[clang] 91cb13f - [SveEmitter] Add builtins for svqadd, svqsub and svdot

Sander de Smalen via cfe-commits cfe-commits at lists.llvm.org
Thu May 7 04:29:09 PDT 2020


Author: Sander de Smalen
Date: 2020-05-07T12:28:18+01:00
New Revision: 91cb13f90d0f066a02c2a79db194624f02896fa6

URL: https://github.com/llvm/llvm-project/commit/91cb13f90d0f066a02c2a79db194624f02896fa6
DIFF: https://github.com/llvm/llvm-project/commit/91cb13f90d0f066a02c2a79db194624f02896fa6.diff

LOG: [SveEmitter] Add builtins for svqadd, svqsub and svdot

This patch adds builtins for saturating add/sub instructions:
- svqadd, svqadd_n
- svqsub, svqsub_n

and builtins for dot product instructions:
- svdot, svdot_lane

Added: 
    clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_qadd.c
    clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_qsub.c

Modified: 
    clang/include/clang/Basic/arm_sve.td
    clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_dot.c
    clang/utils/TableGen/SveEmitter.cpp

Removed: 
    


################################################################################
diff  --git a/clang/include/clang/Basic/arm_sve.td b/clang/include/clang/Basic/arm_sve.td
index 32273c3250ae..4c73c98bcb52 100644
--- a/clang/include/clang/Basic/arm_sve.td
+++ b/clang/include/clang/Basic/arm_sve.td
@@ -67,6 +67,7 @@
 // s: scalar of element type
 // a: scalar of element type (splat to vector type)
 // R: scalar of 1/2 width element type (splat to vector type)
+// r: scalar of 1/4 width element type (splat to vector type)
 // e: 1/2 width unsigned elements, 2x element count
 // h: 1/2 width elements, 2x element count
 // q: 1/4 width elements, 4x element count
@@ -675,6 +676,25 @@ defm SVMLA : SInstZPZZZ<"svmla", "csilUcUsUiUl", "aarch64_sve_mla">;
 defm SVMLS : SInstZPZZZ<"svmls", "csilUcUsUiUl", "aarch64_sve_mls">;
 defm SVMSB : SInstZPZZZ<"svmsb", "csilUcUsUiUl", "aarch64_sve_msb">;
 
+//------------------------------------------------------------------------------
+
+def SVDOT_S    : SInst<"svdot[_{0}]",    "ddqq", "il",       MergeNone, "aarch64_sve_sdot">;
+def SVDOT_U    : SInst<"svdot[_{0}]",    "ddqq", "UiUl",     MergeNone, "aarch64_sve_udot">;
+def SVQADD_S   : SInst<"svqadd[_{d}]",   "ddd",  "csil",     MergeNone, "aarch64_sve_sqadd_x">;
+def SVQADD_U   : SInst<"svqadd[_{d}]",   "ddd",  "UcUsUiUl", MergeNone, "aarch64_sve_uqadd_x">;
+def SVQSUB_S   : SInst<"svqsub[_{d}]",   "ddd",  "csil",     MergeNone, "aarch64_sve_sqsub_x">;
+def SVQSUB_U   : SInst<"svqsub[_{d}]",   "ddd",  "UcUsUiUl", MergeNone, "aarch64_sve_uqsub_x">;
+
+def SVDOT_N_S  : SInst<"svdot[_n_{0}]",  "ddqr", "il",       MergeNone, "aarch64_sve_sdot">;
+def SVDOT_N_U  : SInst<"svdot[_n_{0}]",  "ddqr", "UiUl",     MergeNone, "aarch64_sve_udot">;
+def SVQADD_N_S : SInst<"svqadd[_n_{d}]", "dda",  "csil",     MergeNone, "aarch64_sve_sqadd_x">;
+def SVQADD_N_U : SInst<"svqadd[_n_{d}]", "dda",  "UcUsUiUl", MergeNone, "aarch64_sve_uqadd_x">;
+def SVQSUB_N_S : SInst<"svqsub[_n_{d}]", "dda",  "csil",     MergeNone, "aarch64_sve_sqsub_x">;
+def SVQSUB_N_U : SInst<"svqsub[_n_{d}]", "dda",  "UcUsUiUl", MergeNone, "aarch64_sve_uqsub_x">;
+
+def SVDOT_LANE_S : SInst<"svdot_lane[_{d}]",  "ddqqi",  "il",   MergeNone, "aarch64_sve_sdot_lane", [], [ImmCheck<3, ImmCheckLaneIndexDot, 2>]>;
+def SVDOT_LANE_U : SInst<"svdot_lane[_{d}]",  "ddqqi",  "UiUl", MergeNone, "aarch64_sve_udot_lane", [], [ImmCheck<3, ImmCheckLaneIndexDot, 2>]>;
+
 ////////////////////////////////////////////////////////////////////////////////
 // Logical operations
 
@@ -1180,11 +1200,6 @@ defm SVQINCW_U : SInst_SAT2<"svqincw", "aarch64_sve_uqincw", UnsignedWord>;
 defm SVQINCD_S : SInst_SAT2<"svqincd", "aarch64_sve_sqincd", SignedDoubleWord>;
 defm SVQINCD_U : SInst_SAT2<"svqincd", "aarch64_sve_uqincd", UnsignedDoubleWord>;
 
-////////////////////////////////////////////////////////////////////////////////
-// Integer arithmetic
-def SVDOT_LANE_S : SInst<"svdot_lane[_{d}]",  "ddqqi",  "il",   MergeNone, "aarch64_sve_sdot_lane", [], [ImmCheck<3, ImmCheckLaneIndexDot, 2>]>;
-def SVDOT_LANE_U : SInst<"svdot_lane[_{d}]",  "ddqqi",  "UiUl", MergeNone, "aarch64_sve_udot_lane", [], [ImmCheck<3, ImmCheckLaneIndexDot, 2>]>;
-
 ////////////////////////////////////////////////////////////////////////////////
 // SVE2 WhileGE/GT
 let ArchGuard = "defined(__ARM_FEATURE_SVE2)" in {

diff  --git a/clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_dot.c b/clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_dot.c
index 94e67604fae2..fc12bb672490 100644
--- a/clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_dot.c
+++ b/clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_dot.c
@@ -10,6 +10,74 @@
 #define SVE_ACLE_FUNC(A1,A2,A3,A4) A1##A2##A3##A4
 #endif
 
+svint32_t test_svdot_s32(svint32_t op1, svint8_t op2, svint8_t op3)
+{
+  // CHECK-LABEL: test_svdot_s32
+  // CHECK: %[[INTRINSIC:.*]] = call <vscale x 4 x i32> @llvm.aarch64.sve.sdot.nxv4i32(<vscale x 4 x i32> %op1, <vscale x 16 x i8> %op2, <vscale x 16 x i8> %op3)
+  // CHECK: ret <vscale x 4 x i32> %[[INTRINSIC]]
+  return SVE_ACLE_FUNC(svdot,_s32,,)(op1, op2, op3);
+}
+
+svint64_t test_svdot_s64(svint64_t op1, svint16_t op2, svint16_t op3)
+{
+  // CHECK-LABEL: test_svdot_s64
+  // CHECK: %[[INTRINSIC:.*]] = call <vscale x 2 x i64> @llvm.aarch64.sve.sdot.nxv2i64(<vscale x 2 x i64> %op1, <vscale x 8 x i16> %op2, <vscale x 8 x i16> %op3)
+  // CHECK: ret <vscale x 2 x i64> %[[INTRINSIC]]
+  return SVE_ACLE_FUNC(svdot,_s64,,)(op1, op2, op3);
+}
+
+svuint32_t test_svdot_u32(svuint32_t op1, svuint8_t op2, svuint8_t op3)
+{
+  // CHECK-LABEL: test_svdot_u32
+  // CHECK: %[[INTRINSIC:.*]] = call <vscale x 4 x i32> @llvm.aarch64.sve.udot.nxv4i32(<vscale x 4 x i32> %op1, <vscale x 16 x i8> %op2, <vscale x 16 x i8> %op3)
+  // CHECK: ret <vscale x 4 x i32> %[[INTRINSIC]]
+  return SVE_ACLE_FUNC(svdot,_u32,,)(op1, op2, op3);
+}
+
+svuint64_t test_svdot_u64(svuint64_t op1, svuint16_t op2, svuint16_t op3)
+{
+  // CHECK-LABEL: test_svdot_u64
+  // CHECK: %[[INTRINSIC:.*]] = call <vscale x 2 x i64> @llvm.aarch64.sve.udot.nxv2i64(<vscale x 2 x i64> %op1, <vscale x 8 x i16> %op2, <vscale x 8 x i16> %op3)
+  // CHECK: ret <vscale x 2 x i64> %[[INTRINSIC]]
+  return SVE_ACLE_FUNC(svdot,_u64,,)(op1, op2, op3);
+}
+
+svint32_t test_svdot_n_s32(svint32_t op1, svint8_t op2, int8_t op3)
+{
+  // CHECK-LABEL: test_svdot_n_s32
+  // CHECK: %[[DUP:.*]] = call <vscale x 16 x i8> @llvm.aarch64.sve.dup.x.nxv16i8(i8 %op3)
+  // CHECK: %[[INTRINSIC:.*]] = call <vscale x 4 x i32> @llvm.aarch64.sve.sdot.nxv4i32(<vscale x 4 x i32> %op1, <vscale x 16 x i8> %op2, <vscale x 16 x i8> %[[DUP]])
+  // CHECK: ret <vscale x 4 x i32> %[[INTRINSIC]]
+  return SVE_ACLE_FUNC(svdot,_n_s32,,)(op1, op2, op3);
+}
+
+svint64_t test_svdot_n_s64(svint64_t op1, svint16_t op2, int16_t op3)
+{
+  // CHECK-LABEL: test_svdot_n_s64
+  // CHECK: %[[DUP:.*]] = call <vscale x 8 x i16> @llvm.aarch64.sve.dup.x.nxv8i16(i16 %op3)
+  // CHECK: %[[INTRINSIC:.*]] = call <vscale x 2 x i64> @llvm.aarch64.sve.sdot.nxv2i64(<vscale x 2 x i64> %op1, <vscale x 8 x i16> %op2, <vscale x 8 x i16> %[[DUP]])
+  // CHECK: ret <vscale x 2 x i64> %[[INTRINSIC]]
+  return SVE_ACLE_FUNC(svdot,_n_s64,,)(op1, op2, op3);
+}
+
+svuint32_t test_svdot_n_u32(svuint32_t op1, svuint8_t op2, uint8_t op3)
+{
+  // CHECK-LABEL: test_svdot_n_u32
+  // CHECK: %[[DUP:.*]] = call <vscale x 16 x i8> @llvm.aarch64.sve.dup.x.nxv16i8(i8 %op3)
+  // CHECK: %[[INTRINSIC:.*]] = call <vscale x 4 x i32> @llvm.aarch64.sve.udot.nxv4i32(<vscale x 4 x i32> %op1, <vscale x 16 x i8> %op2, <vscale x 16 x i8> %[[DUP]])
+  // CHECK: ret <vscale x 4 x i32> %[[INTRINSIC]]
+  return SVE_ACLE_FUNC(svdot,_n_u32,,)(op1, op2, op3);
+}
+
+svuint64_t test_svdot_n_u64(svuint64_t op1, svuint16_t op2, uint16_t op3)
+{
+  // CHECK-LABEL: test_svdot_n_u64
+  // CHECK: %[[DUP:.*]] = call <vscale x 8 x i16> @llvm.aarch64.sve.dup.x.nxv8i16(i16 %op3)
+  // CHECK: %[[INTRINSIC:.*]] = call <vscale x 2 x i64> @llvm.aarch64.sve.udot.nxv2i64(<vscale x 2 x i64> %op1, <vscale x 8 x i16> %op2, <vscale x 8 x i16> %[[DUP]])
+  // CHECK: ret <vscale x 2 x i64> %[[INTRINSIC]]
+  return SVE_ACLE_FUNC(svdot,_n_u64,,)(op1, op2, op3);
+}
+
 svint32_t test_svdot_lane_s32(svint32_t op1, svint8_t op2, svint8_t op3)
 {
   // CHECK-LABEL: test_svdot_lane_s32

diff  --git a/clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_qadd.c b/clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_qadd.c
new file mode 100644
index 000000000000..9728907f2438
--- /dev/null
+++ b/clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_qadd.c
@@ -0,0 +1,147 @@
+// RUN: %clang_cc1 -D__ARM_FEATURE_SVE -triple aarch64-none-linux-gnu -target-feature +sve -fallow-half-arguments-and-returns -S -O1 -Werror -Wall -emit-llvm -o - %s | FileCheck %s
+// RUN: %clang_cc1 -D__ARM_FEATURE_SVE -DSVE_OVERLOADED_FORMS -triple aarch64-none-linux-gnu -target-feature +sve -fallow-half-arguments-and-returns -S -O1 -Werror -Wall -emit-llvm -o - %s | FileCheck %s
+
+#include <arm_sve.h>
+
+#ifdef SVE_OVERLOADED_FORMS
+// A simple used,unused... macro, long enough to represent any SVE builtin.
+#define SVE_ACLE_FUNC(A1,A2_UNUSED,A3,A4_UNUSED) A1##A3
+#else
+#define SVE_ACLE_FUNC(A1,A2,A3,A4) A1##A2##A3##A4
+#endif
+
+svint8_t test_svqadd_s8(svint8_t op1, svint8_t op2)
+{
+  // CHECK-LABEL: test_svqadd_s8
+  // CHECK: %[[INTRINSIC:.*]] = call <vscale x 16 x i8> @llvm.aarch64.sve.sqadd.x.nxv16i8(<vscale x 16 x i8> %op1, <vscale x 16 x i8> %op2)
+  // CHECK: ret <vscale x 16 x i8> %[[INTRINSIC]]
+  return SVE_ACLE_FUNC(svqadd,_s8,,)(op1, op2);
+}
+
+svint16_t test_svqadd_s16(svint16_t op1, svint16_t op2)
+{
+  // CHECK-LABEL: test_svqadd_s16
+  // CHECK: %[[INTRINSIC:.*]] = call <vscale x 8 x i16> @llvm.aarch64.sve.sqadd.x.nxv8i16(<vscale x 8 x i16> %op1, <vscale x 8 x i16> %op2)
+  // CHECK: ret <vscale x 8 x i16> %[[INTRINSIC]]
+  return SVE_ACLE_FUNC(svqadd,_s16,,)(op1, op2);
+}
+
+svint32_t test_svqadd_s32(svint32_t op1, svint32_t op2)
+{
+  // CHECK-LABEL: test_svqadd_s32
+  // CHECK: %[[INTRINSIC:.*]] = call <vscale x 4 x i32> @llvm.aarch64.sve.sqadd.x.nxv4i32(<vscale x 4 x i32> %op1, <vscale x 4 x i32> %op2)
+  // CHECK: ret <vscale x 4 x i32> %[[INTRINSIC]]
+  return SVE_ACLE_FUNC(svqadd,_s32,,)(op1, op2);
+}
+
+svint64_t test_svqadd_s64(svint64_t op1, svint64_t op2)
+{
+  // CHECK-LABEL: test_svqadd_s64
+  // CHECK: %[[INTRINSIC:.*]] = call <vscale x 2 x i64> @llvm.aarch64.sve.sqadd.x.nxv2i64(<vscale x 2 x i64> %op1, <vscale x 2 x i64> %op2)
+  // CHECK: ret <vscale x 2 x i64> %[[INTRINSIC]]
+  return SVE_ACLE_FUNC(svqadd,_s64,,)(op1, op2);
+}
+
+svuint8_t test_svqadd_u8(svuint8_t op1, svuint8_t op2)
+{
+  // CHECK-LABEL: test_svqadd_u8
+  // CHECK: %[[INTRINSIC:.*]] = call <vscale x 16 x i8> @llvm.aarch64.sve.uqadd.x.nxv16i8(<vscale x 16 x i8> %op1, <vscale x 16 x i8> %op2)
+  // CHECK: ret <vscale x 16 x i8> %[[INTRINSIC]]
+  return SVE_ACLE_FUNC(svqadd,_u8,,)(op1, op2);
+}
+
+svuint16_t test_svqadd_u16(svuint16_t op1, svuint16_t op2)
+{
+  // CHECK-LABEL: test_svqadd_u16
+  // CHECK: %[[INTRINSIC:.*]] = call <vscale x 8 x i16> @llvm.aarch64.sve.uqadd.x.nxv8i16(<vscale x 8 x i16> %op1, <vscale x 8 x i16> %op2)
+  // CHECK: ret <vscale x 8 x i16> %[[INTRINSIC]]
+  return SVE_ACLE_FUNC(svqadd,_u16,,)(op1, op2);
+}
+
+svuint32_t test_svqadd_u32(svuint32_t op1, svuint32_t op2)
+{
+  // CHECK-LABEL: test_svqadd_u32
+  // CHECK: %[[INTRINSIC:.*]] = call <vscale x 4 x i32> @llvm.aarch64.sve.uqadd.x.nxv4i32(<vscale x 4 x i32> %op1, <vscale x 4 x i32> %op2)
+  // CHECK: ret <vscale x 4 x i32> %[[INTRINSIC]]
+  return SVE_ACLE_FUNC(svqadd,_u32,,)(op1, op2);
+}
+
+svuint64_t test_svqadd_u64(svuint64_t op1, svuint64_t op2)
+{
+  // CHECK-LABEL: test_svqadd_u64
+  // CHECK: %[[INTRINSIC:.*]] = call <vscale x 2 x i64> @llvm.aarch64.sve.uqadd.x.nxv2i64(<vscale x 2 x i64> %op1, <vscale x 2 x i64> %op2)
+  // CHECK: ret <vscale x 2 x i64> %[[INTRINSIC]]
+  return SVE_ACLE_FUNC(svqadd,_u64,,)(op1, op2);
+}
+
+svint8_t test_svqadd_n_s8(svint8_t op1, int8_t op2)
+{
+  // CHECK-LABEL: test_svqadd_n_s8
+  // CHECK: %[[DUP:.*]] = call <vscale x 16 x i8> @llvm.aarch64.sve.dup.x.nxv16i8(i8 %op2)
+  // CHECK: %[[INTRINSIC:.*]] = call <vscale x 16 x i8> @llvm.aarch64.sve.sqadd.x.nxv16i8(<vscale x 16 x i8> %op1, <vscale x 16 x i8> %[[DUP]])
+  // CHECK: ret <vscale x 16 x i8> %[[INTRINSIC]]
+  return SVE_ACLE_FUNC(svqadd,_n_s8,,)(op1, op2);
+}
+
+svint16_t test_svqadd_n_s16(svint16_t op1, int16_t op2)
+{
+  // CHECK-LABEL: test_svqadd_n_s16
+  // CHECK: %[[DUP:.*]] = call <vscale x 8 x i16> @llvm.aarch64.sve.dup.x.nxv8i16(i16 %op2)
+  // CHECK: %[[INTRINSIC:.*]] = call <vscale x 8 x i16> @llvm.aarch64.sve.sqadd.x.nxv8i16(<vscale x 8 x i16> %op1, <vscale x 8 x i16> %[[DUP]])
+  // CHECK: ret <vscale x 8 x i16> %[[INTRINSIC]]
+  return SVE_ACLE_FUNC(svqadd,_n_s16,,)(op1, op2);
+}
+
+svint32_t test_svqadd_n_s32(svint32_t op1, int32_t op2)
+{
+  // CHECK-LABEL: test_svqadd_n_s32
+  // CHECK: %[[DUP:.*]] = call <vscale x 4 x i32> @llvm.aarch64.sve.dup.x.nxv4i32(i32 %op2)
+  // CHECK: %[[INTRINSIC:.*]] = call <vscale x 4 x i32> @llvm.aarch64.sve.sqadd.x.nxv4i32(<vscale x 4 x i32> %op1, <vscale x 4 x i32> %[[DUP]])
+  // CHECK: ret <vscale x 4 x i32> %[[INTRINSIC]]
+  return SVE_ACLE_FUNC(svqadd,_n_s32,,)(op1, op2);
+}
+
+svint64_t test_svqadd_n_s64(svint64_t op1, int64_t op2)
+{
+  // CHECK-LABEL: test_svqadd_n_s64
+  // CHECK: %[[DUP:.*]] = call <vscale x 2 x i64> @llvm.aarch64.sve.dup.x.nxv2i64(i64 %op2)
+  // CHECK: %[[INTRINSIC:.*]] = call <vscale x 2 x i64> @llvm.aarch64.sve.sqadd.x.nxv2i64(<vscale x 2 x i64> %op1, <vscale x 2 x i64> %[[DUP]])
+  // CHECK: ret <vscale x 2 x i64> %[[INTRINSIC]]
+  return SVE_ACLE_FUNC(svqadd,_n_s64,,)(op1, op2);
+}
+
+svuint8_t test_svqadd_n_u8(svuint8_t op1, uint8_t op2)
+{
+  // CHECK-LABEL: test_svqadd_n_u8
+  // CHECK: %[[DUP:.*]] = call <vscale x 16 x i8> @llvm.aarch64.sve.dup.x.nxv16i8(i8 %op2)
+  // CHECK: %[[INTRINSIC:.*]] = call <vscale x 16 x i8> @llvm.aarch64.sve.uqadd.x.nxv16i8(<vscale x 16 x i8> %op1, <vscale x 16 x i8> %[[DUP]])
+  // CHECK: ret <vscale x 16 x i8> %[[INTRINSIC]]
+  return SVE_ACLE_FUNC(svqadd,_n_u8,,)(op1, op2);
+}
+
+svuint16_t test_svqadd_n_u16(svuint16_t op1, uint16_t op2)
+{
+  // CHECK-LABEL: test_svqadd_n_u16
+  // CHECK: %[[DUP:.*]] = call <vscale x 8 x i16> @llvm.aarch64.sve.dup.x.nxv8i16(i16 %op2)
+  // CHECK: %[[INTRINSIC:.*]] = call <vscale x 8 x i16> @llvm.aarch64.sve.uqadd.x.nxv8i16(<vscale x 8 x i16> %op1, <vscale x 8 x i16> %[[DUP]])
+  // CHECK: ret <vscale x 8 x i16> %[[INTRINSIC]]
+  return SVE_ACLE_FUNC(svqadd,_n_u16,,)(op1, op2);
+}
+
+svuint32_t test_svqadd_n_u32(svuint32_t op1, uint32_t op2)
+{
+  // CHECK-LABEL: test_svqadd_n_u32
+  // CHECK: %[[DUP:.*]] = call <vscale x 4 x i32> @llvm.aarch64.sve.dup.x.nxv4i32(i32 %op2)
+  // CHECK: %[[INTRINSIC:.*]] = call <vscale x 4 x i32> @llvm.aarch64.sve.uqadd.x.nxv4i32(<vscale x 4 x i32> %op1, <vscale x 4 x i32> %[[DUP]])
+  // CHECK: ret <vscale x 4 x i32> %[[INTRINSIC]]
+  return SVE_ACLE_FUNC(svqadd,_n_u32,,)(op1, op2);
+}
+
+svuint64_t test_svqadd_n_u64(svuint64_t op1, uint64_t op2)
+{
+  // CHECK-LABEL: test_svqadd_n_u64
+  // CHECK: %[[DUP:.*]] = call <vscale x 2 x i64> @llvm.aarch64.sve.dup.x.nxv2i64(i64 %op2)
+  // CHECK: %[[INTRINSIC:.*]] = call <vscale x 2 x i64> @llvm.aarch64.sve.uqadd.x.nxv2i64(<vscale x 2 x i64> %op1, <vscale x 2 x i64> %[[DUP]])
+  // CHECK: ret <vscale x 2 x i64> %[[INTRINSIC]]
+  return SVE_ACLE_FUNC(svqadd,_n_u64,,)(op1, op2);
+}

diff  --git a/clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_qsub.c b/clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_qsub.c
new file mode 100644
index 000000000000..645e8b3dee8e
--- /dev/null
+++ b/clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_qsub.c
@@ -0,0 +1,147 @@
+// RUN: %clang_cc1 -D__ARM_FEATURE_SVE -triple aarch64-none-linux-gnu -target-feature +sve -fallow-half-arguments-and-returns -S -O1 -Werror -Wall -emit-llvm -o - %s | FileCheck %s
+// RUN: %clang_cc1 -D__ARM_FEATURE_SVE -DSVE_OVERLOADED_FORMS -triple aarch64-none-linux-gnu -target-feature +sve -fallow-half-arguments-and-returns -S -O1 -Werror -Wall -emit-llvm -o - %s | FileCheck %s
+
+#include <arm_sve.h>
+
+#ifdef SVE_OVERLOADED_FORMS
+// A simple used,unused... macro, long enough to represent any SVE builtin.
+#define SVE_ACLE_FUNC(A1,A2_UNUSED,A3,A4_UNUSED) A1##A3
+#else
+#define SVE_ACLE_FUNC(A1,A2,A3,A4) A1##A2##A3##A4
+#endif
+
+svint8_t test_svqsub_s8(svint8_t op1, svint8_t op2)
+{
+  // CHECK-LABEL: test_svqsub_s8
+  // CHECK: %[[INTRINSIC:.*]] = call <vscale x 16 x i8> @llvm.aarch64.sve.sqsub.x.nxv16i8(<vscale x 16 x i8> %op1, <vscale x 16 x i8> %op2)
+  // CHECK: ret <vscale x 16 x i8> %[[INTRINSIC]]
+  return SVE_ACLE_FUNC(svqsub,_s8,,)(op1, op2);
+}
+
+svint16_t test_svqsub_s16(svint16_t op1, svint16_t op2)
+{
+  // CHECK-LABEL: test_svqsub_s16
+  // CHECK: %[[INTRINSIC:.*]] = call <vscale x 8 x i16> @llvm.aarch64.sve.sqsub.x.nxv8i16(<vscale x 8 x i16> %op1, <vscale x 8 x i16> %op2)
+  // CHECK: ret <vscale x 8 x i16> %[[INTRINSIC]]
+  return SVE_ACLE_FUNC(svqsub,_s16,,)(op1, op2);
+}
+
+svint32_t test_svqsub_s32(svint32_t op1, svint32_t op2)
+{
+  // CHECK-LABEL: test_svqsub_s32
+  // CHECK: %[[INTRINSIC:.*]] = call <vscale x 4 x i32> @llvm.aarch64.sve.sqsub.x.nxv4i32(<vscale x 4 x i32> %op1, <vscale x 4 x i32> %op2)
+  // CHECK: ret <vscale x 4 x i32> %[[INTRINSIC]]
+  return SVE_ACLE_FUNC(svqsub,_s32,,)(op1, op2);
+}
+
+svint64_t test_svqsub_s64(svint64_t op1, svint64_t op2)
+{
+  // CHECK-LABEL: test_svqsub_s64
+  // CHECK: %[[INTRINSIC:.*]] = call <vscale x 2 x i64> @llvm.aarch64.sve.sqsub.x.nxv2i64(<vscale x 2 x i64> %op1, <vscale x 2 x i64> %op2)
+  // CHECK: ret <vscale x 2 x i64> %[[INTRINSIC]]
+  return SVE_ACLE_FUNC(svqsub,_s64,,)(op1, op2);
+}
+
+svuint8_t test_svqsub_u8(svuint8_t op1, svuint8_t op2)
+{
+  // CHECK-LABEL: test_svqsub_u8
+  // CHECK: %[[INTRINSIC:.*]] = call <vscale x 16 x i8> @llvm.aarch64.sve.uqsub.x.nxv16i8(<vscale x 16 x i8> %op1, <vscale x 16 x i8> %op2)
+  // CHECK: ret <vscale x 16 x i8> %[[INTRINSIC]]
+  return SVE_ACLE_FUNC(svqsub,_u8,,)(op1, op2);
+}
+
+svuint16_t test_svqsub_u16(svuint16_t op1, svuint16_t op2)
+{
+  // CHECK-LABEL: test_svqsub_u16
+  // CHECK: %[[INTRINSIC:.*]] = call <vscale x 8 x i16> @llvm.aarch64.sve.uqsub.x.nxv8i16(<vscale x 8 x i16> %op1, <vscale x 8 x i16> %op2)
+  // CHECK: ret <vscale x 8 x i16> %[[INTRINSIC]]
+  return SVE_ACLE_FUNC(svqsub,_u16,,)(op1, op2);
+}
+
+svuint32_t test_svqsub_u32(svuint32_t op1, svuint32_t op2)
+{
+  // CHECK-LABEL: test_svqsub_u32
+  // CHECK: %[[INTRINSIC:.*]] = call <vscale x 4 x i32> @llvm.aarch64.sve.uqsub.x.nxv4i32(<vscale x 4 x i32> %op1, <vscale x 4 x i32> %op2)
+  // CHECK: ret <vscale x 4 x i32> %[[INTRINSIC]]
+  return SVE_ACLE_FUNC(svqsub,_u32,,)(op1, op2);
+}
+
+svuint64_t test_svqsub_u64(svuint64_t op1, svuint64_t op2)
+{
+  // CHECK-LABEL: test_svqsub_u64
+  // CHECK: %[[INTRINSIC:.*]] = call <vscale x 2 x i64> @llvm.aarch64.sve.uqsub.x.nxv2i64(<vscale x 2 x i64> %op1, <vscale x 2 x i64> %op2)
+  // CHECK: ret <vscale x 2 x i64> %[[INTRINSIC]]
+  return SVE_ACLE_FUNC(svqsub,_u64,,)(op1, op2);
+}
+
+svint8_t test_svqsub_n_s8(svint8_t op1, int8_t op2)
+{
+  // CHECK-LABEL: test_svqsub_n_s8
+  // CHECK: %[[DUP:.*]] = call <vscale x 16 x i8> @llvm.aarch64.sve.dup.x.nxv16i8(i8 %op2)
+  // CHECK: %[[INTRINSIC:.*]] = call <vscale x 16 x i8> @llvm.aarch64.sve.sqsub.x.nxv16i8(<vscale x 16 x i8> %op1, <vscale x 16 x i8> %[[DUP]])
+  // CHECK: ret <vscale x 16 x i8> %[[INTRINSIC]]
+  return SVE_ACLE_FUNC(svqsub,_n_s8,,)(op1, op2);
+}
+
+svint16_t test_svqsub_n_s16(svint16_t op1, int16_t op2)
+{
+  // CHECK-LABEL: test_svqsub_n_s16
+  // CHECK: %[[DUP:.*]] = call <vscale x 8 x i16> @llvm.aarch64.sve.dup.x.nxv8i16(i16 %op2)
+  // CHECK: %[[INTRINSIC:.*]] = call <vscale x 8 x i16> @llvm.aarch64.sve.sqsub.x.nxv8i16(<vscale x 8 x i16> %op1, <vscale x 8 x i16> %[[DUP]])
+  // CHECK: ret <vscale x 8 x i16> %[[INTRINSIC]]
+  return SVE_ACLE_FUNC(svqsub,_n_s16,,)(op1, op2);
+}
+
+svint32_t test_svqsub_n_s32(svint32_t op1, int32_t op2)
+{
+  // CHECK-LABEL: test_svqsub_n_s32
+  // CHECK: %[[DUP:.*]] = call <vscale x 4 x i32> @llvm.aarch64.sve.dup.x.nxv4i32(i32 %op2)
+  // CHECK: %[[INTRINSIC:.*]] = call <vscale x 4 x i32> @llvm.aarch64.sve.sqsub.x.nxv4i32(<vscale x 4 x i32> %op1, <vscale x 4 x i32> %[[DUP]])
+  // CHECK: ret <vscale x 4 x i32> %[[INTRINSIC]]
+  return SVE_ACLE_FUNC(svqsub,_n_s32,,)(op1, op2);
+}
+
+svint64_t test_svqsub_n_s64(svint64_t op1, int64_t op2)
+{
+  // CHECK-LABEL: test_svqsub_n_s64
+  // CHECK: %[[DUP:.*]] = call <vscale x 2 x i64> @llvm.aarch64.sve.dup.x.nxv2i64(i64 %op2)
+  // CHECK: %[[INTRINSIC:.*]] = call <vscale x 2 x i64> @llvm.aarch64.sve.sqsub.x.nxv2i64(<vscale x 2 x i64> %op1, <vscale x 2 x i64> %[[DUP]])
+  // CHECK: ret <vscale x 2 x i64> %[[INTRINSIC]]
+  return SVE_ACLE_FUNC(svqsub,_n_s64,,)(op1, op2);
+}
+
+svuint8_t test_svqsub_n_u8(svuint8_t op1, uint8_t op2)
+{
+  // CHECK-LABEL: test_svqsub_n_u8
+  // CHECK: %[[DUP:.*]] = call <vscale x 16 x i8> @llvm.aarch64.sve.dup.x.nxv16i8(i8 %op2)
+  // CHECK: %[[INTRINSIC:.*]] = call <vscale x 16 x i8> @llvm.aarch64.sve.uqsub.x.nxv16i8(<vscale x 16 x i8> %op1, <vscale x 16 x i8> %[[DUP]])
+  // CHECK: ret <vscale x 16 x i8> %[[INTRINSIC]]
+  return SVE_ACLE_FUNC(svqsub,_n_u8,,)(op1, op2);
+}
+
+svuint16_t test_svqsub_n_u16(svuint16_t op1, uint16_t op2)
+{
+  // CHECK-LABEL: test_svqsub_n_u16
+  // CHECK: %[[DUP:.*]] = call <vscale x 8 x i16> @llvm.aarch64.sve.dup.x.nxv8i16(i16 %op2)
+  // CHECK: %[[INTRINSIC:.*]] = call <vscale x 8 x i16> @llvm.aarch64.sve.uqsub.x.nxv8i16(<vscale x 8 x i16> %op1, <vscale x 8 x i16> %[[DUP]])
+  // CHECK: ret <vscale x 8 x i16> %[[INTRINSIC]]
+  return SVE_ACLE_FUNC(svqsub,_n_u16,,)(op1, op2);
+}
+
+svuint32_t test_svqsub_n_u32(svuint32_t op1, uint32_t op2)
+{
+  // CHECK-LABEL: test_svqsub_n_u32
+  // CHECK: %[[DUP:.*]] = call <vscale x 4 x i32> @llvm.aarch64.sve.dup.x.nxv4i32(i32 %op2)
+  // CHECK: %[[INTRINSIC:.*]] = call <vscale x 4 x i32> @llvm.aarch64.sve.uqsub.x.nxv4i32(<vscale x 4 x i32> %op1, <vscale x 4 x i32> %[[DUP]])
+  // CHECK: ret <vscale x 4 x i32> %[[INTRINSIC]]
+  return SVE_ACLE_FUNC(svqsub,_n_u32,,)(op1, op2);
+}
+
+svuint64_t test_svqsub_n_u64(svuint64_t op1, uint64_t op2)
+{
+  // CHECK-LABEL: test_svqsub_n_u64
+  // CHECK: %[[DUP:.*]] = call <vscale x 2 x i64> @llvm.aarch64.sve.dup.x.nxv2i64(i64 %op2)
+  // CHECK: %[[INTRINSIC:.*]] = call <vscale x 2 x i64> @llvm.aarch64.sve.uqsub.x.nxv2i64(<vscale x 2 x i64> %op1, <vscale x 2 x i64> %[[DUP]])
+  // CHECK: ret <vscale x 2 x i64> %[[INTRINSIC]]
+  return SVE_ACLE_FUNC(svqsub,_n_u64,,)(op1, op2);
+}

diff  --git a/clang/utils/TableGen/SveEmitter.cpp b/clang/utils/TableGen/SveEmitter.cpp
index 0638a216c386..d787e6e56b34 100644
--- a/clang/utils/TableGen/SveEmitter.cpp
+++ b/clang/utils/TableGen/SveEmitter.cpp
@@ -532,6 +532,10 @@ void SVEType::applyModifier(char Mod) {
     ElementBitwidth /= 2;
     NumVectors = 0;
     break;
+  case 'r':
+    ElementBitwidth /= 4;
+    NumVectors = 0;
+    break;
   case 'K':
     Signed = true;
     Float = false;


        


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