| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| ; RUN: llc < %s -mtriple=aarch64 | FileCheck %s |
| |
| ; |
| ; trunc(nabs(sub(sext(a),sext(b)))) -> nabds(a,b) |
| ; |
| |
| define i8 @abd_ext_i8(i8 %a, i8 %b) nounwind { |
| ; CHECK-LABEL: abd_ext_i8: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: sxtb w8, w0 |
| ; CHECK-NEXT: sub w8, w8, w1, sxtb |
| ; CHECK-NEXT: cmp w8, #0 |
| ; CHECK-NEXT: cneg w0, w8, pl |
| ; CHECK-NEXT: ret |
| %aext = sext i8 %a to i64 |
| %bext = sext i8 %b to i64 |
| %sub = sub i64 %aext, %bext |
| %abs = call i64 @llvm.abs.i64(i64 %sub, i1 false) |
| %nabs = sub i64 0, %abs |
| %trunc = trunc i64 %nabs to i8 |
| ret i8 %trunc |
| } |
| |
| define i8 @abd_ext_i8_i16(i8 %a, i16 %b) nounwind { |
| ; CHECK-LABEL: abd_ext_i8_i16: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: sxtb w8, w0 |
| ; CHECK-NEXT: sub w8, w8, w1, sxth |
| ; CHECK-NEXT: cmp w8, #0 |
| ; CHECK-NEXT: cneg w0, w8, pl |
| ; CHECK-NEXT: ret |
| %aext = sext i8 %a to i64 |
| %bext = sext i16 %b to i64 |
| %sub = sub i64 %aext, %bext |
| %abs = call i64 @llvm.abs.i64(i64 %sub, i1 false) |
| %nabs = sub i64 0, %abs |
| %trunc = trunc i64 %nabs to i8 |
| ret i8 %trunc |
| } |
| |
| define i8 @abd_ext_i8_undef(i8 %a, i8 %b) nounwind { |
| ; CHECK-LABEL: abd_ext_i8_undef: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: sxtb w8, w0 |
| ; CHECK-NEXT: sub w8, w8, w1, sxtb |
| ; CHECK-NEXT: cmp w8, #0 |
| ; CHECK-NEXT: cneg w0, w8, pl |
| ; CHECK-NEXT: ret |
| %aext = sext i8 %a to i64 |
| %bext = sext i8 %b to i64 |
| %sub = sub i64 %aext, %bext |
| %abs = call i64 @llvm.abs.i64(i64 %sub, i1 true) |
| %nabs = sub i64 0, %abs |
| %trunc = trunc i64 %nabs to i8 |
| ret i8 %trunc |
| } |
| |
| define i16 @abd_ext_i16(i16 %a, i16 %b) nounwind { |
| ; CHECK-LABEL: abd_ext_i16: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: sxth w8, w0 |
| ; CHECK-NEXT: sub w8, w8, w1, sxth |
| ; CHECK-NEXT: cmp w8, #0 |
| ; CHECK-NEXT: cneg w0, w8, pl |
| ; CHECK-NEXT: ret |
| %aext = sext i16 %a to i64 |
| %bext = sext i16 %b to i64 |
| %sub = sub i64 %aext, %bext |
| %abs = call i64 @llvm.abs.i64(i64 %sub, i1 false) |
| %nabs = sub i64 0, %abs |
| %trunc = trunc i64 %nabs to i16 |
| ret i16 %trunc |
| } |
| |
| define i16 @abd_ext_i16_i32(i16 %a, i32 %b) nounwind { |
| ; CHECK-LABEL: abd_ext_i16_i32: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: sxth w8, w0 |
| ; CHECK-NEXT: sub w9, w1, w8 |
| ; CHECK-NEXT: subs w8, w8, w1 |
| ; CHECK-NEXT: csel w8, w8, w9, gt |
| ; CHECK-NEXT: neg w0, w8 |
| ; CHECK-NEXT: ret |
| %aext = sext i16 %a to i64 |
| %bext = sext i32 %b to i64 |
| %sub = sub i64 %aext, %bext |
| %abs = call i64 @llvm.abs.i64(i64 %sub, i1 false) |
| %nabs = sub i64 0, %abs |
| %trunc = trunc i64 %nabs to i16 |
| ret i16 %trunc |
| } |
| |
| define i16 @abd_ext_i16_undef(i16 %a, i16 %b) nounwind { |
| ; CHECK-LABEL: abd_ext_i16_undef: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: sxth w8, w0 |
| ; CHECK-NEXT: sub w8, w8, w1, sxth |
| ; CHECK-NEXT: cmp w8, #0 |
| ; CHECK-NEXT: cneg w0, w8, pl |
| ; CHECK-NEXT: ret |
| %aext = sext i16 %a to i64 |
| %bext = sext i16 %b to i64 |
| %sub = sub i64 %aext, %bext |
| %abs = call i64 @llvm.abs.i64(i64 %sub, i1 true) |
| %nabs = sub i64 0, %abs |
| %trunc = trunc i64 %nabs to i16 |
| ret i16 %trunc |
| } |
| |
| define i32 @abd_ext_i32(i32 %a, i32 %b) nounwind { |
| ; CHECK-LABEL: abd_ext_i32: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: sub w8, w1, w0 |
| ; CHECK-NEXT: subs w9, w0, w1 |
| ; CHECK-NEXT: csel w8, w9, w8, gt |
| ; CHECK-NEXT: neg w0, w8 |
| ; CHECK-NEXT: ret |
| %aext = sext i32 %a to i64 |
| %bext = sext i32 %b to i64 |
| %sub = sub i64 %aext, %bext |
| %abs = call i64 @llvm.abs.i64(i64 %sub, i1 false) |
| %nabs = sub i64 0, %abs |
| %trunc = trunc i64 %nabs to i32 |
| ret i32 %trunc |
| } |
| |
| define i32 @abd_ext_i32_i16(i32 %a, i16 %b) nounwind { |
| ; CHECK-LABEL: abd_ext_i32_i16: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: sxth w8, w1 |
| ; CHECK-NEXT: sub w9, w8, w0 |
| ; CHECK-NEXT: subs w8, w0, w8 |
| ; CHECK-NEXT: csel w8, w8, w9, gt |
| ; CHECK-NEXT: neg w0, w8 |
| ; CHECK-NEXT: ret |
| %aext = sext i32 %a to i64 |
| %bext = sext i16 %b to i64 |
| %sub = sub i64 %aext, %bext |
| %abs = call i64 @llvm.abs.i64(i64 %sub, i1 false) |
| %nabs = sub i64 0, %abs |
| %trunc = trunc i64 %nabs to i32 |
| ret i32 %trunc |
| } |
| |
| define i32 @abd_ext_i32_undef(i32 %a, i32 %b) nounwind { |
| ; CHECK-LABEL: abd_ext_i32_undef: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: sub w8, w1, w0 |
| ; CHECK-NEXT: subs w9, w0, w1 |
| ; CHECK-NEXT: csel w8, w9, w8, gt |
| ; CHECK-NEXT: neg w0, w8 |
| ; CHECK-NEXT: ret |
| %aext = sext i32 %a to i64 |
| %bext = sext i32 %b to i64 |
| %sub = sub i64 %aext, %bext |
| %abs = call i64 @llvm.abs.i64(i64 %sub, i1 true) |
| %nabs = sub i64 0, %abs |
| %trunc = trunc i64 %nabs to i32 |
| ret i32 %trunc |
| } |
| |
| define i64 @abd_ext_i64(i64 %a, i64 %b) nounwind { |
| ; CHECK-LABEL: abd_ext_i64: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: sub x8, x1, x0 |
| ; CHECK-NEXT: subs x9, x0, x1 |
| ; CHECK-NEXT: csel x8, x9, x8, gt |
| ; CHECK-NEXT: neg x0, x8 |
| ; CHECK-NEXT: ret |
| %aext = sext i64 %a to i128 |
| %bext = sext i64 %b to i128 |
| %sub = sub i128 %aext, %bext |
| %abs = call i128 @llvm.abs.i128(i128 %sub, i1 false) |
| %nabs = sub i128 0, %abs |
| %trunc = trunc i128 %nabs to i64 |
| ret i64 %trunc |
| } |
| |
| define i64 @abd_ext_i64_undef(i64 %a, i64 %b) nounwind { |
| ; CHECK-LABEL: abd_ext_i64_undef: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: sub x8, x1, x0 |
| ; CHECK-NEXT: subs x9, x0, x1 |
| ; CHECK-NEXT: csel x8, x9, x8, gt |
| ; CHECK-NEXT: neg x0, x8 |
| ; CHECK-NEXT: ret |
| %aext = sext i64 %a to i128 |
| %bext = sext i64 %b to i128 |
| %sub = sub i128 %aext, %bext |
| %abs = call i128 @llvm.abs.i128(i128 %sub, i1 true) |
| %nabs = sub i128 0, %abs |
| %trunc = trunc i128 %nabs to i64 |
| ret i64 %trunc |
| } |
| |
| define i128 @abd_ext_i128(i128 %a, i128 %b) nounwind { |
| ; CHECK-LABEL: abd_ext_i128: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: subs x8, x0, x2 |
| ; CHECK-NEXT: sbc x9, x1, x3 |
| ; CHECK-NEXT: subs x10, x2, x0 |
| ; CHECK-NEXT: sbc x11, x3, x1 |
| ; CHECK-NEXT: sbcs xzr, x3, x1 |
| ; CHECK-NEXT: csel x8, x8, x10, lt |
| ; CHECK-NEXT: csel x9, x9, x11, lt |
| ; CHECK-NEXT: negs x0, x8 |
| ; CHECK-NEXT: ngc x1, x9 |
| ; CHECK-NEXT: ret |
| %aext = sext i128 %a to i256 |
| %bext = sext i128 %b to i256 |
| %sub = sub i256 %aext, %bext |
| %abs = call i256 @llvm.abs.i256(i256 %sub, i1 false) |
| %nabs = sub i256 0, %abs |
| %trunc = trunc i256 %nabs to i128 |
| ret i128 %trunc |
| } |
| |
| define i128 @abd_ext_i128_undef(i128 %a, i128 %b) nounwind { |
| ; CHECK-LABEL: abd_ext_i128_undef: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: subs x8, x0, x2 |
| ; CHECK-NEXT: sbc x9, x1, x3 |
| ; CHECK-NEXT: subs x10, x2, x0 |
| ; CHECK-NEXT: sbc x11, x3, x1 |
| ; CHECK-NEXT: sbcs xzr, x3, x1 |
| ; CHECK-NEXT: csel x8, x8, x10, lt |
| ; CHECK-NEXT: csel x9, x9, x11, lt |
| ; CHECK-NEXT: negs x0, x8 |
| ; CHECK-NEXT: ngc x1, x9 |
| ; CHECK-NEXT: ret |
| %aext = sext i128 %a to i256 |
| %bext = sext i128 %b to i256 |
| %sub = sub i256 %aext, %bext |
| %abs = call i256 @llvm.abs.i256(i256 %sub, i1 true) |
| %nabs = sub i256 0, %abs |
| %trunc = trunc i256 %nabs to i128 |
| ret i128 %trunc |
| } |
| |
| ; |
| ; sub(smin(a,b),smax(a,b)) -> nabds(a,b) |
| ; |
| |
| define i8 @abd_minmax_i8(i8 %a, i8 %b) nounwind { |
| ; CHECK-LABEL: abd_minmax_i8: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: sxtb w8, w1 |
| ; CHECK-NEXT: sxtb w9, w0 |
| ; CHECK-NEXT: cmp w9, w8 |
| ; CHECK-NEXT: csel w10, w9, w8, lt |
| ; CHECK-NEXT: csel w8, w9, w8, gt |
| ; CHECK-NEXT: sub w0, w10, w8 |
| ; CHECK-NEXT: ret |
| %min = call i8 @llvm.smin.i8(i8 %a, i8 %b) |
| %max = call i8 @llvm.smax.i8(i8 %a, i8 %b) |
| %sub = sub i8 %min, %max |
| ret i8 %sub |
| } |
| |
| define i16 @abd_minmax_i16(i16 %a, i16 %b) nounwind { |
| ; CHECK-LABEL: abd_minmax_i16: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: sxth w8, w1 |
| ; CHECK-NEXT: sxth w9, w0 |
| ; CHECK-NEXT: cmp w9, w8 |
| ; CHECK-NEXT: csel w10, w9, w8, lt |
| ; CHECK-NEXT: csel w8, w9, w8, gt |
| ; CHECK-NEXT: sub w0, w10, w8 |
| ; CHECK-NEXT: ret |
| %min = call i16 @llvm.smin.i16(i16 %a, i16 %b) |
| %max = call i16 @llvm.smax.i16(i16 %a, i16 %b) |
| %sub = sub i16 %min, %max |
| ret i16 %sub |
| } |
| |
| define i32 @abd_minmax_i32(i32 %a, i32 %b) nounwind { |
| ; CHECK-LABEL: abd_minmax_i32: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: cmp w0, w1 |
| ; CHECK-NEXT: csel w8, w0, w1, lt |
| ; CHECK-NEXT: csel w9, w0, w1, gt |
| ; CHECK-NEXT: sub w0, w8, w9 |
| ; CHECK-NEXT: ret |
| %min = call i32 @llvm.smin.i32(i32 %a, i32 %b) |
| %max = call i32 @llvm.smax.i32(i32 %a, i32 %b) |
| %sub = sub i32 %min, %max |
| ret i32 %sub |
| } |
| |
| define i64 @abd_minmax_i64(i64 %a, i64 %b) nounwind { |
| ; CHECK-LABEL: abd_minmax_i64: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: cmp x0, x1 |
| ; CHECK-NEXT: csel x8, x0, x1, lt |
| ; CHECK-NEXT: csel x9, x0, x1, gt |
| ; CHECK-NEXT: sub x0, x8, x9 |
| ; CHECK-NEXT: ret |
| %min = call i64 @llvm.smin.i64(i64 %a, i64 %b) |
| %max = call i64 @llvm.smax.i64(i64 %a, i64 %b) |
| %sub = sub i64 %min, %max |
| ret i64 %sub |
| } |
| |
| define i128 @abd_minmax_i128(i128 %a, i128 %b) nounwind { |
| ; CHECK-LABEL: abd_minmax_i128: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: cmp x0, x2 |
| ; CHECK-NEXT: sbcs xzr, x1, x3 |
| ; CHECK-NEXT: csel x8, x1, x3, lt |
| ; CHECK-NEXT: csel x9, x0, x2, lt |
| ; CHECK-NEXT: cmp x2, x0 |
| ; CHECK-NEXT: sbcs xzr, x3, x1 |
| ; CHECK-NEXT: csel x10, x0, x2, lt |
| ; CHECK-NEXT: csel x11, x1, x3, lt |
| ; CHECK-NEXT: subs x0, x9, x10 |
| ; CHECK-NEXT: sbc x1, x8, x11 |
| ; CHECK-NEXT: ret |
| %min = call i128 @llvm.smin.i128(i128 %a, i128 %b) |
| %max = call i128 @llvm.smax.i128(i128 %a, i128 %b) |
| %sub = sub i128 %min, %max |
| ret i128 %sub |
| } |
| |
| ; |
| ; select(icmp(a,b),sub(a,b),sub(b,a)) -> nabds(a,b) |
| ; |
| |
| define i8 @abd_cmp_i8(i8 %a, i8 %b) nounwind { |
| ; CHECK-LABEL: abd_cmp_i8: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: sxtb w8, w0 |
| ; CHECK-NEXT: sub w9, w0, w1 |
| ; CHECK-NEXT: sub w10, w1, w0 |
| ; CHECK-NEXT: cmp w8, w1, sxtb |
| ; CHECK-NEXT: csel w0, w9, w10, le |
| ; CHECK-NEXT: ret |
| %cmp = icmp sle i8 %a, %b |
| %ab = sub i8 %a, %b |
| %ba = sub i8 %b, %a |
| %sel = select i1 %cmp, i8 %ab, i8 %ba |
| ret i8 %sel |
| } |
| |
| define i16 @abd_cmp_i16(i16 %a, i16 %b) nounwind { |
| ; CHECK-LABEL: abd_cmp_i16: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: sxth w8, w0 |
| ; CHECK-NEXT: sub w9, w0, w1 |
| ; CHECK-NEXT: sub w10, w1, w0 |
| ; CHECK-NEXT: cmp w8, w1, sxth |
| ; CHECK-NEXT: csel w0, w9, w10, lt |
| ; CHECK-NEXT: ret |
| %cmp = icmp slt i16 %a, %b |
| %ab = sub i16 %a, %b |
| %ba = sub i16 %b, %a |
| %sel = select i1 %cmp, i16 %ab, i16 %ba |
| ret i16 %sel |
| } |
| |
| define i32 @abd_cmp_i32(i32 %a, i32 %b) nounwind { |
| ; CHECK-LABEL: abd_cmp_i32: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: sub w8, w1, w0 |
| ; CHECK-NEXT: subs w9, w0, w1 |
| ; CHECK-NEXT: csel w0, w8, w9, ge |
| ; CHECK-NEXT: ret |
| %cmp = icmp sge i32 %a, %b |
| %ab = sub i32 %a, %b |
| %ba = sub i32 %b, %a |
| %sel = select i1 %cmp, i32 %ba, i32 %ab |
| ret i32 %sel |
| } |
| |
| define i64 @abd_cmp_i64(i64 %a, i64 %b) nounwind { |
| ; CHECK-LABEL: abd_cmp_i64: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: sub x8, x1, x0 |
| ; CHECK-NEXT: subs x9, x0, x1 |
| ; CHECK-NEXT: csel x0, x9, x8, gt |
| ; CHECK-NEXT: ret |
| %cmp = icmp slt i64 %a, %b |
| %ab = sub i64 %a, %b |
| %ba = sub i64 %b, %a |
| %sel = select i1 %cmp, i64 %ba, i64 %ab |
| ret i64 %sel |
| } |
| |
| define i128 @abd_cmp_i128(i128 %a, i128 %b) nounwind { |
| ; CHECK-LABEL: abd_cmp_i128: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: subs x8, x0, x2 |
| ; CHECK-NEXT: sbc x9, x1, x3 |
| ; CHECK-NEXT: subs x10, x2, x0 |
| ; CHECK-NEXT: sbc x11, x3, x1 |
| ; CHECK-NEXT: sbcs xzr, x3, x1 |
| ; CHECK-NEXT: csel x0, x8, x10, lt |
| ; CHECK-NEXT: csel x1, x9, x11, lt |
| ; CHECK-NEXT: ret |
| %cmp = icmp slt i128 %a, %b |
| %ab = sub i128 %a, %b |
| %ba = sub i128 %b, %a |
| %sel = select i1 %cmp, i128 %ba, i128 %ab |
| ret i128 %sel |
| } |
| |
| ; |
| ; nabs(sub_nsw(x, y)) -> nabds(a,b) |
| ; |
| |
| define i8 @abd_subnsw_i8(i8 %a, i8 %b) nounwind { |
| ; CHECK-LABEL: abd_subnsw_i8: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: sub w8, w0, w1 |
| ; CHECK-NEXT: sbfx w9, w8, #7, #1 |
| ; CHECK-NEXT: eor w8, w8, w9 |
| ; CHECK-NEXT: sub w0, w9, w8 |
| ; CHECK-NEXT: ret |
| %sub = sub nsw i8 %a, %b |
| %abs = call i8 @llvm.abs.i8(i8 %sub, i1 false) |
| %nabs = sub i8 0, %abs |
| ret i8 %nabs |
| } |
| |
| define i8 @abd_subnsw_i8_undef(i8 %a, i8 %b) nounwind { |
| ; CHECK-LABEL: abd_subnsw_i8_undef: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: sub w8, w0, w1 |
| ; CHECK-NEXT: sbfx w9, w8, #7, #1 |
| ; CHECK-NEXT: eor w8, w8, w9 |
| ; CHECK-NEXT: sub w0, w9, w8 |
| ; CHECK-NEXT: ret |
| %sub = sub nsw i8 %a, %b |
| %abs = call i8 @llvm.abs.i8(i8 %sub, i1 true) |
| %nabs = sub i8 0, %abs |
| ret i8 %nabs |
| } |
| |
| define i16 @abd_subnsw_i16(i16 %a, i16 %b) nounwind { |
| ; CHECK-LABEL: abd_subnsw_i16: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: sub w8, w0, w1 |
| ; CHECK-NEXT: sbfx w9, w8, #15, #1 |
| ; CHECK-NEXT: eor w8, w8, w9 |
| ; CHECK-NEXT: sub w0, w9, w8 |
| ; CHECK-NEXT: ret |
| %sub = sub nsw i16 %a, %b |
| %abs = call i16 @llvm.abs.i16(i16 %sub, i1 false) |
| %nabs = sub i16 0, %abs |
| ret i16 %nabs |
| } |
| |
| define i16 @abd_subnsw_i16_undef(i16 %a, i16 %b) nounwind { |
| ; CHECK-LABEL: abd_subnsw_i16_undef: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: sub w8, w0, w1 |
| ; CHECK-NEXT: sbfx w9, w8, #15, #1 |
| ; CHECK-NEXT: eor w8, w8, w9 |
| ; CHECK-NEXT: sub w0, w9, w8 |
| ; CHECK-NEXT: ret |
| %sub = sub nsw i16 %a, %b |
| %abs = call i16 @llvm.abs.i16(i16 %sub, i1 true) |
| %nabs = sub i16 0, %abs |
| ret i16 %nabs |
| } |
| |
| define i32 @abd_subnsw_i32(i32 %a, i32 %b) nounwind { |
| ; CHECK-LABEL: abd_subnsw_i32: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: subs w8, w0, w1 |
| ; CHECK-NEXT: cneg w0, w8, pl |
| ; CHECK-NEXT: ret |
| %sub = sub nsw i32 %a, %b |
| %abs = call i32 @llvm.abs.i32(i32 %sub, i1 false) |
| %nabs = sub i32 0, %abs |
| ret i32 %nabs |
| } |
| |
| define i32 @abd_subnsw_i32_undef(i32 %a, i32 %b) nounwind { |
| ; CHECK-LABEL: abd_subnsw_i32_undef: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: subs w8, w0, w1 |
| ; CHECK-NEXT: cneg w0, w8, pl |
| ; CHECK-NEXT: ret |
| %sub = sub nsw i32 %a, %b |
| %abs = call i32 @llvm.abs.i32(i32 %sub, i1 true) |
| %nabs = sub i32 0, %abs |
| ret i32 %nabs |
| } |
| |
| define i64 @abd_subnsw_i64(i64 %a, i64 %b) nounwind { |
| ; CHECK-LABEL: abd_subnsw_i64: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: subs x8, x0, x1 |
| ; CHECK-NEXT: cneg x0, x8, pl |
| ; CHECK-NEXT: ret |
| %sub = sub nsw i64 %a, %b |
| %abs = call i64 @llvm.abs.i64(i64 %sub, i1 false) |
| %nabs = sub i64 0, %abs |
| ret i64 %nabs |
| } |
| |
| define i64 @abd_subnsw_i64_undef(i64 %a, i64 %b) nounwind { |
| ; CHECK-LABEL: abd_subnsw_i64_undef: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: subs x8, x0, x1 |
| ; CHECK-NEXT: cneg x0, x8, pl |
| ; CHECK-NEXT: ret |
| %sub = sub nsw i64 %a, %b |
| %abs = call i64 @llvm.abs.i64(i64 %sub, i1 true) |
| %nabs = sub i64 0, %abs |
| ret i64 %nabs |
| } |
| |
| define i128 @abd_subnsw_i128(i128 %a, i128 %b) nounwind { |
| ; CHECK-LABEL: abd_subnsw_i128: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: subs x8, x0, x2 |
| ; CHECK-NEXT: sbc x9, x1, x3 |
| ; CHECK-NEXT: asr x10, x9, #63 |
| ; CHECK-NEXT: eor x8, x8, x10 |
| ; CHECK-NEXT: eor x9, x9, x10 |
| ; CHECK-NEXT: subs x0, x10, x8 |
| ; CHECK-NEXT: sbc x1, x10, x9 |
| ; CHECK-NEXT: ret |
| %sub = sub nsw i128 %a, %b |
| %abs = call i128 @llvm.abs.i128(i128 %sub, i1 false) |
| %nabs = sub i128 0, %abs |
| ret i128 %nabs |
| } |
| |
| define i128 @abd_subnsw_i128_undef(i128 %a, i128 %b) nounwind { |
| ; CHECK-LABEL: abd_subnsw_i128_undef: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: subs x8, x0, x2 |
| ; CHECK-NEXT: sbc x9, x1, x3 |
| ; CHECK-NEXT: asr x10, x9, #63 |
| ; CHECK-NEXT: eor x8, x8, x10 |
| ; CHECK-NEXT: eor x9, x9, x10 |
| ; CHECK-NEXT: subs x0, x10, x8 |
| ; CHECK-NEXT: sbc x1, x10, x9 |
| ; CHECK-NEXT: ret |
| %sub = sub nsw i128 %a, %b |
| %abs = call i128 @llvm.abs.i128(i128 %sub, i1 true) |
| %nabs = sub i128 0, %abs |
| ret i128 %nabs |
| } |
| |
| declare i8 @llvm.abs.i8(i8, i1) |
| declare i16 @llvm.abs.i16(i16, i1) |
| declare i32 @llvm.abs.i32(i32, i1) |
| declare i64 @llvm.abs.i64(i64, i1) |
| declare i128 @llvm.abs.i128(i128, i1) |
| |
| declare i8 @llvm.smax.i8(i8, i8) |
| declare i16 @llvm.smax.i16(i16, i16) |
| declare i32 @llvm.smax.i32(i32, i32) |
| declare i64 @llvm.smax.i64(i64, i64) |
| |
| declare i8 @llvm.smin.i8(i8, i8) |
| declare i16 @llvm.smin.i16(i16, i16) |
| declare i32 @llvm.smin.i32(i32, i32) |
| declare i64 @llvm.smin.i64(i64, i64) |