; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py ; RUN: llc -mtriple=riscv32 -mattr=+experimental-p -verify-machineinstrs < %s \ ; RUN: | FileCheck %s declare i32 @llvm.ctlz.i32(i32, i1) define i32 @ctlz_i32(i32 %a) nounwind { ; CHECK-LABEL: ctlz_i32: ; CHECK: # %bb.0: ; CHECK-NEXT: clz a0, a0 ; CHECK-NEXT: ret %1 = call i32 @llvm.ctlz.i32(i32 %a, i1 false) ret i32 %1 } declare i64 @llvm.ctlz.i64(i64, i1) define i64 @ctlz_i64(i64 %a) nounwind { ; CHECK-LABEL: ctlz_i64: ; CHECK: # %bb.0: ; CHECK-NEXT: bnez a1, .LBB1_2 ; CHECK-NEXT: # %bb.1: ; CHECK-NEXT: clz a0, a0 ; CHECK-NEXT: addi a0, a0, 32 ; CHECK-NEXT: li a1, 0 ; CHECK-NEXT: ret ; CHECK-NEXT: .LBB1_2: ; CHECK-NEXT: clz a0, a1 ; CHECK-NEXT: li a1, 0 ; CHECK-NEXT: ret %1 = call i64 @llvm.ctlz.i64(i64 %a, i1 false) ret i64 %1 } declare i32 @llvm.cttz.i32(i32, i1) define i32 @cttz_i32(i32 %a) nounwind { ; CHECK-LABEL: cttz_i32: ; CHECK: # %bb.0: ; CHECK-NEXT: beqz a0, .LBB2_2 ; CHECK-NEXT: # %bb.1: # %cond.false ; CHECK-NEXT: addi a1, a0, -1 ; CHECK-NEXT: not a0, a0 ; CHECK-NEXT: and a0, a0, a1 ; CHECK-NEXT: clz a0, a0 ; CHECK-NEXT: li a1, 32 ; CHECK-NEXT: sub a0, a1, a0 ; CHECK-NEXT: ret ; CHECK-NEXT: .LBB2_2: ; CHECK-NEXT: li a0, 32 ; CHECK-NEXT: ret %1 = call i32 @llvm.cttz.i32(i32 %a, i1 false) ret i32 %1 } declare i64 @llvm.cttz.i64(i64, i1) define i64 @cttz_i64(i64 %a) nounwind { ; CHECK-LABEL: cttz_i64: ; CHECK: # %bb.0: ; CHECK-NEXT: or a2, a0, a1 ; CHECK-NEXT: beqz a2, .LBB3_3 ; CHECK-NEXT: # %bb.1: # %cond.false ; CHECK-NEXT: bnez a0, .LBB3_4 ; CHECK-NEXT: # %bb.2: # %cond.false ; CHECK-NEXT: addi a0, a1, -1 ; CHECK-NEXT: not a1, a1 ; CHECK-NEXT: and a0, a1, a0 ; CHECK-NEXT: clz a0, a0 ; CHECK-NEXT: li a1, 64 ; CHECK-NEXT: j .LBB3_5 ; CHECK-NEXT: .LBB3_3: ; CHECK-NEXT: li a1, 0 ; CHECK-NEXT: li a0, 64 ; CHECK-NEXT: ret ; CHECK-NEXT: .LBB3_4: ; CHECK-NEXT: addi a1, a0, -1 ; CHECK-NEXT: not a0, a0 ; CHECK-NEXT: and a0, a0, a1 ; CHECK-NEXT: clz a0, a0 ; CHECK-NEXT: li a1, 32 ; CHECK-NEXT: .LBB3_5: # %cond.false ; CHECK-NEXT: sub a0, a1, a0 ; CHECK-NEXT: li a1, 0 ; CHECK-NEXT: ret %1 = call i64 @llvm.cttz.i64(i64 %a, i1 false) ret i64 %1 } define i32 @sextb_i32(i32 %a) nounwind { ; CHECK-LABEL: sextb_i32: ; CHECK: # %bb.0: ; CHECK-NEXT: sext.b a0, a0 ; CHECK-NEXT: ret %shl = shl i32 %a, 24 %shr = ashr exact i32 %shl, 24 ret i32 %shr } define i64 @sextb_i64(i64 %a) nounwind { ; CHECK-LABEL: sextb_i64: ; CHECK: # %bb.0: ; CHECK-NEXT: sext.b a0, a0 ; CHECK-NEXT: srai a1, a0, 31 ; CHECK-NEXT: ret %shl = shl i64 %a, 56 %shr = ashr exact i64 %shl, 56 ret i64 %shr } define i32 @sexth_i32(i32 %a) nounwind { ; CHECK-LABEL: sexth_i32: ; CHECK: # %bb.0: ; CHECK-NEXT: sext.h a0, a0 ; CHECK-NEXT: ret %shl = shl i32 %a, 16 %shr = ashr exact i32 %shl, 16 ret i32 %shr } define i64 @sexth_i64(i64 %a) nounwind { ; CHECK-LABEL: sexth_i64: ; CHECK: # %bb.0: ; CHECK-NEXT: sext.h a0, a0 ; CHECK-NEXT: srai a1, a0, 31 ; CHECK-NEXT: ret %shl = shl i64 %a, 48 %shr = ashr exact i64 %shl, 48 ret i64 %shr } define i32 @min_i32(i32 %a, i32 %b) nounwind { ; CHECK-LABEL: min_i32: ; CHECK: # %bb.0: ; CHECK-NEXT: min a0, a0, a1 ; CHECK-NEXT: ret %cmp = icmp slt i32 %a, %b %cond = select i1 %cmp, i32 %a, i32 %b ret i32 %cond } ; As we are not matching directly i64 code patterns on RV32 some i64 patterns ; don't have yet any matching bit manipulation instructions on RV32. ; This test is presented here in case future expansions of the Bitmanip ; extensions introduce instructions suitable for this pattern. define i64 @min_i64(i64 %a, i64 %b) nounwind { ; CHECK-LABEL: min_i64: ; CHECK: # %bb.0: ; CHECK-NEXT: beq a1, a3, .LBB9_2 ; CHECK-NEXT: # %bb.1: ; CHECK-NEXT: slt a4, a1, a3 ; CHECK-NEXT: beqz a4, .LBB9_3 ; CHECK-NEXT: j .LBB9_4 ; CHECK-NEXT: .LBB9_2: ; CHECK-NEXT: sltu a4, a0, a2 ; CHECK-NEXT: bnez a4, .LBB9_4 ; CHECK-NEXT: .LBB9_3: ; CHECK-NEXT: mv a0, a2 ; CHECK-NEXT: mv a1, a3 ; CHECK-NEXT: .LBB9_4: ; CHECK-NEXT: ret %cmp = icmp slt i64 %a, %b %cond = select i1 %cmp, i64 %a, i64 %b ret i64 %cond } define i32 @max_i32(i32 %a, i32 %b) nounwind { ; CHECK-LABEL: max_i32: ; CHECK: # %bb.0: ; CHECK-NEXT: max a0, a0, a1 ; CHECK-NEXT: ret %cmp = icmp sgt i32 %a, %b %cond = select i1 %cmp, i32 %a, i32 %b ret i32 %cond } ; As we are not matching directly i64 code patterns on RV32 some i64 patterns ; don't have yet any matching bit manipulation instructions on RV32. ; This test is presented here in case future expansions of the Bitmanip ; extensions introduce instructions suitable for this pattern. define i64 @max_i64(i64 %a, i64 %b) nounwind { ; CHECK-LABEL: max_i64: ; CHECK: # %bb.0: ; CHECK-NEXT: beq a1, a3, .LBB11_2 ; CHECK-NEXT: # %bb.1: ; CHECK-NEXT: slt a4, a3, a1 ; CHECK-NEXT: beqz a4, .LBB11_3 ; CHECK-NEXT: j .LBB11_4 ; CHECK-NEXT: .LBB11_2: ; CHECK-NEXT: sltu a4, a2, a0 ; CHECK-NEXT: bnez a4, .LBB11_4 ; CHECK-NEXT: .LBB11_3: ; CHECK-NEXT: mv a0, a2 ; CHECK-NEXT: mv a1, a3 ; CHECK-NEXT: .LBB11_4: ; CHECK-NEXT: ret %cmp = icmp sgt i64 %a, %b %cond = select i1 %cmp, i64 %a, i64 %b ret i64 %cond } define i32 @minu_i32(i32 %a, i32 %b) nounwind { ; CHECK-LABEL: minu_i32: ; CHECK: # %bb.0: ; CHECK-NEXT: minu a0, a0, a1 ; CHECK-NEXT: ret %cmp = icmp ult i32 %a, %b %cond = select i1 %cmp, i32 %a, i32 %b ret i32 %cond } ; As we are not matching directly i64 code patterns on RV32 some i64 patterns ; don't have yet any matching bit manipulation instructions on RV32. ; This test is presented here in case future expansions of the Bitmanip ; extensions introduce instructions suitable for this pattern. define i64 @minu_i64(i64 %a, i64 %b) nounwind { ; CHECK-LABEL: minu_i64: ; CHECK: # %bb.0: ; CHECK-NEXT: beq a1, a3, .LBB13_2 ; CHECK-NEXT: # %bb.1: ; CHECK-NEXT: sltu a4, a1, a3 ; CHECK-NEXT: beqz a4, .LBB13_3 ; CHECK-NEXT: j .LBB13_4 ; CHECK-NEXT: .LBB13_2: ; CHECK-NEXT: sltu a4, a0, a2 ; CHECK-NEXT: bnez a4, .LBB13_4 ; CHECK-NEXT: .LBB13_3: ; CHECK-NEXT: mv a0, a2 ; CHECK-NEXT: mv a1, a3 ; CHECK-NEXT: .LBB13_4: ; CHECK-NEXT: ret %cmp = icmp ult i64 %a, %b %cond = select i1 %cmp, i64 %a, i64 %b ret i64 %cond } define i32 @maxu_i32(i32 %a, i32 %b) nounwind { ; CHECK-LABEL: maxu_i32: ; CHECK: # %bb.0: ; CHECK-NEXT: maxu a0, a0, a1 ; CHECK-NEXT: ret %cmp = icmp ugt i32 %a, %b %cond = select i1 %cmp, i32 %a, i32 %b ret i32 %cond } ; As we are not matching directly i64 code patterns on RV32 some i64 patterns ; don't have yet any matching bit manipulation instructions on RV32. ; This test is presented here in case future expansions of the Bitmanip ; extensions introduce instructions suitable for this pattern. define i64 @maxu_i64(i64 %a, i64 %b) nounwind { ; CHECK-LABEL: maxu_i64: ; CHECK: # %bb.0: ; CHECK-NEXT: beq a1, a3, .LBB15_2 ; CHECK-NEXT: # %bb.1: ; CHECK-NEXT: sltu a4, a3, a1 ; CHECK-NEXT: beqz a4, .LBB15_3 ; CHECK-NEXT: j .LBB15_4 ; CHECK-NEXT: .LBB15_2: ; CHECK-NEXT: sltu a4, a2, a0 ; CHECK-NEXT: bnez a4, .LBB15_4 ; CHECK-NEXT: .LBB15_3: ; CHECK-NEXT: mv a0, a2 ; CHECK-NEXT: mv a1, a3 ; CHECK-NEXT: .LBB15_4: ; CHECK-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) { ; CHECK-LABEL: abs_i32: ; CHECK: # %bb.0: ; CHECK-NEXT: abs a0, a0 ; CHECK-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) { ; CHECK-LABEL: abs_i64: ; CHECK: # %bb.0: ; CHECK-NEXT: bgez a1, .LBB17_2 ; CHECK-NEXT: # %bb.1: ; CHECK-NEXT: snez a2, a0 ; CHECK-NEXT: neg a0, a0 ; CHECK-NEXT: neg a1, a1 ; CHECK-NEXT: sub a1, a1, a2 ; CHECK-NEXT: .LBB17_2: ; CHECK-NEXT: ret %abs = tail call i64 @llvm.abs.i64(i64 %x, i1 true) ret i64 %abs } define i32 @zexth_i32(i32 %a) nounwind { ; CHECK-LABEL: zexth_i32: ; CHECK: # %bb.0: ; CHECK-NEXT: slli a0, a0, 16 ; CHECK-NEXT: srli a0, a0, 16 ; CHECK-NEXT: ret %and = and i32 %a, 65535 ret i32 %and } define i64 @zexth_i64(i64 %a) nounwind { ; CHECK-LABEL: zexth_i64: ; CHECK: # %bb.0: ; CHECK-NEXT: slli a0, a0, 16 ; CHECK-NEXT: srli a0, a0, 16 ; CHECK-NEXT: li a1, 0 ; CHECK-NEXT: ret %and = and i64 %a, 65535 ret i64 %and } declare i32 @llvm.bswap.i32(i32) define i32 @bswap_i32(i32 %a) nounwind { ; CHECK-LABEL: bswap_i32: ; CHECK: # %bb.0: ; CHECK-NEXT: rev8 a0, a0 ; CHECK-NEXT: ret %1 = tail call i32 @llvm.bswap.i32(i32 %a) ret i32 %1 } declare i64 @llvm.bswap.i64(i64) define i64 @bswap_i64(i64 %a) { ; CHECK-LABEL: bswap_i64: ; CHECK: # %bb.0: ; CHECK-NEXT: rev8 a2, a1 ; CHECK-NEXT: rev8 a1, a0 ; CHECK-NEXT: mv a0, a2 ; CHECK-NEXT: ret %1 = call i64 @llvm.bswap.i64(i64 %a) ret i64 %1 } define i32 @srai_slli(i16 signext %0) { ; CHECK-LABEL: srai_slli: ; CHECK: # %bb.0: ; CHECK-NEXT: slli a0, a0, 25 ; CHECK-NEXT: srai a0, a0, 31 ; CHECK-NEXT: ret %2 = shl i16 %0, 9 %sext = ashr i16 %2, 15 %3 = sext i16 %sext to i32 ret i32 %3 } define i32 @srai_slli2(i16 signext %0) { ; CHECK-LABEL: srai_slli2: ; CHECK: # %bb.0: ; CHECK-NEXT: slli a0, a0, 25 ; CHECK-NEXT: srai a0, a0, 30 ; CHECK-NEXT: ret %2 = shl i16 %0, 9 %sext = ashr i16 %2, 14 %3 = sext i16 %sext to i32 ret i32 %3 } define i8 @sub_if_uge_i8(i8 %x, i8 %y) { ; CHECK-LABEL: sub_if_uge_i8: ; CHECK: # %bb.0: ; CHECK-NEXT: zext.b a2, a0 ; CHECK-NEXT: sub a0, a0, a1 ; CHECK-NEXT: zext.b a0, a0 ; CHECK-NEXT: minu a0, a2, a0 ; CHECK-NEXT: ret %cmp = icmp ult i8 %x, %y %select = select i1 %cmp, i8 0, i8 %y %sub = sub nuw i8 %x, %select ret i8 %sub } define i16 @sub_if_uge_i16(i16 %x, i16 %y) { ; CHECK-LABEL: sub_if_uge_i16: ; CHECK: # %bb.0: ; CHECK-NEXT: lui a2, 16 ; CHECK-NEXT: sub a1, a0, a1 ; CHECK-NEXT: addi a2, a2, -1 ; CHECK-NEXT: and a0, a0, a2 ; CHECK-NEXT: and a1, a1, a2 ; CHECK-NEXT: minu a0, a0, a1 ; CHECK-NEXT: ret %cmp = icmp ult i16 %x, %y %select = select i1 %cmp, i16 0, i16 %y %sub = sub nuw i16 %x, %select ret i16 %sub } define i32 @sub_if_uge_i32(i32 %x, i32 %y) { ; CHECK-LABEL: sub_if_uge_i32: ; CHECK: # %bb.0: ; CHECK-NEXT: sub a1, a0, a1 ; CHECK-NEXT: minu a0, a0, a1 ; CHECK-NEXT: ret %cmp = icmp ult i32 %x, %y %select = select i1 %cmp, i32 0, i32 %y %sub = sub nuw i32 %x, %select ret i32 %sub } define i64 @sub_if_uge_i64(i64 %x, i64 %y) { ; CHECK-LABEL: sub_if_uge_i64: ; CHECK: # %bb.0: ; CHECK-NEXT: beq a1, a3, .LBB27_2 ; CHECK-NEXT: # %bb.1: ; CHECK-NEXT: sltu a4, a1, a3 ; CHECK-NEXT: j .LBB27_3 ; CHECK-NEXT: .LBB27_2: ; CHECK-NEXT: sltu a4, a0, a2 ; CHECK-NEXT: .LBB27_3: ; CHECK-NEXT: addi a4, a4, -1 ; CHECK-NEXT: and a3, a4, a3 ; CHECK-NEXT: and a2, a4, a2 ; CHECK-NEXT: sltu a4, a0, a2 ; CHECK-NEXT: sub a1, a1, a3 ; CHECK-NEXT: sub a1, a1, a4 ; CHECK-NEXT: sub a0, a0, a2 ; CHECK-NEXT: ret %cmp = icmp ult i64 %x, %y %select = select i1 %cmp, i64 0, i64 %y %sub = sub nuw i64 %x, %select ret i64 %sub } define i128 @sub_if_uge_i128(i128 %x, i128 %y) { ; CHECK-LABEL: sub_if_uge_i128: ; CHECK: # %bb.0: ; CHECK-NEXT: lw a3, 4(a1) ; CHECK-NEXT: lw a4, 8(a1) ; CHECK-NEXT: lw a5, 12(a1) ; CHECK-NEXT: lw a6, 4(a2) ; CHECK-NEXT: lw t0, 12(a2) ; CHECK-NEXT: lw a7, 8(a2) ; CHECK-NEXT: beq a5, t0, .LBB28_2 ; CHECK-NEXT: # %bb.1: ; CHECK-NEXT: sltu t1, a5, t0 ; CHECK-NEXT: j .LBB28_3 ; CHECK-NEXT: .LBB28_2: ; CHECK-NEXT: sltu t1, a4, a7 ; CHECK-NEXT: .LBB28_3: ; CHECK-NEXT: lw a1, 0(a1) ; CHECK-NEXT: lw a2, 0(a2) ; CHECK-NEXT: beq a3, a6, .LBB28_5 ; CHECK-NEXT: # %bb.4: ; CHECK-NEXT: sltu t2, a3, a6 ; CHECK-NEXT: j .LBB28_6 ; CHECK-NEXT: .LBB28_5: ; CHECK-NEXT: sltu t2, a1, a2 ; CHECK-NEXT: .LBB28_6: ; CHECK-NEXT: xor t3, a5, t0 ; CHECK-NEXT: xor t4, a4, a7 ; CHECK-NEXT: or t3, t4, t3 ; CHECK-NEXT: beqz t3, .LBB28_8 ; CHECK-NEXT: # %bb.7: ; CHECK-NEXT: mv t2, t1 ; CHECK-NEXT: .LBB28_8: ; CHECK-NEXT: addi t3, t2, -1 ; CHECK-NEXT: and t2, t3, t0 ; CHECK-NEXT: and t0, t3, a2 ; CHECK-NEXT: and t1, t3, a6 ; CHECK-NEXT: sltu a2, a1, t0 ; CHECK-NEXT: and a7, t3, a7 ; CHECK-NEXT: mv a6, a2 ; CHECK-NEXT: beq a3, t1, .LBB28_10 ; CHECK-NEXT: # %bb.9: ; CHECK-NEXT: sltu a6, a3, t1 ; CHECK-NEXT: .LBB28_10: ; CHECK-NEXT: sub t3, a4, a7 ; CHECK-NEXT: sltu a4, a4, a7 ; CHECK-NEXT: sub a5, a5, t2 ; CHECK-NEXT: sub a3, a3, t1 ; CHECK-NEXT: sub a1, a1, t0 ; CHECK-NEXT: sltu a7, t3, a6 ; CHECK-NEXT: sub a5, a5, a4 ; CHECK-NEXT: sub a4, t3, a6 ; CHECK-NEXT: sub a3, a3, a2 ; CHECK-NEXT: sub a2, a5, a7 ; CHECK-NEXT: sw a1, 0(a0) ; CHECK-NEXT: sw a3, 4(a0) ; CHECK-NEXT: sw a4, 8(a0) ; CHECK-NEXT: sw a2, 12(a0) ; CHECK-NEXT: ret %cmp = icmp ult i128 %x, %y %select = select i1 %cmp, i128 0, i128 %y %sub = sub nuw i128 %x, %select ret i128 %sub } define i32 @sub_if_uge_multiuse_select_i32(i32 %x, i32 %y) { ; CHECK-LABEL: sub_if_uge_multiuse_select_i32: ; CHECK: # %bb.0: ; CHECK-NEXT: sltu a2, a0, a1 ; CHECK-NEXT: addi a2, a2, -1 ; CHECK-NEXT: and a1, a2, a1 ; CHECK-NEXT: sub a0, a0, a1 ; CHECK-NEXT: sll a0, a0, a1 ; CHECK-NEXT: ret %cmp = icmp ult i32 %x, %y %select = select i1 %cmp, i32 0, i32 %y %sub = sub nuw i32 %x, %select %shl = shl i32 %sub, %select ret i32 %shl } define i32 @sub_if_uge_multiuse_cmp_i32(i32 %x, i32 %y) { ; CHECK-LABEL: sub_if_uge_multiuse_cmp_i32: ; CHECK: # %bb.0: ; CHECK-NEXT: sub a2, a0, a1 ; CHECK-NEXT: minu a2, a0, a2 ; CHECK-NEXT: bltu a0, a1, .LBB30_2 ; CHECK-NEXT: # %bb.1: ; CHECK-NEXT: li a0, 4 ; CHECK-NEXT: sll a0, a2, a0 ; CHECK-NEXT: ret ; CHECK-NEXT: .LBB30_2: ; CHECK-NEXT: li a0, 2 ; CHECK-NEXT: sll a0, a2, a0 ; CHECK-NEXT: ret %cmp = icmp ult i32 %x, %y %select = select i1 %cmp, i32 0, i32 %y %sub = sub nuw i32 %x, %select %select2 = select i1 %cmp, i32 2, i32 4 %shl = shl i32 %sub, %select2 ret i32 %shl } define i32 @sub_if_uge_multiuse_cmp_store_i32(i32 %x, i32 %y, ptr %z) { ; CHECK-LABEL: sub_if_uge_multiuse_cmp_store_i32: ; CHECK: # %bb.0: ; CHECK-NEXT: sltu a3, a0, a1 ; CHECK-NEXT: sub a1, a0, a1 ; CHECK-NEXT: xori a3, a3, 1 ; CHECK-NEXT: minu a0, a0, a1 ; CHECK-NEXT: sw a3, 0(a2) ; CHECK-NEXT: ret %cmp = icmp uge i32 %x, %y %conv = zext i1 %cmp to i32 store i32 %conv, ptr %z, align 4 %select = select i1 %cmp, i32 %y, i32 0 %sub = sub nuw i32 %x, %select ret i32 %sub } define i8 @sub_if_uge_C_i8(i8 zeroext %x) { ; CHECK-LABEL: sub_if_uge_C_i8: ; CHECK: # %bb.0: ; CHECK-NEXT: addi a1, a0, -13 ; CHECK-NEXT: zext.b a1, a1 ; CHECK-NEXT: minu a0, a1, a0 ; CHECK-NEXT: ret %cmp = icmp ugt i8 %x, 12 %sub = add i8 %x, -13 %conv4 = select i1 %cmp, i8 %sub, i8 %x ret i8 %conv4 } define i16 @sub_if_uge_C_i16(i16 zeroext %x) { ; CHECK-LABEL: sub_if_uge_C_i16: ; CHECK: # %bb.0: ; CHECK-NEXT: addi a1, a0, -251 ; CHECK-NEXT: slli a1, a1, 16 ; CHECK-NEXT: srli a1, a1, 16 ; CHECK-NEXT: minu a0, a1, a0 ; CHECK-NEXT: ret %cmp = icmp ugt i16 %x, 250 %sub = add i16 %x, -251 %conv4 = select i1 %cmp, i16 %sub, i16 %x ret i16 %conv4 } define i32 @sub_if_uge_C_i32(i32 signext %x) { ; CHECK-LABEL: sub_if_uge_C_i32: ; CHECK: # %bb.0: ; CHECK-NEXT: lui a1, 1048560 ; CHECK-NEXT: addi a1, a1, 15 ; CHECK-NEXT: add a1, a0, a1 ; CHECK-NEXT: minu a0, a1, a0 ; CHECK-NEXT: ret %cmp = icmp ugt i32 %x, 65520 %sub = add i32 %x, -65521 %cond = select i1 %cmp, i32 %sub, i32 %x ret i32 %cond } define i64 @sub_if_uge_C_i64(i64 %x) { ; CHECK-LABEL: sub_if_uge_C_i64: ; CHECK: # %bb.0: ; CHECK-NEXT: li a2, 1 ; CHECK-NEXT: beq a1, a2, .LBB35_2 ; CHECK-NEXT: # %bb.1: ; CHECK-NEXT: sltiu a2, a1, 2 ; CHECK-NEXT: xori a2, a2, 1 ; CHECK-NEXT: j .LBB35_3 ; CHECK-NEXT: .LBB35_2: ; CHECK-NEXT: lui a2, 172127 ; CHECK-NEXT: addi a2, a2, 511 ; CHECK-NEXT: sltu a2, a2, a0 ; CHECK-NEXT: .LBB35_3: ; CHECK-NEXT: neg a2, a2 ; CHECK-NEXT: andi a3, a2, -2 ; CHECK-NEXT: add a1, a1, a3 ; CHECK-NEXT: lui a3, 876449 ; CHECK-NEXT: addi a3, a3, -512 ; CHECK-NEXT: and a2, a2, a3 ; CHECK-NEXT: add a2, a0, a2 ; CHECK-NEXT: sltu a0, a2, a0 ; CHECK-NEXT: add a1, a1, a0 ; CHECK-NEXT: mv a0, a2 ; CHECK-NEXT: ret %cmp = icmp ugt i64 %x, 4999999999 %sub = add i64 %x, -5000000000 %cond = select i1 %cmp, i64 %sub, i64 %x ret i64 %cond } define i32 @sub_if_uge_C_multiuse_cmp_i32(i32 signext %x, ptr %z) { ; CHECK-LABEL: sub_if_uge_C_multiuse_cmp_i32: ; CHECK: # %bb.0: ; CHECK-NEXT: lui a2, 16 ; CHECK-NEXT: lui a3, 1048560 ; CHECK-NEXT: addi a2, a2, -16 ; CHECK-NEXT: addi a3, a3, 15 ; CHECK-NEXT: sltu a2, a2, a0 ; CHECK-NEXT: add a3, a0, a3 ; CHECK-NEXT: minu a0, a3, a0 ; CHECK-NEXT: sw a2, 0(a1) ; CHECK-NEXT: ret %cmp = icmp ugt i32 %x, 65520 %conv = zext i1 %cmp to i32 store i32 %conv, ptr %z, align 4 %sub = add i32 %x, -65521 %cond = select i1 %cmp, i32 %sub, i32 %x ret i32 %cond } define i32 @sub_if_uge_C_multiuse_sub_i32(i32 signext %x, ptr %z) { ; CHECK-LABEL: sub_if_uge_C_multiuse_sub_i32: ; CHECK: # %bb.0: ; CHECK-NEXT: lui a2, 1048560 ; CHECK-NEXT: addi a2, a2, 15 ; CHECK-NEXT: add a2, a0, a2 ; CHECK-NEXT: minu a0, a2, a0 ; CHECK-NEXT: sw a2, 0(a1) ; CHECK-NEXT: ret %sub = add i32 %x, -65521 store i32 %sub, ptr %z, align 4 %cmp = icmp ugt i32 %x, 65520 %cond = select i1 %cmp, i32 %sub, i32 %x ret i32 %cond } define i32 @sub_if_uge_C_swapped_i32(i32 %x) { ; CHECK-LABEL: sub_if_uge_C_swapped_i32: ; CHECK: # %bb.0: ; CHECK-NEXT: lui a1, 1048560 ; CHECK-NEXT: addi a1, a1, 15 ; CHECK-NEXT: add a1, a0, a1 ; CHECK-NEXT: minu a0, a0, a1 ; CHECK-NEXT: ret %cmp = icmp ult i32 %x, 65521 %sub = add i32 %x, -65521 %cond = select i1 %cmp, i32 %x, i32 %sub ret i32 %cond } define i7 @sub_if_uge_C_nsw_i7(i7 %a) { ; CHECK-LABEL: sub_if_uge_C_nsw_i7: ; CHECK: # %bb.0: ; CHECK-NEXT: ori a0, a0, 51 ; CHECK-NEXT: andi a1, a0, 127 ; CHECK-NEXT: addi a0, a0, 17 ; CHECK-NEXT: andi a0, a0, 92 ; CHECK-NEXT: minu a0, a0, a1 ; CHECK-NEXT: ret %x = or i7 %a, 51 %c = icmp ugt i7 %x, -18 %add = add nsw i7 %x, 17 %s = select i1 %c, i7 %add, i7 %x ret i7 %s } define i7 @sub_if_uge_C_swapped_nsw_i7(i7 %a) { ; CHECK-LABEL: sub_if_uge_C_swapped_nsw_i7: ; CHECK: # %bb.0: ; CHECK-NEXT: ori a0, a0, 51 ; CHECK-NEXT: andi a1, a0, 127 ; CHECK-NEXT: addi a0, a0, 17 ; CHECK-NEXT: andi a0, a0, 92 ; CHECK-NEXT: minu a0, a1, a0 ; CHECK-NEXT: ret %x = or i7 %a, 51 %c = icmp ult i7 %x, -17 %add = add nsw i7 %x, 17 %s = select i1 %c, i7 %x, i7 %add ret i7 %s }