NEXT: subw a0, a0, a1
; RV64I-NEXT: lui a1, 209715
; RV64I-NEXT: addiw a1, a1, 819
; RV64I-NEXT: and a2, a0, a1
; RV64I-NEXT: srli a0, a0, 2
; RV64I-NEXT: and a0, a0, a1
; RV64I-NEXT: add a0, a2, a0
; RV64I-NEXT: srli a1, a0, 4
; RV64I-NEXT: add a0, a0, a1
; RV64I-NEXT: lui a1, 61681
; RV64I-NEXT: addiw a1, a1, -241
; RV64I-NEXT: and a0, a0, a1
; RV64I-NEXT: lui a1, 4112
; RV64I-NEXT: addiw a1, a1, 257
; RV64I-NEXT: call __muldi3@plt
; RV64I-NEXT: mv a1, a0
; RV64I-NEXT: li a0, 0
; RV64I-NEXT: beqz s0, .LBB9_2
; RV64I-NEXT: # %bb.1:
; RV64I-NEXT: srliw a0, a1, 24
; RV64I-NEXT: addi a0, a0, 1
; RV64I-NEXT: .LBB9_2:
; RV64I-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
; RV64I-NEXT: ld s0, 0(sp) # 8-byte Folded Reload
; RV64I-NEXT: addi sp, sp, 16
; RV64I-NEXT: ret
;
; RV64ZBB-LABEL: ffs_i32:
; RV64ZBB: # %bb.0:
; RV64ZBB-NEXT: mv a1, a0
; RV64ZBB-NEXT: li a0, 0
; RV64ZBB-NEXT: beqz a1, .LBB9_2
; RV64ZBB-NEXT: # %bb.1:
; RV64ZBB-NEXT: ctzw a0, a1
; RV64ZBB-NEXT: addi a0, a0, 1
; RV64ZBB-NEXT: .LBB9_2:
; RV64ZBB-NEXT: ret
%1 = call i32 @llvm.cttz.i32(i32 %a, i1 true)
%2 = add i32 %1, 1
%3 = icmp eq i32 %a, 0
%4 = select i1 %3, i32 0, i32 %2
ret i32 %4
}
declare i64 @llvm.cttz.i64(i64, i1)
define i64 @cttz_i64(i64 %a) nounwind {
; RV64I-LABEL: cttz_i64:
; RV64I: # %bb.0:
; RV64I-NEXT: beqz a0, .LBB10_2
; RV64I-NEXT: # %bb.1: # %cond.false
; RV64I-NEXT: addi sp, sp, -16
; RV64I-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
; RV64I-NEXT: addi a1, a0, -1
; RV64I-NEXT: not a0, a0
; RV64I-NEXT: and a0, a0, a1
; RV64I-NEXT: lui a1, %hi(.LCPI10_0)
; RV64I-NEXT: ld a1, %lo(.LCPI10_0)(a1)
; RV64I-NEXT: lui a2, %hi(.LCPI10_1)
; RV64I-NEXT: ld a2, %lo(.LCPI10_1)(a2)
; RV64I-NEXT: srli a3, a0, 1
; RV64I-NEXT: and a1, a3, a1
; RV64I-NEXT: sub a0, a0, a1
; RV64I-NEXT: and a1, a0, a2
; RV64I-NEXT: srli a0, a0, 2
; RV64I-NEXT: and a0, a0, a2
; RV64I-NEXT: lui a2, %hi(.LCPI10_2)
; RV64I-NEXT: ld a2, %lo(.LCPI10_2)(a2)
; RV64I-NEXT: add a0, a1, a0
; RV64I-NEXT: srli a1, a0, 4
; RV64I-NEXT: add a0, a0, a1
; RV64I-NEXT: and a0, a0, a2
; RV64I-NEXT: lui a1, %hi(.LCPI10_3)
; RV64I-NEXT: ld a1, %lo(.LCPI10_3)(a1)
; RV64I-NEXT: call __muldi3@plt
; RV64I-NEXT: srli a0, a0, 56
; RV64I-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
; RV64I-NEXT: addi sp, sp, 16
; RV64I-NEXT: ret
; RV64I-NEXT: .LBB10_2:
; RV64I-NEXT: li a0, 64
; RV64I-NEXT: ret
;
; RV64ZBB-LABEL: cttz_i64:
; RV64ZBB: # %bb.0:
; RV64ZBB-NEXT: ctz a0, a0
; RV64ZBB-NEXT: ret
%1 = call i64 @llvm.cttz.i64(i64 %a, i1 false)
ret i64 %1
}
declare i32 @llvm.ctpop.i32(i32)
define signext i32 @ctpop_i32(i32 signext %a) nounwind {
; RV64I-LABEL: ctpop_i32:
; RV64I: # %bb.0:
; RV64I-NEXT: addi sp, sp, -16
; RV64I-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
; RV64I-NEXT: srli a1, a0, 1
; RV64I-NEXT: lui a2, 349525
; RV64I-NEXT: addiw a2, a2, 1365
; RV64I-NEXT: and a1, a1, a2
; RV64I-NEXT: subw a0, a0, a1
; RV64I-NEXT: lui a1, 209715
; RV64I-NEXT: addiw a1, a1, 819
; RV64I-NEXT: and a2, a0, a1
; RV64I-NEXT: srli a0, a0, 2
; RV64I-NEXT: and a0, a0, a1
; RV64I-NEXT: add a0, a2, a0
; RV64I-NEXT: srli a1, a0, 4
; RV64I-NEXT: add a0, a0, a1
; RV64I-NEXT: lui a1, 61681
; RV64I-NEXT: addiw a1, a1, -241
; RV64I-NEXT: and a0, a0, a1
; RV64I-NEXT: lui a1, 4112
; RV64I-NEXT: addiw a1, a1, 257
; RV64I-NEXT: call __muldi3@plt
; RV64I-NEXT: srliw a0, a0, 24
; RV64I-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
; RV64I-NEXT: addi sp, sp, 16
; RV64I-NEXT: ret
;
; RV64ZBB-LABEL: ctpop_i32:
; RV64ZBB: # %bb.0:
; RV64ZBB-NEXT: cpopw a0, a0
; RV64ZBB-NEXT: ret
%1 = call i32 @llvm.ctpop.i32(i32 %a)
ret i32 %1
}
define signext i32 @ctpop_i32_load(i32* %p) nounwind {
; RV64I-LABEL: ctpop_i32_load:
; RV64I: # %bb.0:
; RV64I-NEXT: addi sp, sp, -16
; RV64I-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
; RV64I-NEXT: lw a0, 0(a0)
; RV64I-NEXT: srli a1, a0, 1
; RV64I-NEXT: lui a2, 349525
; RV64I-NEXT: addiw a2, a2, 1365
; RV64I-NEXT: and a1, a1, a2
; RV64I-NEXT: subw a0, a0, a1
; RV64I-NEXT: lui a1, 209715
; RV64I-NEXT: addiw a1, a1, 819
; RV64I-NEXT: and a2, a0, a1
; RV64I-NEXT: srli a0, a0, 2
; RV64I-NEXT: and a0, a0, a1
; RV64I-NEXT: add a0, a2, a0
; RV64I-NEXT: srli a1, a0, 4
; RV64I-NEXT: add a0, a0, a1
; RV64I-NEXT: lui a1, 61681
; RV64I-NEXT: addiw a1, a1, -241
; RV64I-NEXT: and a0, a0, a1
; RV64I-NEXT: lui a1, 4112
; RV64I-NEXT: addiw a1, a1, 257
; RV64I-NEXT: call __muldi3@plt
; RV64I-NEXT: srliw a0, a0, 24
; RV64I-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
; RV64I-NEXT: addi sp, sp, 16
; RV64I-NEXT: ret
;
; RV64ZBB-LABEL: ctpop_i32_load:
; RV64ZBB: # %bb.0:
; RV64ZBB-NEXT: lwu a0, 0(a0)
; RV64ZBB-NEXT: cpopw a0, a0
; RV64ZBB-NEXT: ret
%a = load i32, i32* %p
%1 = call i32 @llvm.ctpop.i32(i32 %a)
ret i32 %1
}
declare i64 @llvm.ctpop.i64(i64)
define i64 @ctpop_i64(i64 %a) nounwind {
; RV64I-LABEL: ctpop_i64:
; RV64I: # %bb.0:
; RV64I-NEXT: addi sp, sp, -16
; RV64I-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
; RV64I-NEXT: lui a1, %hi(.LCPI13_0)
; RV64I-NEXT: ld a1, %lo(.LCPI13_0)(a1)
; RV64I-NEXT: lui a2, %hi(.LCPI13_1)
; RV64I-NEXT: ld a2, %lo(.LCPI13_1)(a2)
; RV64I-NEXT: srli a3, a0, 1
; RV64I-NEXT: and a1, a3, a1
; RV64I-NEXT: sub a0, a0, a1
; RV64I-NEXT: and a1, a0, a2
; RV64I-NEXT: srli a0, a0, 2
; RV64I-NEXT: and a0, a0, a2
; RV64I-NEXT: lui a2, %hi(.LCPI13_2)
; RV64I-NEXT: ld a2, %lo(.LCPI13_2)(a2)
; RV64I-NEXT: add a0, a1, a0
; RV64I-NEXT: srli a1, a0, 4
; RV64I-NEXT: add a0, a0, a1
; RV64I-NEXT: and a0, a0, a2
; RV64I-NEXT: lui a1, %hi(.LCPI13_3)
; RV64I-NEXT: ld a1, %lo(.LCPI13_3)(a1)
; RV64I-NEXT: call __muldi3@plt
; RV64I-NEXT: srli a0, a0, 56
; RV64I-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
; RV64I-NEXT: addi sp, sp, 16
; RV64I-NEXT: ret
;
; RV64ZBB-LABEL: ctpop_i64:
; RV64ZBB: # %bb.0:
; RV64ZBB-NEXT: cpop a0, a0
; RV64ZBB-NEXT: ret
%1 = call i64 @llvm.ctpop.i64(i64 %a)
ret i64 %1
}
define signext i32 @sextb_i32(i32 signext %a) nounwind {
; RV64I-LABEL: sextb_i32:
; RV64I: # %bb.0:
; RV64I-NEXT: slli a0, a0, 56
; RV64I-NEXT: srai a0, a0, 56
; RV64I-NEXT: ret
;
; RV64ZBB-LABEL: sextb_i32:
; RV64ZBB: # %bb.0:
; RV64ZBB-NEXT: sext.b a0, a0
; RV64ZBB-NEXT: ret
%shl = shl i32 %a, 24
%shr = ashr exact i32 %shl, 24
ret i32 %shr
}
define i64 @sextb_i64(i64 %a) nounwind {
; RV64I-LABEL: sextb_i64:
; RV64I: # %bb.0:
; RV64I-NEXT: slli a0, a0, 56
; RV64I-NEXT: srai a0, a0, 56
; RV64I-NEXT: ret
;
; RV64ZBB-LABEL: sextb_i64:
; RV64ZBB: # %bb.0:
; RV64ZBB-NEXT: sext.b a0, a0
; RV64ZBB-NEXT: ret
%shl = shl i64 %a, 56
%shr = ashr exact i64 %shl, 56
ret i64 %shr
}
define signext i32 @sexth_i32(i32 signext %a) nounwind {
; RV64I-LABEL: sexth_i32:
; RV64I: # %bb.0:
; RV64I-NEXT: slli a0, a0, 48
; RV64I-NEXT: srai a0, a0, 48
; RV64I-NEXT: ret
;
; RV64ZBB-LABEL: sexth_i32:
; RV64ZBB: # %bb.0:
; RV64ZBB-NEXT: sext.h a0, a0
; RV64ZBB-NEXT: ret
%shl = shl i32 %a, 16
%shr = ashr exact i32 %shl, 16
ret i32 %shr
}
define i64 @sexth_i64(i64 %a) nounwind {
; RV64I-LABEL: sexth_i64:
; RV64I: # %bb.0:
; RV64I-NEXT: slli a0, a0, 48
; RV64I-NEXT: srai a0, a0, 48
; RV64I-NEXT: ret
;
; RV64ZBB-LABEL: sexth_i64:
; RV64ZBB: # %bb.0:
; RV64ZBB-NEXT: sext.h a0, a0
; RV64ZBB-NEXT: ret
%shl = shl i64 %a, 48
%shr = ashr exact i64 %shl, 48
ret i64 %shr
}
define signext i32 @min_i32(i32 signext %a, i32 signext %b) nounwind {
; RV64I-LABEL: min_i32:
; RV64I: # %bb.0:
; RV64I-NEXT: blt a0, a1, .LBB18_2
; RV64I-NEXT: # %bb.1:
; RV64I-NEXT: mv a0, a1
; RV64I-NEXT: .LBB18_2:
; RV64I-NEXT: ret
;
; RV64ZBB-LABEL: min_i32:
; RV64ZBB: # %bb.0:
; RV64ZBB-NEXT: min a0, a0, a1
; RV64ZBB-NEXT: ret
%cmp = icmp slt i32 %a, %b
%cond = select i1 %cmp, i32 %a, i32 %b
ret i32 %cond
}
define i64 @min_i64(i64 %a, i64 %b) nounwind {
; RV64I-LABEL: min_i64:
; RV64I: # %bb.0:
; RV64I-NEXT: blt a0, a1, .LBB19_2
; RV64I-NEXT: # %bb.1:
; RV64I-NEXT: mv a0, a1
; RV64I-NEXT: .LBB19_2:
; RV64I-NEXT: ret
;
; RV64ZBB-LABEL: min_i64:
; RV64ZBB: # %bb.0:
; RV64ZBB-NEXT: min a0, a0, a1
; RV64ZBB-NEXT: ret
%cmp = icmp slt i64 %a, %b
%cond = select i1 %cmp, i64 %a, i64 %b
ret i64 %cond
}
define signext i32 @max_i32(i32 signext %a, i32 signext %b) nounwind {
; RV64I-LABEL: max_i32:
; RV64I: # %bb.0:
; RV64I-NEXT: blt a1, a0, .LBB20_2
; RV64I-NEXT: # %bb.1:
; RV64I-NEXT: mv a0, a1
; RV64I-NEXT: .LBB20_2:
; RV64I-NEXT: ret
;
; RV64ZBB-LABEL: max_i32:
; RV64ZBB: # %bb.0:
; RV64ZBB-NEXT: max a0, a0, a1
; RV64ZBB-NEXT: ret
%cmp = icmp sgt i32 %a, %b
%cond = select i1 %cmp, i32 %a, i32 %b
ret i32 %cond
}
define i64 @max_i64(i64 %a, i64 %b) nounwind {
; RV64I-LABEL: max_i64:
; RV64I: # %bb.0:
; RV64I-NEXT: blt a1, a0, .LBB21_2
; RV64I-NEXT: # %bb.1:
; RV64I-NEXT: mv a0, a1
; RV64I-NEXT: .LBB21_2:
; RV64I-NEXT: ret
;
; RV64ZBB-LABEL: max_i64:
; RV64ZBB: # %bb.0:
; RV64ZBB-NEXT: max a0, a0, a1
; RV64ZBB-NEXT: ret
%cmp = icmp sgt i64 %a, %b
%cond = select i1 %cmp, i64 %a, i64 %b
ret i64 %cond
}
define signext i32 @minu_i32(i32 signext %a, i32 signext %b) nounwind {
; RV64I-LABEL: minu_i32:
; RV64I: # %bb.0:
; RV64I-NEXT: bltu a0, a1, .LBB22_2
; RV64I-NEXT: # %bb.1:
; RV64I-NEXT: mv a0, a1
; RV64I-NEXT: .LBB22_2:
; RV64I-NEXT: ret
;
; RV64ZBB-LABEL: minu_i32:
; RV64ZBB: # %bb.0:
; RV64ZBB-NEXT: minu a0, a0, a1
; RV64ZBB-NEXT: ret
%cmp = icmp ult i32 %a, %b
%cond = select i1 %cmp, i32 %a, i32 %b
ret i32 %cond
}
define i64 @minu_i64(i64 %a, i64 %b) nounwind {
; RV64I-LABEL: minu_i64:
; RV64I: # %bb.0:
; RV64I-NEXT: bltu a0, a1, .LBB23_2
; RV64I-NEXT: # %bb.1:
; RV64I-NEXT: mv a0, a1
; RV64I-NEXT: .LBB23_2:
; RV64I-NEXT: ret
;
; RV64ZBB-LABEL: minu_i64:
; RV64ZBB: # %bb.0:
; RV64ZBB-NEXT: minu a0, a0, a1
; RV64ZBB-NEXT: ret
%cmp = icmp ult i64 %a, %b
%cond = select i1 %cmp, i64 %a, i64 %b
ret i64 %cond
}
define signext i32 @maxu_i32(i32 signext %a, i32 signext %b) nounwind {
; RV64I-LABEL: maxu_i32:
; RV64I: # %bb.0:
; RV64I-NEXT: bltu a1, a0, .LBB24_2
; RV64I-NEXT: # %bb.1:
; RV64I-NEXT: mv a0, a1
; RV64I-NEXT: .LBB24_2:
; RV64I-NEXT: ret
;
; RV64ZBB-LABEL: maxu_i32:
; RV64ZBB: # %bb.0:
; RV64ZBB-NEXT: maxu a0, a0, a1
; RV64ZBB-NEXT: ret
%cmp = icmp ugt i32 %a, %b
%cond = select i1 %cmp, i32 %a, i32 %b
ret i32 %cond
}
define i64 @maxu_i64(i64 %a, i64 %b) nounwind {
; RV64I-LABEL: maxu_i64:
; RV64I: # %bb.0:
; RV64I-NEXT: bltu a1, a0, .LBB25_2
; RV64I-NEXT: # %bb.1:
; RV64I-NEXT: mv a0, a1
; RV64I-NEXT: .LBB25_2:
; RV64I-NEXT: ret
;
; RV64ZBB-LABEL: maxu_i64:
; RV64ZBB: # %bb.0:
; RV64ZBB-NEXT: maxu a0, a0, a1
; RV64ZBB-NEXT: ret
%cmp = icmp ugt i64 %a, %b
%cond = select i1 %cmp, i64 %a, i64 %b
ret i64 %cond
}
declare i32 @llvm.abs.i32(i32, i1 immarg)
define i32 @abs_i32(i32 %x) {
; RV64I-LABEL: abs_i32:
; RV64I: # %bb.0:
; RV64I-NEXT: sraiw a1, a0, 31
; RV64I-NEXT: xor a0, a0, a1
; RV64I-NEXT: subw a0, a0, a1
; RV64I-NEXT: ret
;
; RV64ZBB-LABEL: abs_i32:
; RV64ZBB: # %bb.0:
; RV64ZBB-NEXT: sext.w a0, a0
; RV64ZBB-NEXT: neg a1, a0
; RV64ZBB-NEXT: max a0, a0, a1
; RV64ZBB-NEXT: ret
%abs = tail call i32 @llvm.abs.i32(i32 %x, i1 true)
ret i32 %abs
}
define signext i32 @abs_i32_sext(i32 signext %x) {
; RV64I-LABEL: abs_i32_sext:
; RV64I: # %bb.0:
; RV64I-NEXT: sraiw a1, a0, 31
; RV64I-NEXT: xor a0, a0, a1
; RV64I-NEXT: subw a0, a0, a1
; RV64I-NEXT: ret
;
; RV64ZBB-LABEL: abs_i32_sext:
; RV64ZBB: # %bb.0:
; RV64ZBB-NEXT: negw a1, a0
; RV64ZBB-NEXT: max a0, a0, a1
; RV64ZBB-NEXT: ret
%abs = tail call i32 @llvm.abs.i32(i32 %x, i1 true)
ret i32 %abs
}
declare i64 @llvm.abs.i64(i64, i1 immarg)
define i64 @abs_i64(i64 %x) {
; RV64I-LABEL: abs_i64:
; RV64I: # %bb.0:
; RV64I-NEXT: srai a1, a0, 63
; RV64I-NEXT: xor a0, a0, a1
; RV64I-NEXT: sub a0, a0, a1
; RV64I-NEXT: ret
;
; RV64ZBB-LABEL: abs_i64:
; RV64ZBB: # %bb.0:
; RV64ZBB-NEXT: neg a1, a0
; RV64ZBB-NEXT: max a0, a0, a1
; RV64ZBB-NEXT: ret
%abs = tail call i64 @llvm.abs.i64(i64 %x, i1 true)
ret i64 %abs
}
define i32 @zexth_i32(i32 %a) nounwind {
; RV64I-LABEL: zexth_i32:
; RV64I: # %bb.0:
; RV64I-NEXT: slli a0, a0, 48
; RV64I-NEXT: srli a0, a0, 48
; RV64I-NEXT: ret
;
; RV64ZBB-LABEL: zexth_i32:
; RV64ZBB: # %bb.0:
; RV64ZBB-NEXT: zext.h a0, a0
; RV64ZBB-NEXT: ret
%and = and i32 %a, 65535
ret i32 %and
}
define i64 @zexth_i64(i64 %a) nounwind {
; RV64I-LABEL: zexth_i64:
; RV64I: # %bb.0:
; RV64I-NEXT: slli a0, a0, 48
; RV64I-NEXT: srli a0, a0, 48
; RV64I-NEXT: ret
;
; RV64ZBB-LABEL: zexth_i64:
; RV64ZBB: # %bb.0:
; RV64ZBB-NEXT: zext.h a0, a0
; RV64ZBB-NEXT: ret
%and = and i64 %a, 65535
ret i64 %and
}
declare i32 @llvm.bswap.i32(i32)
define signext i32 @bswap_i32(i32 signext %a) nounwind {
; RV64I-LABEL: bswap_i32:
; RV64I: # %bb.0:
; RV64I-NEXT: srliw a1, a0, 8
; RV64I-NEXT: lui a2, 16
; RV64I-NEXT: addiw a2, a2, -256
; RV64I-NEXT: and a1, a1, a2
; RV64I-NEXT: srliw a2, a0, 24
; RV64I-NEXT: or a1, a1, a2
; RV64I-NEXT: slli a2, a0, 8
; RV64I-NEXT: lui a3, 4080
; RV64I-NEXT: and a2, a2, a3
; RV64I-NEXT: slliw a0, a0, 24
; RV64I-NEXT: or a0, a0, a2
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: ret
;
; RV64ZBB-LABEL: bswap_i32:
; RV64ZBB: # %bb.0:
; RV64ZBB-NEXT: rev8 a0, a0
; RV64ZBB-NEXT: srai a0, a0, 32
; RV64ZBB-NEXT: ret
%1 = tail call i32 @llvm.bswap.i32(i32 %a)
ret i32 %1
}
; Similar to bswap_i32 but the result is not sign extended.
define void @bswap_i32_nosext(i32 signext %a, i32* %x) nounwind {
; RV64I-LABEL: bswap_i32_nosext:
; RV64I: # %bb.0:
; RV64I-NEXT: srliw a2, a0, 8
; RV64I-NEXT: lui a3, 16
; RV64I-NEXT: addiw a3, a3, -256
; RV64I-NEXT: and a2, a2, a3
; RV64I-NEXT: srliw a3, a0, 24
; RV64I-NEXT: or a2, a2, a3
; RV64I-NEXT: slli a3, a0, 8
; RV64I-NEXT: lui a4, 4080
; RV64I-NEXT: and a3, a3, a4
; RV64I-NEXT: slli a0, a0, 24
; RV64I-NEXT: or a0, a0, a3
; RV64I-NEXT: or a0, a0, a2
; RV64I-NEXT: sw a0, 0(a1)
; RV64I-NEXT: ret
;
; RV64ZBB-LABEL: bswap_i32_nosext:
; RV64ZBB: # %bb.0:
; RV64ZBB-NEXT: rev8 a0, a0
; RV64ZBB-NEXT: srli a0, a0, 32
; RV64ZBB-NEXT: sw a0, 0(a1)
; RV64ZBB-NEXT: ret
%1 = tail call i32 @llvm.bswap.i32(i32 %a)
store i32 %1, i32* %x
ret void
}
declare i64 @llvm.bswap.i64(i64)
define i64 @bswap_i64(i64 %a) {
; RV64I-LABEL: bswap_i64:
; RV64I: # %bb.0:
; RV64I-NEXT: srli a1, a0, 24
; RV64I-NEXT: lui a2, 4080
; RV64I-NEXT: and a1, a1, a2
; RV64I-NEXT: srli a2, a0, 8
; RV64I-NEXT: li a3, 255
; RV64I-NEXT: slli a4, a3, 24
; RV64I-NEXT: and a2, a2, a4
; RV64I-NEXT: or a1, a2, a1
; RV64I-NEXT: srli a2, a0, 40
; RV64I-NEXT: lui a4, 16
; RV64I-NEXT: addiw a4, a4, -256
; RV64I-NEXT: and a2, a2, a4
; RV64I-NEXT: srli a4, a0, 56
; RV64I-NEXT: or a2, a2, a4
; RV64I-NEXT: or a1, a1, a2
; RV64I-NEXT: slli a2, a0, 24
; RV64I-NEXT: slli a4, a3, 40
; RV64I-NEXT: and a2, a2, a4
; RV64I-NEXT: srliw a4, a0, 24
; RV64I-NEXT: slli a4, a4, 32
; RV64I-NEXT: or a2, a2, a4
; RV64I-NEXT: slli a4, a0, 40
; RV64I-NEXT: slli a3, a3, 48
; RV64I-NEXT: and a3, a4, a3
; RV64I-NEXT: slli a0, a0, 56
; RV64I-NEXT: or a0, a0, a3
; RV64I-NEXT: or a0, a0, a2
; RV64I-NEXT: or a0, a0, a1
; RV64I-NEXT: ret
;
; RV64ZBB-LABEL: bswap_i64:
; RV64ZBB: # %bb.0:
; RV64ZBB-NEXT: rev8 a0, a0
; RV64ZBB-NEXT: ret
%1 = call i64 @llvm.bswap.i64(i64 %a)
ret i64 %1
}