From 18faf2fc64ccc6251074ce4b084d6f0aaa2d0548 Mon Sep 17 00:00:00 2001
From: David Green <david.green@arm.com>
Date: Wed, 9 Oct 2019 12:29:51 +0000
Subject: [PATCH] [ARM] Add saturating arithmetic tests for MVE. NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@374159 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/CodeGen/Thumb2/mve-saturating-arith.ll | 501 ++++++++++++++++++++++++++++
 1 file changed, 501 insertions(+)
 create mode 100644 test/CodeGen/Thumb2/mve-saturating-arith.ll

diff --git a/test/CodeGen/Thumb2/mve-saturating-arith.ll b/test/CodeGen/Thumb2/mve-saturating-arith.ll
new file mode 100644
index 00000000000..f6a9af42f6a
--- /dev/null
+++ b/test/CodeGen/Thumb2/mve-saturating-arith.ll
@@ -0,0 +1,501 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc -mtriple=thumbv8.1m.main-arm-none-eabi -mattr=+mve -verify-machineinstrs %s -o - | FileCheck %s
+
+define arm_aapcs_vfpcc <16 x i8> @sadd_int8_t(<16 x i8> %src1, <16 x i8> %src2) {
+; CHECK-LABEL: sadd_int8_t:
+; CHECK:       @ %bb.0: @ %entry
+; CHECK-NEXT:    .vsave {d8, d9}
+; CHECK-NEXT:    vpush {d8, d9}
+; CHECK-NEXT:    vadd.i8 q2, q0, q1
+; CHECK-NEXT:    vmov.i8 q3, #0x80
+; CHECK-NEXT:    vcmp.s8 lt, q2, zr
+; CHECK-NEXT:    vmov.i8 q4, #0x7f
+; CHECK-NEXT:    vpsel q3, q4, q3
+; CHECK-NEXT:    vcmp.s8 gt, q0, q2
+; CHECK-NEXT:    vmrs r0, p0
+; CHECK-NEXT:    vcmp.s8 lt, q1, zr
+; CHECK-NEXT:    vmrs r1, p0
+; CHECK-NEXT:    eors r0, r1
+; CHECK-NEXT:    vmsr p0, r0
+; CHECK-NEXT:    vpsel q0, q3, q2
+; CHECK-NEXT:    vpop {d8, d9}
+; CHECK-NEXT:    bx lr
+entry:
+  %0 = call <16 x i8> @llvm.sadd.sat.v16i8(<16 x i8> %src1, <16 x i8> %src2)
+  ret <16 x i8> %0
+}
+
+define arm_aapcs_vfpcc <8 x i16> @sadd_int16_t(<8 x i16> %src1, <8 x i16> %src2) {
+; CHECK-LABEL: sadd_int16_t:
+; CHECK:       @ %bb.0: @ %entry
+; CHECK-NEXT:    .vsave {d8, d9}
+; CHECK-NEXT:    vpush {d8, d9}
+; CHECK-NEXT:    vadd.i16 q2, q0, q1
+; CHECK-NEXT:    vmov.i16 q3, #0x8000
+; CHECK-NEXT:    vcmp.s16 lt, q2, zr
+; CHECK-NEXT:    vmvn.i16 q4, #0x8000
+; CHECK-NEXT:    vpsel q3, q4, q3
+; CHECK-NEXT:    vcmp.s16 gt, q0, q2
+; CHECK-NEXT:    vmrs r0, p0
+; CHECK-NEXT:    vcmp.s16 lt, q1, zr
+; CHECK-NEXT:    vmrs r1, p0
+; CHECK-NEXT:    eors r0, r1
+; CHECK-NEXT:    vmsr p0, r0
+; CHECK-NEXT:    vpsel q0, q3, q2
+; CHECK-NEXT:    vpop {d8, d9}
+; CHECK-NEXT:    bx lr
+entry:
+  %0 = call <8 x i16> @llvm.sadd.sat.v8i16(<8 x i16> %src1, <8 x i16> %src2)
+  ret <8 x i16> %0
+}
+
+define arm_aapcs_vfpcc <4 x i32> @sadd_int32_t(<4 x i32> %src1, <4 x i32> %src2) {
+; CHECK-LABEL: sadd_int32_t:
+; CHECK:       @ %bb.0: @ %entry
+; CHECK-NEXT:    .vsave {d8, d9}
+; CHECK-NEXT:    vpush {d8, d9}
+; CHECK-NEXT:    vadd.i32 q2, q0, q1
+; CHECK-NEXT:    vmov.i32 q3, #0x80000000
+; CHECK-NEXT:    vcmp.s32 lt, q2, zr
+; CHECK-NEXT:    vmvn.i32 q4, #0x80000000
+; CHECK-NEXT:    vpsel q3, q4, q3
+; CHECK-NEXT:    vcmp.s32 gt, q0, q2
+; CHECK-NEXT:    vmrs r0, p0
+; CHECK-NEXT:    vcmp.s32 lt, q1, zr
+; CHECK-NEXT:    vmrs r1, p0
+; CHECK-NEXT:    eors r0, r1
+; CHECK-NEXT:    vmsr p0, r0
+; CHECK-NEXT:    vpsel q0, q3, q2
+; CHECK-NEXT:    vpop {d8, d9}
+; CHECK-NEXT:    bx lr
+entry:
+  %0 = call <4 x i32> @llvm.sadd.sat.v4i32(<4 x i32> %src1, <4 x i32> %src2)
+  ret <4 x i32> %0
+}
+
+define arm_aapcs_vfpcc <2 x i64> @sadd_int64_t(<2 x i64> %src1, <2 x i64> %src2) {
+; CHECK-LABEL: sadd_int64_t:
+; CHECK:       @ %bb.0: @ %entry
+; CHECK-NEXT:    .save {r4, r5, r6, r7, r8, lr}
+; CHECK-NEXT:    push.w {r4, r5, r6, r7, r8, lr}
+; CHECK-NEXT:    vmov r0, s4
+; CHECK-NEXT:    vmov r5, s0
+; CHECK-NEXT:    vmov r8, s5
+; CHECK-NEXT:    vmov r4, s1
+; CHECK-NEXT:    vmov r7, s2
+; CHECK-NEXT:    vmov r3, s7
+; CHECK-NEXT:    vmov r6, s3
+; CHECK-NEXT:    adds.w r12, r5, r0
+; CHECK-NEXT:    adc.w r0, r4, r8
+; CHECK-NEXT:    asrs r2, r0, #31
+; CHECK-NEXT:    vmov.32 q2[0], r2
+; CHECK-NEXT:    vmov.32 q2[1], r2
+; CHECK-NEXT:    vmov r2, s6
+; CHECK-NEXT:    adds.w lr, r7, r2
+; CHECK-NEXT:    adc.w r2, r6, r3
+; CHECK-NEXT:    subs.w r5, r12, r5
+; CHECK-NEXT:    sbcs.w r4, r0, r4
+; CHECK-NEXT:    asr.w r1, r2, #31
+; CHECK-NEXT:    mov.w r4, #0
+; CHECK-NEXT:    vmov.32 q2[2], r1
+; CHECK-NEXT:    it lt
+; CHECK-NEXT:    movlt r4, #1
+; CHECK-NEXT:    vmov.32 q2[3], r1
+; CHECK-NEXT:    adr r1, .LCPI3_0
+; CHECK-NEXT:    vldrw.u32 q0, [r1]
+; CHECK-NEXT:    adr r1, .LCPI3_1
+; CHECK-NEXT:    vldrw.u32 q1, [r1]
+; CHECK-NEXT:    cmp r4, #0
+; CHECK-NEXT:    vbic q0, q0, q2
+; CHECK-NEXT:    csetm r4, ne
+; CHECK-NEXT:    vand q1, q1, q2
+; CHECK-NEXT:    movs r1, #0
+; CHECK-NEXT:    vorr q0, q1, q0
+; CHECK-NEXT:    vmov.32 q1[0], r4
+; CHECK-NEXT:    vmov.32 q1[1], r4
+; CHECK-NEXT:    subs.w r4, lr, r7
+; CHECK-NEXT:    sbcs.w r4, r2, r6
+; CHECK-NEXT:    it lt
+; CHECK-NEXT:    movlt r1, #1
+; CHECK-NEXT:    cmp r1, #0
+; CHECK-NEXT:    csetm r1, ne
+; CHECK-NEXT:    vmov.32 q1[2], r1
+; CHECK-NEXT:    vmov.32 q1[3], r1
+; CHECK-NEXT:    asr.w r1, r8, #31
+; CHECK-NEXT:    vmov.32 q2[0], r1
+; CHECK-NEXT:    vmov.32 q2[1], r1
+; CHECK-NEXT:    asrs r1, r3, #31
+; CHECK-NEXT:    vmov.32 q2[2], r1
+; CHECK-NEXT:    vmov.32 q2[3], r1
+; CHECK-NEXT:    veor q1, q2, q1
+; CHECK-NEXT:    vmov.32 q2[0], r12
+; CHECK-NEXT:    vmov.32 q2[1], r0
+; CHECK-NEXT:    vand q0, q0, q1
+; CHECK-NEXT:    vmov.32 q2[2], lr
+; CHECK-NEXT:    vmov.32 q2[3], r2
+; CHECK-NEXT:    vbic q1, q2, q1
+; CHECK-NEXT:    vorr q0, q0, q1
+; CHECK-NEXT:    pop.w {r4, r5, r6, r7, r8, pc}
+; CHECK-NEXT:    .p2align 4
+; CHECK-NEXT:  @ %bb.1:
+; CHECK-NEXT:  .LCPI3_0:
+; CHECK-NEXT:    .long 0 @ 0x0
+; CHECK-NEXT:    .long 2147483648 @ 0x80000000
+; CHECK-NEXT:    .long 0 @ 0x0
+; CHECK-NEXT:    .long 2147483648 @ 0x80000000
+; CHECK-NEXT:  .LCPI3_1:
+; CHECK-NEXT:    .long 4294967295 @ 0xffffffff
+; CHECK-NEXT:    .long 2147483647 @ 0x7fffffff
+; CHECK-NEXT:    .long 4294967295 @ 0xffffffff
+; CHECK-NEXT:    .long 2147483647 @ 0x7fffffff
+entry:
+  %0 = call <2 x i64> @llvm.sadd.sat.v2i64(<2 x i64> %src1, <2 x i64> %src2)
+  ret <2 x i64> %0
+}
+
+define arm_aapcs_vfpcc <16 x i8> @uadd_int8_t(<16 x i8> %src1, <16 x i8> %src2) {
+; CHECK-LABEL: uadd_int8_t:
+; CHECK:       @ %bb.0: @ %entry
+; CHECK-NEXT:    vmvn q2, q1
+; CHECK-NEXT:    vmin.u8 q0, q0, q2
+; CHECK-NEXT:    vadd.i8 q0, q0, q1
+; CHECK-NEXT:    bx lr
+entry:
+  %0 = call <16 x i8> @llvm.uadd.sat.v16i8(<16 x i8> %src1, <16 x i8> %src2)
+  ret <16 x i8> %0
+}
+
+define arm_aapcs_vfpcc <8 x i16> @uadd_int16_t(<8 x i16> %src1, <8 x i16> %src2) {
+; CHECK-LABEL: uadd_int16_t:
+; CHECK:       @ %bb.0: @ %entry
+; CHECK-NEXT:    vmvn q2, q1
+; CHECK-NEXT:    vmin.u16 q0, q0, q2
+; CHECK-NEXT:    vadd.i16 q0, q0, q1
+; CHECK-NEXT:    bx lr
+entry:
+  %0 = call <8 x i16> @llvm.uadd.sat.v8i16(<8 x i16> %src1, <8 x i16> %src2)
+  ret <8 x i16> %0
+}
+
+define arm_aapcs_vfpcc <4 x i32> @uadd_int32_t(<4 x i32> %src1, <4 x i32> %src2) {
+; CHECK-LABEL: uadd_int32_t:
+; CHECK:       @ %bb.0: @ %entry
+; CHECK-NEXT:    vmvn q2, q1
+; CHECK-NEXT:    vmin.u32 q0, q0, q2
+; CHECK-NEXT:    vadd.i32 q0, q0, q1
+; CHECK-NEXT:    bx lr
+entry:
+  %0 = call <4 x i32> @llvm.uadd.sat.v4i32(<4 x i32> %src1, <4 x i32> %src2)
+  ret <4 x i32> %0
+}
+
+define arm_aapcs_vfpcc <2 x i64> @uadd_int64_t(<2 x i64> %src1, <2 x i64> %src2) {
+; CHECK-LABEL: uadd_int64_t:
+; CHECK:       @ %bb.0: @ %entry
+; CHECK-NEXT:    .save {r4, lr}
+; CHECK-NEXT:    push {r4, lr}
+; CHECK-NEXT:    vmov r2, s4
+; CHECK-NEXT:    vmov r3, s0
+; CHECK-NEXT:    vmov r0, s5
+; CHECK-NEXT:    vmov r1, s1
+; CHECK-NEXT:    vmov r4, s2
+; CHECK-NEXT:    adds.w lr, r3, r2
+; CHECK-NEXT:    vmov r2, s6
+; CHECK-NEXT:    adc.w r12, r1, r0
+; CHECK-NEXT:    subs.w r3, lr, r3
+; CHECK-NEXT:    sbcs.w r1, r12, r1
+; CHECK-NEXT:    vmov r3, s3
+; CHECK-NEXT:    mov.w r1, #0
+; CHECK-NEXT:    mov.w r0, #0
+; CHECK-NEXT:    it lo
+; CHECK-NEXT:    movlo r1, #1
+; CHECK-NEXT:    cmp r1, #0
+; CHECK-NEXT:    csetm r1, ne
+; CHECK-NEXT:    vmov.32 q0[0], lr
+; CHECK-NEXT:    vmov.32 q2[0], r1
+; CHECK-NEXT:    vmov.32 q0[1], r12
+; CHECK-NEXT:    vmov.32 q2[1], r1
+; CHECK-NEXT:    vmov r1, s7
+; CHECK-NEXT:    adds r2, r2, r4
+; CHECK-NEXT:    vmov.32 q0[2], r2
+; CHECK-NEXT:    adcs r1, r3
+; CHECK-NEXT:    subs r4, r2, r4
+; CHECK-NEXT:    sbcs.w r3, r1, r3
+; CHECK-NEXT:    it lo
+; CHECK-NEXT:    movlo r0, #1
+; CHECK-NEXT:    cmp r0, #0
+; CHECK-NEXT:    vmov.32 q0[3], r1
+; CHECK-NEXT:    csetm r0, ne
+; CHECK-NEXT:    vmov.32 q2[2], r0
+; CHECK-NEXT:    vmov.32 q2[3], r0
+; CHECK-NEXT:    vorr q0, q0, q2
+; CHECK-NEXT:    pop {r4, pc}
+entry:
+  %0 = call <2 x i64> @llvm.uadd.sat.v2i64(<2 x i64> %src1, <2 x i64> %src2)
+  ret <2 x i64> %0
+}
+
+
+define arm_aapcs_vfpcc <16 x i8> @ssub_int8_t(<16 x i8> %src1, <16 x i8> %src2) {
+; CHECK-LABEL: ssub_int8_t:
+; CHECK:       @ %bb.0: @ %entry
+; CHECK-NEXT:    .vsave {d8, d9}
+; CHECK-NEXT:    vpush {d8, d9}
+; CHECK-NEXT:    vsub.i8 q2, q0, q1
+; CHECK-NEXT:    vmov.i8 q3, #0x80
+; CHECK-NEXT:    vcmp.s8 lt, q2, zr
+; CHECK-NEXT:    vmov.i8 q4, #0x7f
+; CHECK-NEXT:    vpsel q3, q4, q3
+; CHECK-NEXT:    vcmp.s8 gt, q0, q2
+; CHECK-NEXT:    vmrs r0, p0
+; CHECK-NEXT:    vcmp.s8 gt, q1, zr
+; CHECK-NEXT:    vmrs r1, p0
+; CHECK-NEXT:    eors r0, r1
+; CHECK-NEXT:    vmsr p0, r0
+; CHECK-NEXT:    vpsel q0, q3, q2
+; CHECK-NEXT:    vpop {d8, d9}
+; CHECK-NEXT:    bx lr
+entry:
+  %0 = call <16 x i8> @llvm.ssub.sat.v16i8(<16 x i8> %src1, <16 x i8> %src2)
+  ret <16 x i8> %0
+}
+
+define arm_aapcs_vfpcc <8 x i16> @ssub_int16_t(<8 x i16> %src1, <8 x i16> %src2) {
+; CHECK-LABEL: ssub_int16_t:
+; CHECK:       @ %bb.0: @ %entry
+; CHECK-NEXT:    .vsave {d8, d9}
+; CHECK-NEXT:    vpush {d8, d9}
+; CHECK-NEXT:    vsub.i16 q2, q0, q1
+; CHECK-NEXT:    vmov.i16 q3, #0x8000
+; CHECK-NEXT:    vcmp.s16 lt, q2, zr
+; CHECK-NEXT:    vmvn.i16 q4, #0x8000
+; CHECK-NEXT:    vpsel q3, q4, q3
+; CHECK-NEXT:    vcmp.s16 gt, q0, q2
+; CHECK-NEXT:    vmrs r0, p0
+; CHECK-NEXT:    vcmp.s16 gt, q1, zr
+; CHECK-NEXT:    vmrs r1, p0
+; CHECK-NEXT:    eors r0, r1
+; CHECK-NEXT:    vmsr p0, r0
+; CHECK-NEXT:    vpsel q0, q3, q2
+; CHECK-NEXT:    vpop {d8, d9}
+; CHECK-NEXT:    bx lr
+entry:
+  %0 = call <8 x i16> @llvm.ssub.sat.v8i16(<8 x i16> %src1, <8 x i16> %src2)
+  ret <8 x i16> %0
+}
+
+define arm_aapcs_vfpcc <4 x i32> @ssub_int32_t(<4 x i32> %src1, <4 x i32> %src2) {
+; CHECK-LABEL: ssub_int32_t:
+; CHECK:       @ %bb.0: @ %entry
+; CHECK-NEXT:    .vsave {d8, d9}
+; CHECK-NEXT:    vpush {d8, d9}
+; CHECK-NEXT:    vsub.i32 q2, q0, q1
+; CHECK-NEXT:    vmov.i32 q3, #0x80000000
+; CHECK-NEXT:    vcmp.s32 lt, q2, zr
+; CHECK-NEXT:    vmvn.i32 q4, #0x80000000
+; CHECK-NEXT:    vpsel q3, q4, q3
+; CHECK-NEXT:    vcmp.s32 gt, q0, q2
+; CHECK-NEXT:    vmrs r0, p0
+; CHECK-NEXT:    vcmp.s32 gt, q1, zr
+; CHECK-NEXT:    vmrs r1, p0
+; CHECK-NEXT:    eors r0, r1
+; CHECK-NEXT:    vmsr p0, r0
+; CHECK-NEXT:    vpsel q0, q3, q2
+; CHECK-NEXT:    vpop {d8, d9}
+; CHECK-NEXT:    bx lr
+entry:
+  %0 = call <4 x i32> @llvm.ssub.sat.v4i32(<4 x i32> %src1, <4 x i32> %src2)
+  ret <4 x i32> %0
+}
+
+define arm_aapcs_vfpcc <2 x i64> @ssub_int64_t(<2 x i64> %src1, <2 x i64> %src2) {
+; CHECK-LABEL: ssub_int64_t:
+; CHECK:       @ %bb.0: @ %entry
+; CHECK-NEXT:    .save {r4, r5, r6, lr}
+; CHECK-NEXT:    push {r4, r5, r6, lr}
+; CHECK-NEXT:    .vsave {d8, d9}
+; CHECK-NEXT:    vpush {d8, d9}
+; CHECK-NEXT:    vmov r2, s4
+; CHECK-NEXT:    movs r0, #0
+; CHECK-NEXT:    vmov lr, s5
+; CHECK-NEXT:    vmov r12, s7
+; CHECK-NEXT:    vmov r5, s0
+; CHECK-NEXT:    vmov r4, s1
+; CHECK-NEXT:    rsbs r3, r2, #0
+; CHECK-NEXT:    sbcs.w r3, r0, lr
+; CHECK-NEXT:    mov.w r3, #0
+; CHECK-NEXT:    it lt
+; CHECK-NEXT:    movlt r3, #1
+; CHECK-NEXT:    cmp r3, #0
+; CHECK-NEXT:    csetm r3, ne
+; CHECK-NEXT:    vmov.32 q2[0], r3
+; CHECK-NEXT:    vmov.32 q2[1], r3
+; CHECK-NEXT:    vmov r3, s6
+; CHECK-NEXT:    rsbs r1, r3, #0
+; CHECK-NEXT:    sbcs.w r1, r0, r12
+; CHECK-NEXT:    mov.w r1, #0
+; CHECK-NEXT:    it lt
+; CHECK-NEXT:    movlt r1, #1
+; CHECK-NEXT:    cmp r1, #0
+; CHECK-NEXT:    csetm r1, ne
+; CHECK-NEXT:    subs r6, r5, r2
+; CHECK-NEXT:    vmov.32 q2[2], r1
+; CHECK-NEXT:    vmov.32 q2[3], r1
+; CHECK-NEXT:    sbc.w r1, r4, lr
+; CHECK-NEXT:    subs r5, r6, r5
+; CHECK-NEXT:    sbcs.w r5, r1, r4
+; CHECK-NEXT:    vmov r4, s2
+; CHECK-NEXT:    mov.w r5, #0
+; CHECK-NEXT:    it lt
+; CHECK-NEXT:    movlt r5, #1
+; CHECK-NEXT:    cmp r5, #0
+; CHECK-NEXT:    csetm r5, ne
+; CHECK-NEXT:    vmov.32 q1[0], r5
+; CHECK-NEXT:    vmov.32 q1[1], r5
+; CHECK-NEXT:    vmov r5, s3
+; CHECK-NEXT:    subs r3, r4, r3
+; CHECK-NEXT:    sbc.w r2, r5, r12
+; CHECK-NEXT:    subs r4, r3, r4
+; CHECK-NEXT:    sbcs.w r5, r2, r5
+; CHECK-NEXT:    it lt
+; CHECK-NEXT:    movlt r0, #1
+; CHECK-NEXT:    cmp r0, #0
+; CHECK-NEXT:    csetm r0, ne
+; CHECK-NEXT:    vmov.32 q1[2], r0
+; CHECK-NEXT:    vmov.32 q1[3], r0
+; CHECK-NEXT:    asrs r0, r1, #31
+; CHECK-NEXT:    veor q0, q2, q1
+; CHECK-NEXT:    vmov.32 q2[0], r0
+; CHECK-NEXT:    vmov.32 q2[1], r0
+; CHECK-NEXT:    asrs r0, r2, #31
+; CHECK-NEXT:    vmov.32 q2[2], r0
+; CHECK-NEXT:    vmov.32 q1[0], r6
+; CHECK-NEXT:    vmov.32 q2[3], r0
+; CHECK-NEXT:    adr r0, .LCPI11_0
+; CHECK-NEXT:    vldrw.u32 q3, [r0]
+; CHECK-NEXT:    adr r0, .LCPI11_1
+; CHECK-NEXT:    vldrw.u32 q4, [r0]
+; CHECK-NEXT:    vmov.32 q1[1], r1
+; CHECK-NEXT:    vmov.32 q1[2], r3
+; CHECK-NEXT:    vbic q3, q3, q2
+; CHECK-NEXT:    vand q2, q4, q2
+; CHECK-NEXT:    vmov.32 q1[3], r2
+; CHECK-NEXT:    vorr q2, q2, q3
+; CHECK-NEXT:    vbic q1, q1, q0
+; CHECK-NEXT:    vand q0, q2, q0
+; CHECK-NEXT:    vorr q0, q0, q1
+; CHECK-NEXT:    vpop {d8, d9}
+; CHECK-NEXT:    pop {r4, r5, r6, pc}
+; CHECK-NEXT:    .p2align 4
+; CHECK-NEXT:  @ %bb.1:
+; CHECK-NEXT:  .LCPI11_0:
+; CHECK-NEXT:    .long 0 @ 0x0
+; CHECK-NEXT:    .long 2147483648 @ 0x80000000
+; CHECK-NEXT:    .long 0 @ 0x0
+; CHECK-NEXT:    .long 2147483648 @ 0x80000000
+; CHECK-NEXT:  .LCPI11_1:
+; CHECK-NEXT:    .long 4294967295 @ 0xffffffff
+; CHECK-NEXT:    .long 2147483647 @ 0x7fffffff
+; CHECK-NEXT:    .long 4294967295 @ 0xffffffff
+; CHECK-NEXT:    .long 2147483647 @ 0x7fffffff
+entry:
+  %0 = call <2 x i64> @llvm.ssub.sat.v2i64(<2 x i64> %src1, <2 x i64> %src2)
+  ret <2 x i64> %0
+}
+
+define arm_aapcs_vfpcc <16 x i8> @usub_int8_t(<16 x i8> %src1, <16 x i8> %src2) {
+; CHECK-LABEL: usub_int8_t:
+; CHECK:       @ %bb.0: @ %entry
+; CHECK-NEXT:    vmax.u8 q0, q0, q1
+; CHECK-NEXT:    vsub.i8 q0, q0, q1
+; CHECK-NEXT:    bx lr
+entry:
+  %0 = call <16 x i8> @llvm.usub.sat.v16i8(<16 x i8> %src1, <16 x i8> %src2)
+  ret <16 x i8> %0
+}
+
+define arm_aapcs_vfpcc <8 x i16> @usub_int16_t(<8 x i16> %src1, <8 x i16> %src2) {
+; CHECK-LABEL: usub_int16_t:
+; CHECK:       @ %bb.0: @ %entry
+; CHECK-NEXT:    vmax.u16 q0, q0, q1
+; CHECK-NEXT:    vsub.i16 q0, q0, q1
+; CHECK-NEXT:    bx lr
+entry:
+  %0 = call <8 x i16> @llvm.usub.sat.v8i16(<8 x i16> %src1, <8 x i16> %src2)
+  ret <8 x i16> %0
+}
+
+define arm_aapcs_vfpcc <4 x i32> @usub_int32_t(<4 x i32> %src1, <4 x i32> %src2) {
+; CHECK-LABEL: usub_int32_t:
+; CHECK:       @ %bb.0: @ %entry
+; CHECK-NEXT:    vmax.u32 q0, q0, q1
+; CHECK-NEXT:    vsub.i32 q0, q0, q1
+; CHECK-NEXT:    bx lr
+entry:
+  %0 = call <4 x i32> @llvm.usub.sat.v4i32(<4 x i32> %src1, <4 x i32> %src2)
+  ret <4 x i32> %0
+}
+
+define arm_aapcs_vfpcc <2 x i64> @usub_int64_t(<2 x i64> %src1, <2 x i64> %src2) {
+; CHECK-LABEL: usub_int64_t:
+; CHECK:       @ %bb.0: @ %entry
+; CHECK-NEXT:    .save {r4, lr}
+; CHECK-NEXT:    push {r4, lr}
+; CHECK-NEXT:    vmov r2, s4
+; CHECK-NEXT:    vmov r3, s0
+; CHECK-NEXT:    vmov r0, s5
+; CHECK-NEXT:    vmov r1, s1
+; CHECK-NEXT:    vmov r4, s2
+; CHECK-NEXT:    subs.w lr, r3, r2
+; CHECK-NEXT:    vmov r2, s6
+; CHECK-NEXT:    sbc.w r12, r1, r0
+; CHECK-NEXT:    subs.w r3, r3, lr
+; CHECK-NEXT:    sbcs.w r1, r1, r12
+; CHECK-NEXT:    vmov r3, s3
+; CHECK-NEXT:    mov.w r1, #0
+; CHECK-NEXT:    mov.w r0, #0
+; CHECK-NEXT:    it lo
+; CHECK-NEXT:    movlo r1, #1
+; CHECK-NEXT:    cmp r1, #0
+; CHECK-NEXT:    csetm r1, ne
+; CHECK-NEXT:    vmov.32 q0[0], lr
+; CHECK-NEXT:    vmov.32 q2[0], r1
+; CHECK-NEXT:    vmov.32 q0[1], r12
+; CHECK-NEXT:    vmov.32 q2[1], r1
+; CHECK-NEXT:    vmov r1, s7
+; CHECK-NEXT:    subs r2, r4, r2
+; CHECK-NEXT:    vmov.32 q0[2], r2
+; CHECK-NEXT:    sbc.w r1, r3, r1
+; CHECK-NEXT:    subs r4, r4, r2
+; CHECK-NEXT:    sbcs r3, r1
+; CHECK-NEXT:    it lo
+; CHECK-NEXT:    movlo r0, #1
+; CHECK-NEXT:    cmp r0, #0
+; CHECK-NEXT:    vmov.32 q0[3], r1
+; CHECK-NEXT:    csetm r0, ne
+; CHECK-NEXT:    vmov.32 q2[2], r0
+; CHECK-NEXT:    vmov.32 q2[3], r0
+; CHECK-NEXT:    vbic q0, q0, q2
+; CHECK-NEXT:    pop {r4, pc}
+entry:
+  %0 = call <2 x i64> @llvm.usub.sat.v2i64(<2 x i64> %src1, <2 x i64> %src2)
+  ret <2 x i64> %0
+}
+
+
+declare <16 x i8> @llvm.sadd.sat.v16i8(<16 x i8> %src1, <16 x i8> %src2)
+declare <8 x i16> @llvm.sadd.sat.v8i16(<8 x i16> %src1, <8 x i16> %src2)
+declare <4 x i32> @llvm.sadd.sat.v4i32(<4 x i32> %src1, <4 x i32> %src2)
+declare <2 x i64> @llvm.sadd.sat.v2i64(<2 x i64> %src1, <2 x i64> %src2)
+declare <16 x i8> @llvm.uadd.sat.v16i8(<16 x i8> %src1, <16 x i8> %src2)
+declare <8 x i16> @llvm.uadd.sat.v8i16(<8 x i16> %src1, <8 x i16> %src2)
+declare <4 x i32> @llvm.uadd.sat.v4i32(<4 x i32> %src1, <4 x i32> %src2)
+declare <2 x i64> @llvm.uadd.sat.v2i64(<2 x i64> %src1, <2 x i64> %src2)
+declare <16 x i8> @llvm.ssub.sat.v16i8(<16 x i8> %src1, <16 x i8> %src2)
+declare <8 x i16> @llvm.ssub.sat.v8i16(<8 x i16> %src1, <8 x i16> %src2)
+declare <4 x i32> @llvm.ssub.sat.v4i32(<4 x i32> %src1, <4 x i32> %src2)
+declare <2 x i64> @llvm.ssub.sat.v2i64(<2 x i64> %src1, <2 x i64> %src2)
+declare <16 x i8> @llvm.usub.sat.v16i8(<16 x i8> %src1, <16 x i8> %src2)
+declare <8 x i16> @llvm.usub.sat.v8i16(<8 x i16> %src1, <8 x i16> %src2)
+declare <4 x i32> @llvm.usub.sat.v4i32(<4 x i32> %src1, <4 x i32> %src2)
+declare <2 x i64> @llvm.usub.sat.v2i64(<2 x i64> %src1, <2 x i64> %src2)
-- 
2.11.4.GIT