| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| ; RUN: llc -mtriple=riscv64 -mattr=+experimental-p -verify-machineinstrs < %s \ |
| ; RUN: | FileCheck %s |
| |
| declare i32 @llvm.ctlz.i32(i32, i1) |
| |
| define signext i32 @ctlz_i32(i32 signext %a) nounwind { |
| ; CHECK-LABEL: ctlz_i32: |
| ; CHECK: # %bb.0: |
| ; CHECK-NEXT: clzw a0, a0 |
| ; CHECK-NEXT: ret |
| %1 = call i32 @llvm.ctlz.i32(i32 %a, i1 false) |
| ret i32 %1 |
| } |
| |
| define signext i32 @log2_i32(i32 signext %a) nounwind { |
| ; CHECK-LABEL: log2_i32: |
| ; CHECK: # %bb.0: |
| ; CHECK-NEXT: clzw a0, a0 |
| ; CHECK-NEXT: li a1, 31 |
| ; CHECK-NEXT: sub a0, a1, a0 |
| ; CHECK-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 { |
| ; CHECK-LABEL: log2_ceil_i32: |
| ; CHECK: # %bb.0: |
| ; CHECK-NEXT: addi a0, a0, -1 |
| ; CHECK-NEXT: clzw a0, a0 |
| ; CHECK-NEXT: li a1, 32 |
| ; CHECK-NEXT: sub a0, a1, a0 |
| ; CHECK-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 { |
| ; CHECK-LABEL: findLastSet_i32: |
| ; CHECK: # %bb.0: |
| ; CHECK-NEXT: clzw a1, a0 |
| ; CHECK-NEXT: snez a0, a0 |
| ; CHECK-NEXT: xori a1, a1, 31 |
| ; CHECK-NEXT: addi a0, a0, -1 |
| ; CHECK-NEXT: or a0, a0, a1 |
| ; CHECK-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) { |
| ; CHECK-LABEL: ctlz_lshr_i32: |
| ; CHECK: # %bb.0: |
| ; CHECK-NEXT: srliw a0, a0, 1 |
| ; CHECK-NEXT: clzw a0, a0 |
| ; CHECK-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 { |
| ; CHECK-LABEL: ctlz_i64: |
| ; CHECK: # %bb.0: |
| ; CHECK-NEXT: clz a0, a0 |
| ; CHECK-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 { |
| ; CHECK-LABEL: cttz_i32: |
| ; CHECK: # %bb.0: |
| ; CHECK-NEXT: beqz a0, .LBB6_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: clzw a0, a0 |
| ; CHECK-NEXT: li a1, 32 |
| ; CHECK-NEXT: sub a0, a1, a0 |
| ; CHECK-NEXT: ret |
| ; CHECK-NEXT: .LBB6_2: |
| ; CHECK-NEXT: li a0, 32 |
| ; CHECK-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 { |
| ; CHECK-LABEL: cttz_zero_undef_i32: |
| ; CHECK: # %bb.0: |
| ; CHECK-NEXT: addi a1, a0, -1 |
| ; CHECK-NEXT: not a0, a0 |
| ; CHECK-NEXT: and a0, a0, a1 |
| ; CHECK-NEXT: clzw a0, a0 |
| ; CHECK-NEXT: li a1, 32 |
| ; CHECK-NEXT: sub a0, a1, a0 |
| ; CHECK-NEXT: ret |
| %1 = call i32 @llvm.cttz.i32(i32 %a, i1 true) |
| ret i32 %1 |
| } |
| |
| define signext i32 @findFirstSet_i32(i32 signext %a) nounwind { |
| ; CHECK-LABEL: findFirstSet_i32: |
| ; CHECK: # %bb.0: |
| ; CHECK-NEXT: addi a1, a0, -1 |
| ; CHECK-NEXT: not a2, a0 |
| ; CHECK-NEXT: and a1, a2, a1 |
| ; CHECK-NEXT: li a2, 32 |
| ; CHECK-NEXT: snez a0, a0 |
| ; CHECK-NEXT: clzw a1, a1 |
| ; CHECK-NEXT: sub a2, a2, a1 |
| ; CHECK-NEXT: addi a0, a0, -1 |
| ; CHECK-NEXT: or a0, a0, a2 |
| ; CHECK-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 { |
| ; CHECK-LABEL: ffs_i32: |
| ; CHECK: # %bb.0: |
| ; CHECK-NEXT: addi a1, a0, -1 |
| ; CHECK-NEXT: not a2, a0 |
| ; CHECK-NEXT: and a1, a2, a1 |
| ; CHECK-NEXT: li a2, 33 |
| ; CHECK-NEXT: seqz a0, a0 |
| ; CHECK-NEXT: clzw a1, a1 |
| ; CHECK-NEXT: sub a2, a2, a1 |
| ; CHECK-NEXT: addi a0, a0, -1 |
| ; CHECK-NEXT: and a0, a0, a2 |
| ; CHECK-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 { |
| ; CHECK-LABEL: cttz_i64: |
| ; CHECK: # %bb.0: |
| ; CHECK-NEXT: beqz a0, .LBB10_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, 64 |
| ; CHECK-NEXT: sub a0, a1, a0 |
| ; CHECK-NEXT: ret |
| ; CHECK-NEXT: .LBB10_2: |
| ; CHECK-NEXT: li a0, 64 |
| ; CHECK-NEXT: ret |
| %1 = call i64 @llvm.cttz.i64(i64 %a, i1 false) |
| ret i64 %1 |
| } |
| |
| define signext i32 @sextb_i32(i32 signext %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: ret |
| %shl = shl i64 %a, 56 |
| %shr = ashr exact i64 %shl, 56 |
| ret i64 %shr |
| } |
| |
| define signext i32 @sexth_i32(i32 signext %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: 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 { |
| ; 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 |
| } |
| |
| define i64 @min_i64(i64 %a, i64 %b) nounwind { |
| ; CHECK-LABEL: min_i64: |
| ; CHECK: # %bb.0: |
| ; CHECK-NEXT: min a0, a0, a1 |
| ; CHECK-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 { |
| ; 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 |
| } |
| |
| define i64 @max_i64(i64 %a, i64 %b) nounwind { |
| ; CHECK-LABEL: max_i64: |
| ; CHECK: # %bb.0: |
| ; CHECK-NEXT: max a0, a0, a1 |
| ; CHECK-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 { |
| ; 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 |
| } |
| |
| define i64 @minu_i64(i64 %a, i64 %b) nounwind { |
| ; CHECK-LABEL: minu_i64: |
| ; CHECK: # %bb.0: |
| ; CHECK-NEXT: minu a0, a0, a1 |
| ; CHECK-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 { |
| ; 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 |
| } |
| |
| define i64 @maxu_i64(i64 %a, i64 %b) nounwind { |
| ; CHECK-LABEL: maxu_i64: |
| ; CHECK: # %bb.0: |
| ; CHECK-NEXT: maxu a0, a0, a1 |
| ; 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: absw a0, a0 |
| ; CHECK-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) { |
| ; CHECK-LABEL: abs_i32_sext: |
| ; CHECK: # %bb.0: |
| ; CHECK-NEXT: absw 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: abs a0, a0 |
| ; CHECK-NEXT: ret |
| %abs = tail call i64 @llvm.abs.i64(i64 %x, i1 true) |
| ret i64 %abs |
| } |
| |
| declare i32 @llvm.bswap.i32(i32) |
| |
| define signext i32 @bswap_i32(i32 signext %a) nounwind { |
| ; CHECK-LABEL: bswap_i32: |
| ; CHECK: # %bb.0: |
| ; CHECK-NEXT: rev8 a0, a0 |
| ; CHECK-NEXT: srai a0, a0, 32 |
| ; CHECK-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, ptr %x) nounwind { |
| ; CHECK-LABEL: bswap_i32_nosext: |
| ; CHECK: # %bb.0: |
| ; CHECK-NEXT: rev8 a0, a0 |
| ; CHECK-NEXT: srli a0, a0, 32 |
| ; CHECK-NEXT: sw a0, 0(a1) |
| ; CHECK-NEXT: ret |
| %1 = tail call i32 @llvm.bswap.i32(i32 %a) |
| store i32 %1, ptr %x |
| ret void |
| } |
| |
| declare i64 @llvm.bswap.i64(i64) |
| |
| define i64 @bswap_i64(i64 %a) { |
| ; CHECK-LABEL: bswap_i64: |
| ; CHECK: # %bb.0: |
| ; CHECK-NEXT: rev8 a0, a0 |
| ; CHECK-NEXT: ret |
| %1 = call i64 @llvm.bswap.i64(i64 %a) |
| ret i64 %1 |
| } |
| |
| define i64 @srai_slli(i16 signext %0) { |
| ; CHECK-LABEL: srai_slli: |
| ; CHECK: # %bb.0: |
| ; CHECK-NEXT: slli a0, a0, 57 |
| ; CHECK-NEXT: srai a0, a0, 63 |
| ; CHECK-NEXT: ret |
| %2 = shl i16 %0, 9 |
| %sext = ashr i16 %2, 15 |
| %3 = sext i16 %sext to i64 |
| ret i64 %3 |
| } |
| |
| define i64 @srai_slli2(i16 signext %0) { |
| ; CHECK-LABEL: srai_slli2: |
| ; CHECK: # %bb.0: |
| ; CHECK-NEXT: slli a0, a0, 57 |
| ; CHECK-NEXT: srai a0, a0, 62 |
| ; CHECK-NEXT: ret |
| %2 = shl i16 %0, 9 |
| %sext = ashr i16 %2, 14 |
| %3 = sext i16 %sext to i64 |
| ret i64 %3 |
| } |
| |
| define signext i32 @func0000000000000001(i32 signext %0, i8 signext %1) #0 { |
| ; CHECK-LABEL: func0000000000000001: |
| ; CHECK: # %bb.0: # %entry |
| ; CHECK-NEXT: slli a1, a1, 59 |
| ; CHECK-NEXT: srai a1, a1, 63 |
| ; CHECK-NEXT: addw a0, a1, a0 |
| ; CHECK-NEXT: ret |
| entry: |
| %2 = shl i8 %1, 3 |
| %3 = ashr i8 %2, 7 |
| %4 = sext i8 %3 to i32 |
| %5 = add nsw i32 %4, %0 |
| ret i32 %5 |
| } |
| |
| 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: sext.w a2, a0 |
| ; CHECK-NEXT: subw a0, a0, a1 |
| ; CHECK-NEXT: minu 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 |
| ret i32 %sub |
| } |
| |
| define i64 @sub_if_uge_i64(i64 %x, i64 %y) { |
| ; CHECK-LABEL: sub_if_uge_i64: |
| ; CHECK: # %bb.0: |
| ; CHECK-NEXT: sub a1, a0, a1 |
| ; CHECK-NEXT: minu a0, a0, a1 |
| ; 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: beq a1, a3, .LBB36_2 |
| ; CHECK-NEXT: # %bb.1: |
| ; CHECK-NEXT: sltu a4, a1, a3 |
| ; CHECK-NEXT: j .LBB36_3 |
| ; CHECK-NEXT: .LBB36_2: |
| ; CHECK-NEXT: sltu a4, a0, a2 |
| ; CHECK-NEXT: .LBB36_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 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: sext.w a2, a1 |
| ; CHECK-NEXT: sext.w a3, a0 |
| ; CHECK-NEXT: sltu a2, a3, a2 |
| ; CHECK-NEXT: addi a2, a2, -1 |
| ; CHECK-NEXT: and a1, a2, a1 |
| ; CHECK-NEXT: sub a0, a0, a1 |
| ; CHECK-NEXT: sllw 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: sext.w a2, a1 |
| ; CHECK-NEXT: sext.w a3, a0 |
| ; CHECK-NEXT: subw a0, a0, a1 |
| ; CHECK-NEXT: minu a0, a3, a0 |
| ; CHECK-NEXT: bltu a3, a2, .LBB38_2 |
| ; CHECK-NEXT: # %bb.1: |
| ; CHECK-NEXT: li a1, 4 |
| ; CHECK-NEXT: sllw a0, a0, a1 |
| ; CHECK-NEXT: ret |
| ; CHECK-NEXT: .LBB38_2: |
| ; CHECK-NEXT: li a1, 2 |
| ; CHECK-NEXT: sllw 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 |
| %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 signext %x, i32 signext %y, ptr %z) { |
| ; CHECK-LABEL: sub_if_uge_multiuse_cmp_store_i32: |
| ; CHECK: # %bb.0: |
| ; CHECK-NEXT: sltu a3, a0, a1 |
| ; CHECK-NEXT: subw 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, 48 |
| ; CHECK-NEXT: srli a1, a1, 48 |
| ; 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: addw 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: lui a1, 1046192 |
| ; CHECK-NEXT: addi a1, a1, -761 |
| ; CHECK-NEXT: slli a1, a1, 9 |
| ; CHECK-NEXT: add a1, a0, a1 |
| ; CHECK-NEXT: minu a0, a1, a0 |
| ; 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: addw 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: addw 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 signext %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: addw 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 |
| } |
