[llvm-branch-commits] [llvm] ea62cce - avxifma

Freddy Ye via llvm-branch-commits llvm-branch-commits at lists.llvm.org
Mon Sep 5 08:12:31 PDT 2022


Author: Freddy Ye
Date: 2022-09-05T22:51:22+08:00
New Revision: ea62cce7c72d152406d6cd91754a3153c1300c31

URL: https://github.com/llvm/llvm-project/commit/ea62cce7c72d152406d6cd91754a3153c1300c31
DIFF: https://github.com/llvm/llvm-project/commit/ea62cce7c72d152406d6cd91754a3153c1300c31.diff

LOG: avxifma

Added: 
    clang/lib/Headers/avxifmaintrin.h
    clang/test/CodeGen/avxifma-builtins.c
    llvm/test/CodeGen/X86/avx-ifma-intrinsics.ll
    llvm/test/MC/Disassembler/X86/avx-ifma-att.txt
    llvm/test/MC/Disassembler/X86/avx-ifma-intel.txt
    llvm/test/MC/Disassembler/X86/x86-64-avx-ifma-att.txt
    llvm/test/MC/Disassembler/X86/x86-64-avx-ifma-intel.txt
    llvm/test/MC/X86/avx-ifma-att.s
    llvm/test/MC/X86/avx-ifma-intel.s
    llvm/test/MC/X86/x86-64-avx-ifma-att.s

Modified: 
    clang/include/clang/Basic/BuiltinsX86.def
    clang/include/clang/Driver/Options.td
    clang/lib/Basic/Targets/X86.cpp
    clang/lib/Basic/Targets/X86.h
    clang/lib/Headers/CMakeLists.txt
    clang/lib/Headers/immintrin.h
    clang/test/CodeGen/attr-target-x86.c
    clang/test/Driver/x86-target-features.c
    clang/test/Preprocessor/predefined-arch-macros-x86.c
    clang/test/Preprocessor/x86_target_features.c
    llvm/include/llvm/IR/IntrinsicsX86.td
    llvm/include/llvm/Support/X86TargetParser.def
    llvm/lib/Support/X86TargetParser.cpp
    llvm/lib/Target/X86/X86.td
    llvm/lib/Target/X86/X86InstrFoldTables.cpp
    llvm/lib/Target/X86/X86InstrInfo.cpp
    llvm/lib/Target/X86/X86InstrInfo.td
    llvm/lib/Target/X86/X86InstrSSE.td
    llvm/lib/Target/X86/X86IntrinsicsInfo.h

Removed: 
    


################################################################################
diff  --git a/clang/include/clang/Basic/BuiltinsX86.def b/clang/include/clang/Basic/BuiltinsX86.def
index ad8509e6124d4..c79dd20867ae1 100644
--- a/clang/include/clang/Basic/BuiltinsX86.def
+++ b/clang/include/clang/Basic/BuiltinsX86.def
@@ -1326,6 +1326,10 @@ TARGET_BUILTIN(__builtin_ia32_movdqa64load128_mask, "V2OiV2OiC*V2OiUc", "nV:128:
 TARGET_BUILTIN(__builtin_ia32_movdqa64load256_mask, "V4OiV4OiC*V4OiUc", "nV:256:", "avx512vl")
 TARGET_BUILTIN(__builtin_ia32_movdqa64store128_mask, "vV2Oi*V2OiUc", "nV:128:", "avx512vl")
 TARGET_BUILTIN(__builtin_ia32_movdqa64store256_mask, "vV4Oi*V4OiUc", "nV:256:", "avx512vl")
+TARGET_BUILTIN(__builtin_ia32_vpmadd52huqvex128, "V2OiV2OiV2OiV2Oi", "ncV:128:", "avxifma")
+TARGET_BUILTIN(__builtin_ia32_vpmadd52huqvex256, "V4OiV4OiV4OiV4Oi", "ncV:256:", "avxifma")
+TARGET_BUILTIN(__builtin_ia32_vpmadd52luqvex128, "V2OiV2OiV2OiV2Oi", "ncV:128:", "avxifma")
+TARGET_BUILTIN(__builtin_ia32_vpmadd52luqvex256, "V4OiV4OiV4OiV4Oi", "ncV:256:", "avxifma")
 TARGET_BUILTIN(__builtin_ia32_vpmadd52huq512, "V8OiV8OiV8OiV8Oi", "ncV:512:", "avx512ifma")
 TARGET_BUILTIN(__builtin_ia32_vpmadd52luq512, "V8OiV8OiV8OiV8Oi", "ncV:512:", "avx512ifma")
 TARGET_BUILTIN(__builtin_ia32_vpmadd52huq128, "V2OiV2OiV2OiV2Oi", "ncV:128:", "avx512ifma,avx512vl")

diff  --git a/clang/include/clang/Driver/Options.td b/clang/include/clang/Driver/Options.td
index d921ea5d5da99..4eaf752ea1c28 100644
--- a/clang/include/clang/Driver/Options.td
+++ b/clang/include/clang/Driver/Options.td
@@ -4544,6 +4544,8 @@ def mavx512vpopcntdq : Flag<["-"], "mavx512vpopcntdq">, Group<m_x86_Features_Gro
 def mno_avx512vpopcntdq : Flag<["-"], "mno-avx512vpopcntdq">, Group<m_x86_Features_Group>;
 def mavx512vp2intersect : Flag<["-"], "mavx512vp2intersect">, Group<m_x86_Features_Group>;
 def mno_avx512vp2intersect : Flag<["-"], "mno-avx512vp2intersect">, Group<m_x86_Features_Group>;
+def mavxifma : Flag<["-"], "mavxifma">, Group<m_x86_Features_Group>;
+def mno_avxifma : Flag<["-"], "mno-avxifma">, Group<m_x86_Features_Group>;
 def mavxvnni : Flag<["-"], "mavxvnni">, Group<m_x86_Features_Group>;
 def mno_avxvnni : Flag<["-"], "mno-avxvnni">, Group<m_x86_Features_Group>;
 def madx : Flag<["-"], "madx">, Group<m_x86_Features_Group>;

diff  --git a/clang/lib/Basic/Targets/X86.cpp b/clang/lib/Basic/Targets/X86.cpp
index 46a551603eca2..e20e1f369a1a8 100644
--- a/clang/lib/Basic/Targets/X86.cpp
+++ b/clang/lib/Basic/Targets/X86.cpp
@@ -330,6 +330,8 @@ bool X86TargetInfo::handleTargetFeatures(std::vector<std::string> &Features,
       HasAMXINT8 = true;
     } else if (Feature == "+amx-tile") {
       HasAMXTILE = true;
+    } else if (Feature == "+avxifma") {
+      HasAVXIFMA = true;
     } else if (Feature == "+avxvnni") {
       HasAVXVNNI = true;
     } else if (Feature == "+serialize") {
@@ -774,6 +776,9 @@ void X86TargetInfo::getTargetDefines(const LangOptions &Opts,
     Builder.defineMacro("__AMXINT8__");
   if (HasAMXBF16)
     Builder.defineMacro("__AMXBF16__");
+  if (HasAVXIFMA)
+    Builder.defineMacro("__AVXIFMA__");
+  Builder.defineMacro("__AVXIFMA_SUPPORTED__");
   if (HasAVXVNNI)
     Builder.defineMacro("__AVXVNNI__");
   if (HasSERIALIZE)
@@ -898,6 +903,7 @@ bool X86TargetInfo::isValidFeatureName(StringRef Name) const {
       .Case("avx512ifma", true)
       .Case("avx512vp2intersect", true)
       .Case("avxvnni", true)
+      .Case("avxifma", true)
       .Case("bmi", true)
       .Case("bmi2", true)
       .Case("cldemote", true)
@@ -973,6 +979,7 @@ bool X86TargetInfo::hasFeature(StringRef Feature) const {
       .Case("amx-bf16", HasAMXBF16)
       .Case("amx-int8", HasAMXINT8)
       .Case("amx-tile", HasAMXTILE)
+      .Case("avxifma", HasAVXIFMA)
       .Case("avxvnni", HasAVXVNNI)
       .Case("avx", SSELevel >= AVX)
       .Case("avx2", SSELevel >= AVX2)

diff  --git a/clang/lib/Basic/Targets/X86.h b/clang/lib/Basic/Targets/X86.h
index 7c1fe0d50fac0..87f5703094986 100644
--- a/clang/lib/Basic/Targets/X86.h
+++ b/clang/lib/Basic/Targets/X86.h
@@ -103,6 +103,7 @@ class LLVM_LIBRARY_VISIBILITY X86TargetInfo : public TargetInfo {
   bool HasAVX512VL = false;
   bool HasAVX512VBMI = false;
   bool HasAVX512VBMI2 = false;
+  bool HasAVXIFMA = false;
   bool HasAVX512IFMA = false;
   bool HasAVX512VP2INTERSECT = false;
   bool HasSHA = false;

diff  --git a/clang/lib/Headers/CMakeLists.txt b/clang/lib/Headers/CMakeLists.txt
index 6e2060991b921..cd412de8b4276 100644
--- a/clang/lib/Headers/CMakeLists.txt
+++ b/clang/lib/Headers/CMakeLists.txt
@@ -135,6 +135,7 @@ set(x86_files
   avx512vp2intersectintrin.h
   avx512vpopcntdqintrin.h
   avx512vpopcntdqvlintrin.h
+  avxifmaintrin.h
   avxintrin.h
   avxvnniintrin.h
   bmi2intrin.h

diff  --git a/clang/lib/Headers/avxifmaintrin.h b/clang/lib/Headers/avxifmaintrin.h
new file mode 100644
index 0000000000000..6961c49321db2
--- /dev/null
+++ b/clang/lib/Headers/avxifmaintrin.h
@@ -0,0 +1,66 @@
+/*===------------- avxifmaintrin.h - IFMA intrinsics ------------------===
+ *
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ *===-----------------------------------------------------------------------===
+ */
+#ifndef __IMMINTRIN_H
+#error "Never use <avxifmaintrin.h> directly; include <immintrin.h> instead."
+#endif
+
+#ifndef __AVXIFMAINTRIN_H
+#define __AVXIFMAINTRIN_H
+
+/* Define the default attributes for the functions in this file. */
+#define __DEFAULT_FN_ATTRS128 __attribute__((__always_inline__, __nodebug__, __target__("avxifma"), __min_vector_width__(128)))
+#define __DEFAULT_FN_ATTRS256 __attribute__((__always_inline__, __nodebug__, __target__("avxifma"), __min_vector_width__(256)))
+
+// must vex-encoding
+static __inline__ __m128i __DEFAULT_FN_ATTRS128
+_mm_madd52hi_avx_epu64 (__m128i __X, __m128i __Y, __m128i __Z)
+{
+  return (__m128i)__builtin_ia32_vpmadd52huqvex128((__v2di) __X, (__v2di) __Y,
+                                                (__v2di) __Z);
+}
+
+static __inline__ __m256i __DEFAULT_FN_ATTRS256
+_mm256_madd52hi_avx_epu64 (__m256i __X, __m256i __Y, __m256i __Z)
+{
+  return (__m256i)__builtin_ia32_vpmadd52huqvex256((__v4di) __X, (__v4di) __Y,
+                                                (__v4di) __Z);
+}
+
+static __inline__ __m128i __DEFAULT_FN_ATTRS128
+_mm_madd52lo_avx_epu64 (__m128i __X, __m128i __Y, __m128i __Z)
+{
+  return (__m128i)__builtin_ia32_vpmadd52luqvex128((__v2di) __X, (__v2di) __Y,
+                                                (__v2di) __Z);
+}
+
+static __inline__ __m256i __DEFAULT_FN_ATTRS256
+_mm256_madd52lo_avx_epu64 (__m256i __X, __m256i __Y, __m256i __Z)
+{
+  return (__m256i)__builtin_ia32_vpmadd52luqvex256((__v4di) __X, (__v4di) __Y,
+                                                (__v4di) __Z);
+}
+#undef __DEFAULT_FN_ATTRS128
+#undef __DEFAULT_FN_ATTRS256
+
+#endif // __AVXIFMAINTRIN_H

diff  --git a/clang/lib/Headers/immintrin.h b/clang/lib/Headers/immintrin.h
index f4e4ceaefb2e3..b7f28a66991d5 100644
--- a/clang/lib/Headers/immintrin.h
+++ b/clang/lib/Headers/immintrin.h
@@ -189,6 +189,13 @@
 #include <avx512ifmavlintrin.h>
 #endif
 
+#if defined(__AVXIFMA_SUPPORTED__)
+#if !(defined(_MSC_VER) || defined(__SCE__)) || __has_feature(modules) ||      \
+    defined(__AVXIFMA__) || defined(__M_INTRINSIC_PROMOTE__)
+#include <avxifmaintrin.h>
+#endif
+#endif
+
 #if !(defined(_MSC_VER) || defined(__SCE__)) || __has_feature(modules) ||      \
     defined(__AVX512VBMI__)
 #include <avx512vbmiintrin.h>

diff  --git a/clang/test/CodeGen/attr-target-x86.c b/clang/test/CodeGen/attr-target-x86.c
index 653033a649c81..604e3152debad 100644
--- a/clang/test/CodeGen/attr-target-x86.c
+++ b/clang/test/CodeGen/attr-target-x86.c
@@ -54,9 +54,9 @@ void __attribute__((target("arch=x86-64-v4"))) x86_64_v4(void) {}
 // CHECK: #0 = {{.*}}"target-cpu"="i686" "target-features"="+cx8,+x87" "tune-cpu"="i686"
 // CHECK: #1 = {{.*}}"target-cpu"="ivybridge" "target-features"="+avx,+crc32,+cx16,+cx8,+f16c,+fsgsbase,+fxsr,+mmx,+pclmul,+popcnt,+rdrnd,+sahf,+sse,+sse2,+sse3,+sse4.1,+sse4.2,+ssse3,+x87,+xsave,+xsaveopt"
 // CHECK-NOT: tune-cpu
-// CHECK: #2 = {{.*}}"target-cpu"="i686" "target-features"="+cx8,+x87,-aes,-avx,-avx2,-avx512bf16,-avx512bitalg,-avx512bw,-avx512cd,-avx512dq,-avx512er,-avx512f,-avx512fp16,-avx512ifma,-avx512pf,-avx512vbmi,-avx512vbmi2,-avx512vl,-avx512vnni,-avx512vp2intersect,-avx512vpopcntdq,-avxvnni,-f16c,-fma,-fma4,-gfni,-kl,-pclmul,-sha,-sse2,-sse3,-sse4.1,-sse4.2,-sse4a,-ssse3,-vaes,-vpclmulqdq,-widekl,-xop" "tune-cpu"="i686"
+// CHECK: #2 = {{.*}}"target-cpu"="i686" "target-features"="+cx8,+x87,-aes,-avx,-avx2,-avx512bf16,-avx512bitalg,-avx512bw,-avx512cd,-avx512dq,-avx512er,-avx512f,-avx512fp16,-avx512ifma,-avx512pf,-avx512vbmi,-avx512vbmi2,-avx512vl,-avx512vnni,-avx512vp2intersect,-avx512vpopcntdq,-avxifma,-avxvnni,-f16c,-fma,-fma4,-gfni,-kl,-pclmul,-sha,-sse2,-sse3,-sse4.1,-sse4.2,-sse4a,-ssse3,-vaes,-vpclmulqdq,-widekl,-xop" "tune-cpu"="i686"
 // CHECK: #3 = {{.*}}"target-cpu"="i686" "target-features"="+crc32,+cx8,+mmx,+popcnt,+sse,+sse2,+sse3,+sse4.1,+sse4.2,+ssse3,+x87" "tune-cpu"="i686"
-// CHECK: #4 = {{.*}}"target-cpu"="i686" "target-features"="+cx8,+x87,-avx,-avx2,-avx512bf16,-avx512bitalg,-avx512bw,-avx512cd,-avx512dq,-avx512er,-avx512f,-avx512fp16,-avx512ifma,-avx512pf,-avx512vbmi,-avx512vbmi2,-avx512vl,-avx512vnni,-avx512vp2intersect,-avx512vpopcntdq,-avxvnni,-f16c,-fma,-fma4,-sse4.1,-sse4.2,-vaes,-vpclmulqdq,-xop" "tune-cpu"="i686"
+// CHECK: #4 = {{.*}}"target-cpu"="i686" "target-features"="+cx8,+x87,-avx,-avx2,-avx512bf16,-avx512bitalg,-avx512bw,-avx512cd,-avx512dq,-avx512er,-avx512f,-avx512fp16,-avx512ifma,-avx512pf,-avx512vbmi,-avx512vbmi2,-avx512vl,-avx512vnni,-avx512vp2intersect,-avx512vpopcntdq,-avxifma,-avxvnni,-f16c,-fma,-fma4,-sse4.1,-sse4.2,-vaes,-vpclmulqdq,-xop" "tune-cpu"="i686"
 // CHECK: #5 = {{.*}}"target-cpu"="ivybridge" "target-features"="+avx,+crc32,+cx16,+cx8,+f16c,+fsgsbase,+fxsr,+mmx,+pclmul,+popcnt,+rdrnd,+sahf,+sse,+sse2,+sse3,+sse4.1,+sse4.2,+ssse3,+x87,+xsave,+xsaveopt,-aes,-vaes"
 // CHECK-NOT: tune-cpu
 // CHECK: #6 = {{.*}}"target-cpu"="i686" "target-features"="+cx8,+x87,-3dnow,-3dnowa,-mmx"

diff  --git a/clang/test/CodeGen/avxifma-builtins.c b/clang/test/CodeGen/avxifma-builtins.c
new file mode 100644
index 0000000000000..e8f1ce32acfc1
--- /dev/null
+++ b/clang/test/CodeGen/avxifma-builtins.c
@@ -0,0 +1,28 @@
+// REQUIRES: intel_feature_isa_avx_ifma
+// RUN: %clang_cc1 -ffreestanding %s -triple=x86_64-apple-darwin -target-feature +avxifma -emit-llvm -o - -Wall -Werror | FileCheck %s
+
+#include <immintrin.h>
+
+__m128i test_mm_madd52hi_avx_epu64(__m128i __X, __m128i __Y, __m128i __Z) {
+// CHECK-LABEL: @test_mm_madd52hi_avx_epu64
+// CHECK:    call <2 x i64> @llvm.x86.avx.vpmadd52h.uq.128
+  return _mm_madd52hi_avx_epu64(__X, __Y, __Z);
+}
+
+__m256i test_mm256_madd52hi_avx_epu64(__m256i __X, __m256i __Y, __m256i __Z) {
+// CHECK-LABEL: @test_mm256_madd52hi_avx_epu64
+// CHECK:    call <4 x i64> @llvm.x86.avx.vpmadd52h.uq.256
+  return _mm256_madd52hi_avx_epu64(__X, __Y, __Z);
+}
+
+__m128i test_mm_madd52lo_avx_epu64(__m128i __X, __m128i __Y, __m128i __Z) {
+// CHECK-LABEL: @test_mm_madd52lo_avx_epu64
+// CHECK:    call <2 x i64> @llvm.x86.avx.vpmadd52l.uq.128
+  return _mm_madd52lo_avx_epu64(__X, __Y, __Z);
+}
+
+__m256i test_mm256_madd52lo_avx_epu64(__m256i __X, __m256i __Y, __m256i __Z) {
+// CHECK-LABEL: @test_mm256_madd52lo_avx_epu64
+// CHECK:    call <4 x i64> @llvm.x86.avx.vpmadd52l.uq.256
+  return _mm256_madd52lo_avx_epu64(__X, __Y, __Z);
+}

diff  --git a/clang/test/Driver/x86-target-features.c b/clang/test/Driver/x86-target-features.c
index d30215d45334e..a3eecd8bedfab 100644
--- a/clang/test/Driver/x86-target-features.c
+++ b/clang/test/Driver/x86-target-features.c
@@ -305,6 +305,11 @@
 // AVX512FP16: "-target-feature" "+avx512fp16"
 // NO-AVX512FP16: "-target-feature" "-avx512fp16"
 
+// RUN: %clang -target i386-linux-gnu -mavxifma %s -### -o %t.o 2>&1 | FileCheck -check-prefix=AVXIFMA %s
+// RUN: %clang -target i386-linux-gnu -mno-avxifma %s -### -o %t.o 2>&1 | FileCheck -check-prefix=NO-AVXIFMA %s
+// AVXIFMA: "-target-feature" "+avxifma"
+// NO-AVXIFMA: "-target-feature" "-avxifma"
+
 // RUN: %clang --target=i386 -march=i386 -mcrc32 %s -### 2>&1 | FileCheck -check-prefix=CRC32 %s
 // RUN: %clang --target=i386 -march=i386 -mno-crc32 %s -### 2>&1 | FileCheck -check-prefix=NO-CRC32 %s
 // CRC32: "-target-feature" "+crc32"

diff  --git a/clang/test/Preprocessor/predefined-arch-macros-x86.c b/clang/test/Preprocessor/predefined-arch-macros-x86.c
index 37b7c612b4919..7818c59d02d54 100644
--- a/clang/test/Preprocessor/predefined-arch-macros-x86.c
+++ b/clang/test/Preprocessor/predefined-arch-macros-x86.c
@@ -32,7 +32,7 @@
 // RUN: FileCheck %s --check-prefix=X86_64_V3 < %t.txt
 
 // X86_64_V3:      #define __AVX2__ 1
-// X86_64_V3-NEXT: #define __AVX__ 1
+// X86_64_V3 :     #define __AVX__ 1
 // X86_64_V3:      #define __BMI2__ 1
 // X86_64_V3-NEXT: #define __BMI__ 1
 // X86_64_V3:      #define __F16C__ 1

diff  --git a/clang/test/Preprocessor/x86_target_features.c b/clang/test/Preprocessor/x86_target_features.c
index c9258bd5fd1da..cb5adfcb36b56 100644
--- a/clang/test/Preprocessor/x86_target_features.c
+++ b/clang/test/Preprocessor/x86_target_features.c
@@ -581,6 +581,16 @@
 // AVX512FP16NOAVX512DQ-NOT: #define __AVX512DQ__ 1
 // AVX512FP16NOAVX512DQ-NOT: #define __AVX512FP16__ 1
 
+// RUN: %clang -target i386-unknown-unknown -march=atom -mavxifma -x c -E -dM -o - %s | FileCheck -match-full-lines --check-prefix=AVXIFMA %s
+
+// AVXIFMA: #define __AVX2__ 1
+// AVXIFMA: #define __AVXIFMA__ 1
+
+// RUN: %clang -target i386-unknown-unknown -march=atom -mavxifma -mno-avx2 -x c -E -dM -o - %s | FileCheck -match-full-lines --check-prefix=AVXIFMANOAVX2 %s
+
+// AVXIFMANOAVX2-NOT: #define __AVX2__ 1
+// AVXIFMANOAVX2-NOT: #define __AVXIFMA__ 1
+
 // RUN: %clang -target i386-unknown-linux-gnu -march=i386 -mcrc32 -x c -E -dM -o - %s | FileCheck -check-prefix=CRC32 %s
 
 // CRC32: #define __CRC32__ 1

diff  --git a/llvm/include/llvm/IR/IntrinsicsX86.td b/llvm/include/llvm/IR/IntrinsicsX86.td
index c274e35042502..31274a7e56d84 100644
--- a/llvm/include/llvm/IR/IntrinsicsX86.td
+++ b/llvm/include/llvm/IR/IntrinsicsX86.td
@@ -1874,6 +1874,22 @@ let TargetPrefix = "x86" in {  // All intrinsics start with "llvm.x86.".
               ClangBuiltin<"__builtin_ia32_vpmadd52luq512">,
               Intrinsic<[llvm_v8i64_ty], [llvm_v8i64_ty, llvm_v8i64_ty,
                          llvm_v8i64_ty], [IntrNoMem]>;
+  def int_x86_avx_vpmadd52h_uq_128 :
+              ClangBuiltin<"__builtin_ia32_vpmadd52huqvex128">,
+              Intrinsic<[llvm_v2i64_ty], [llvm_v2i64_ty, llvm_v2i64_ty,
+                         llvm_v2i64_ty], [IntrNoMem]>;
+  def int_x86_avx_vpmadd52l_uq_128 :
+              ClangBuiltin<"__builtin_ia32_vpmadd52luqvex128">,
+              Intrinsic<[llvm_v2i64_ty], [llvm_v2i64_ty, llvm_v2i64_ty,
+                         llvm_v2i64_ty], [IntrNoMem]>;
+  def int_x86_avx_vpmadd52h_uq_256 :
+              ClangBuiltin<"__builtin_ia32_vpmadd52huqvex256">,
+              Intrinsic<[llvm_v4i64_ty], [llvm_v4i64_ty, llvm_v4i64_ty,
+                         llvm_v4i64_ty], [IntrNoMem]>;
+  def int_x86_avx_vpmadd52l_uq_256 :
+              ClangBuiltin<"__builtin_ia32_vpmadd52luqvex256">,
+              Intrinsic<[llvm_v4i64_ty], [llvm_v4i64_ty, llvm_v4i64_ty,
+                         llvm_v4i64_ty], [IntrNoMem]>;
 }
 
 // VNNI

diff  --git a/llvm/include/llvm/Support/X86TargetParser.def b/llvm/include/llvm/Support/X86TargetParser.def
index 1a928e5a9acca..5789f2b96b0e0 100644
--- a/llvm/include/llvm/Support/X86TargetParser.def
+++ b/llvm/include/llvm/Support/X86TargetParser.def
@@ -201,6 +201,7 @@ X86_FEATURE       (XSAVEOPT,        "xsaveopt")
 X86_FEATURE       (XSAVES,          "xsaves")
 X86_FEATURE       (HRESET,          "hreset")
 X86_FEATURE       (AVX512FP16,      "avx512fp16")
+X86_FEATURE       (AVXIFMA,         "avxifma")
 X86_FEATURE       (AVXVNNI,         "avxvnni")
 // These features aren't really CPU features, but the frontend can set them.
 X86_FEATURE       (RETPOLINE_EXTERNAL_THUNK,    "retpoline-external-thunk")

diff  --git a/llvm/lib/Support/X86TargetParser.cpp b/llvm/lib/Support/X86TargetParser.cpp
index bb62102ba0aeb..e829a36a5c8bb 100644
--- a/llvm/lib/Support/X86TargetParser.cpp
+++ b/llvm/lib/Support/X86TargetParser.cpp
@@ -581,6 +581,7 @@ constexpr FeatureBitset ImpliedFeaturesAMX_BF16 = FeatureAMX_TILE;
 constexpr FeatureBitset ImpliedFeaturesAMX_INT8 = FeatureAMX_TILE;
 constexpr FeatureBitset ImpliedFeaturesHRESET = {};
 
+static constexpr FeatureBitset ImpliedFeaturesAVXIFMA = FeatureAVX2;
 static constexpr FeatureBitset ImpliedFeaturesAVX512FP16 =
     FeatureAVX512BW | FeatureAVX512DQ | FeatureAVX512VL;
 // Key Locker Features

diff  --git a/llvm/lib/Target/X86/X86.td b/llvm/lib/Target/X86/X86.td
index 4c208df8f342e..ea3b1331d0634 100644
--- a/llvm/lib/Target/X86/X86.td
+++ b/llvm/lib/Target/X86/X86.td
@@ -152,6 +152,9 @@ def FeatureVBMI     : SubtargetFeature<"avx512vbmi", "HasVBMI", "true",
 def FeatureVBMI2    : SubtargetFeature<"avx512vbmi2", "HasVBMI2", "true",
                       "Enable AVX-512 further Vector Byte Manipulation Instructions",
                                       [FeatureBWI]>;
+def FeatureAVXIFMA    : SubtargetFeature<"avxifma", "HasAVXIFMA", "true",
+                           "Enable AVX-IFMA",
+                           [FeatureAVX2]>;
 def FeatureIFMA     : SubtargetFeature<"avx512ifma", "HasIFMA", "true",
                       "Enable AVX-512 Integer Fused Multiple-Add",
                                       [FeatureAVX512]>;

diff  --git a/llvm/lib/Target/X86/X86InstrFoldTables.cpp b/llvm/lib/Target/X86/X86InstrFoldTables.cpp
index 8aeb169929f2d..9d58889814037 100644
--- a/llvm/lib/Target/X86/X86InstrFoldTables.cpp
+++ b/llvm/lib/Target/X86/X86InstrFoldTables.cpp
@@ -4103,12 +4103,16 @@ static const X86MemoryFoldTableEntry MemoryFoldTable3[] = {
   { X86::VPLZCNTQZ128rrk,            X86::VPLZCNTQZ128rmk,            0 },
   { X86::VPLZCNTQZ256rrk,            X86::VPLZCNTQZ256rmk,            0 },
   { X86::VPLZCNTQZrrk,               X86::VPLZCNTQZrmk,               0 },
+  { X86::VPMADD52HUQYrr,             X86::VPMADD52HUQYrm,             0 },
   { X86::VPMADD52HUQZ128r,           X86::VPMADD52HUQZ128m,           0 },
   { X86::VPMADD52HUQZ256r,           X86::VPMADD52HUQZ256m,           0 },
   { X86::VPMADD52HUQZr,              X86::VPMADD52HUQZm,              0 },
+  { X86::VPMADD52HUQrr,              X86::VPMADD52HUQrm,              0 },
+  { X86::VPMADD52LUQYrr,             X86::VPMADD52LUQYrm,             0 },
   { X86::VPMADD52LUQZ128r,           X86::VPMADD52LUQZ128m,           0 },
   { X86::VPMADD52LUQZ256r,           X86::VPMADD52LUQZ256m,           0 },
   { X86::VPMADD52LUQZr,              X86::VPMADD52LUQZm,              0 },
+  { X86::VPMADD52LUQrr,              X86::VPMADD52LUQrm,              0 },
   { X86::VPMADDUBSWZ128rrkz,         X86::VPMADDUBSWZ128rmkz,         0 },
   { X86::VPMADDUBSWZ256rrkz,         X86::VPMADDUBSWZ256rmkz,         0 },
   { X86::VPMADDUBSWZrrkz,            X86::VPMADDUBSWZrmkz,            0 },

diff  --git a/llvm/lib/Target/X86/X86InstrInfo.cpp b/llvm/lib/Target/X86/X86InstrInfo.cpp
index c5904f8407fee..4e74ef594fd93 100644
--- a/llvm/lib/Target/X86/X86InstrInfo.cpp
+++ b/llvm/lib/Target/X86/X86InstrInfo.cpp
@@ -2568,6 +2568,8 @@ bool X86InstrInfo::findCommutedOpIndices(const MachineInstr &MI,
   case X86::VPDPWSSDSZr:
   case X86::VPDPWSSDSZrk:
   case X86::VPDPWSSDSZrkz:
+  case X86::VPMADD52HUQrr:
+  case X86::VPMADD52HUQYrr:
   case X86::VPMADD52HUQZ128r:
   case X86::VPMADD52HUQZ128rk:
   case X86::VPMADD52HUQZ128rkz:
@@ -2577,6 +2579,8 @@ bool X86InstrInfo::findCommutedOpIndices(const MachineInstr &MI,
   case X86::VPMADD52HUQZr:
   case X86::VPMADD52HUQZrk:
   case X86::VPMADD52HUQZrkz:
+  case X86::VPMADD52LUQrr:
+  case X86::VPMADD52LUQYrr:
   case X86::VPMADD52LUQZ128r:
   case X86::VPMADD52LUQZ128rk:
   case X86::VPMADD52LUQZ128rkz:

diff  --git a/llvm/lib/Target/X86/X86InstrInfo.td b/llvm/lib/Target/X86/X86InstrInfo.td
index 9f2cd2e0786e2..e019dd893d778 100644
--- a/llvm/lib/Target/X86/X86InstrInfo.td
+++ b/llvm/lib/Target/X86/X86InstrInfo.td
@@ -949,6 +949,8 @@ def NoBMI2       : Predicate<"!Subtarget->hasBMI2()">;
 def HasVBMI      : Predicate<"Subtarget->hasVBMI()">;
 def HasVBMI2     : Predicate<"Subtarget->hasVBMI2()">;
 def HasIFMA      : Predicate<"Subtarget->hasIFMA()">;
+def HasAVXIFMA   : Predicate<"Subtarget->hasAVXIFMA()">;
+def NoVLX_Or_NoIFMA : Predicate<"!Subtarget->hasVLX() || !Subtarget->hasIFMA()">;
 def HasRTM       : Predicate<"Subtarget->hasRTM()">;
 def HasADX       : Predicate<"Subtarget->hasADX()">;
 def HasSHA       : Predicate<"Subtarget->hasSHA()">;

diff  --git a/llvm/lib/Target/X86/X86InstrSSE.td b/llvm/lib/Target/X86/X86InstrSSE.td
index c5557bd5df4e4..8083b0b096695 100644
--- a/llvm/lib/Target/X86/X86InstrSSE.td
+++ b/llvm/lib/Target/X86/X86InstrSSE.td
@@ -8115,3 +8115,40 @@ let isCommutable = 0 in {
                                              X86GF2P8affineqb>, TAPD;
 }
 
+let Predicates = [HasAVXIFMA, NoVLX_Or_NoIFMA], Constraints = "$src1 = $dst",
+    checkVEXPredicate = 1 in
+multiclass avx_ifma_rm<bits<8> opc, string OpcodeStr, SDNode OpNode> {
+  // NOTE: The SDNode have the multiply operands first with the add last.
+  // This enables commuted load patterns to be autogenerated by tablegen.
+  let isCommutable = 1 in {
+    def rr  : AVX8I<opc, MRMSrcReg, (outs VR128:$dst),
+               (ins VR128:$src1, VR128:$src2, VR128:$src3),
+               !strconcat(OpcodeStr, "\t{$src3, $src2, $dst|$dst, $src2, $src3}"),
+               [(set VR128:$dst, (v2i64 (OpNode VR128:$src2,
+                                         VR128:$src3, VR128:$src1)))]>,
+               VEX_4V, Sched<[SchedWriteVecIMul.XMM]>;
+  }
+    def rm  : AVX8I<opc, MRMSrcMem, (outs VR128:$dst),
+               (ins VR128:$src1, VR128:$src2, i128mem:$src3),
+               !strconcat(OpcodeStr, "\t{$src3, $src2, $dst|$dst, $src2, $src3}"),
+               [(set VR128:$dst, (v2i64 (OpNode VR128:$src2,
+                                        (loadv2i64 addr:$src3), VR128:$src1)))]>,
+               VEX_4V, Sched<[SchedWriteVecIMul.XMM]>;
+  let isCommutable = 1 in {
+    def Yrr  : AVX8I<opc, MRMSrcReg, (outs VR256:$dst),
+               (ins VR256:$src1, VR256:$src2, VR256:$src3),
+               !strconcat(OpcodeStr, "\t{$src3, $src2, $dst|$dst, $src2, $src3}"),
+               [(set VR256:$dst, (v4i64 (OpNode VR256:$src2,
+                                         VR256:$src3, VR256:$src1)))]>,
+               VEX_4V, VEX_L, Sched<[SchedWriteVecIMul.YMM]>;
+  }
+    def Yrm  : AVX8I<opc, MRMSrcMem, (outs VR256:$dst),
+               (ins VR256:$src1, VR256:$src2, i256mem:$src3),
+               !strconcat(OpcodeStr, "\t{$src3, $src2, $dst|$dst, $src2, $src3}"),
+               [(set VR256:$dst, (v4i64 (OpNode VR256:$src2,
+                                        (loadv4i64 addr:$src3), VR256:$src1)))]>,
+               VEX_4V, VEX_L, Sched<[SchedWriteVecIMul.YMM]>;
+}
+
+defm VPMADD52HUQ : avx_ifma_rm<0xb5, "vpmadd52huq", x86vpmadd52h>, VEX_W, ExplicitVEXPrefix;
+defm VPMADD52LUQ : avx_ifma_rm<0xb4, "vpmadd52luq", x86vpmadd52l>, VEX_W, ExplicitVEXPrefix;

diff  --git a/llvm/lib/Target/X86/X86IntrinsicsInfo.h b/llvm/lib/Target/X86/X86IntrinsicsInfo.h
index 6112c0b7d6c3e..92d55d896febd 100644
--- a/llvm/lib/Target/X86/X86IntrinsicsInfo.h
+++ b/llvm/lib/Target/X86/X86IntrinsicsInfo.h
@@ -368,6 +368,10 @@ static const IntrinsicData  IntrinsicsWithoutChain[] = {
   X86_INTRINSIC_DATA(avx_vpermilvar_pd_256, INTR_TYPE_2OP, X86ISD::VPERMILPV, 0),
   X86_INTRINSIC_DATA(avx_vpermilvar_ps,     INTR_TYPE_2OP, X86ISD::VPERMILPV, 0),
   X86_INTRINSIC_DATA(avx_vpermilvar_ps_256, INTR_TYPE_2OP, X86ISD::VPERMILPV, 0),
+  X86_INTRINSIC_DATA(avx_vpmadd52h_uq_128, IFMA_OP, X86ISD::VPMADD52H, 0),
+  X86_INTRINSIC_DATA(avx_vpmadd52h_uq_256, IFMA_OP, X86ISD::VPMADD52H, 0),
+  X86_INTRINSIC_DATA(avx_vpmadd52l_uq_128, IFMA_OP, X86ISD::VPMADD52L, 0),
+  X86_INTRINSIC_DATA(avx_vpmadd52l_uq_256, IFMA_OP, X86ISD::VPMADD52L, 0),
   X86_INTRINSIC_DATA(avx2_packssdw, INTR_TYPE_2OP, X86ISD::PACKSS, 0),
   X86_INTRINSIC_DATA(avx2_packsswb, INTR_TYPE_2OP, X86ISD::PACKSS, 0),
   X86_INTRINSIC_DATA(avx2_packusdw, INTR_TYPE_2OP, X86ISD::PACKUS, 0),

diff  --git a/llvm/test/CodeGen/X86/avx-ifma-intrinsics.ll b/llvm/test/CodeGen/X86/avx-ifma-intrinsics.ll
new file mode 100644
index 0000000000000..7216bc4482dc4
--- /dev/null
+++ b/llvm/test/CodeGen/X86/avx-ifma-intrinsics.ll
@@ -0,0 +1,48 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; REQUIRES: intel_feature_isa_avx_ifma
+; RUN: llc < %s -mtriple=i686-unknown-unknown -mattr=+avxifma --show-mc-encoding | FileCheck %s --check-prefixes=CHECK,X86
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avxifma --show-mc-encoding | FileCheck %s --check-prefixes=CHECK,X64
+
+declare <2 x i64> @llvm.x86.avx.vpmadd52h.uq.128(<2 x i64>, <2 x i64>, <2 x i64>)
+
+define <2 x i64>@test_int_x86_avx_vpmadd52h_uq_128(<2 x i64> %x0, <2 x i64> %x1, <2 x i64> %x2) {
+; CHECK-LABEL: test_int_x86_avx_vpmadd52h_uq_128:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    {vex} vpmadd52huq %xmm2, %xmm1, %xmm0 # encoding: [0xc4,0xe2,0xf1,0xb5,0xc2]
+; CHECK-NEXT:    ret{{[l|q]}} # encoding: [0xc3]
+  %res = call <2 x i64> @llvm.x86.avx.vpmadd52h.uq.128(<2 x i64> %x0, <2 x i64> %x1, <2 x i64> %x2)
+  ret <2 x i64> %res
+}
+
+declare <4 x i64> @llvm.x86.avx.vpmadd52h.uq.256(<4 x i64>, <4 x i64>, <4 x i64>)
+
+define <4 x i64>@test_int_x86_avx_vpmadd52h_uq_256(<4 x i64> %x0, <4 x i64> %x1, <4 x i64> %x2) {
+; CHECK-LABEL: test_int_x86_avx_vpmadd52h_uq_256:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    {vex} vpmadd52huq %ymm2, %ymm1, %ymm0 # encoding: [0xc4,0xe2,0xf5,0xb5,0xc2]
+; CHECK-NEXT:    ret{{[l|q]}} # encoding: [0xc3]
+  %res = call <4 x i64> @llvm.x86.avx.vpmadd52h.uq.256(<4 x i64> %x0, <4 x i64> %x1, <4 x i64> %x2)
+  ret <4 x i64> %res
+}
+
+declare <2 x i64> @llvm.x86.avx.vpmadd52l.uq.128(<2 x i64>, <2 x i64>, <2 x i64>)
+
+define <2 x i64>@test_int_x86_avx_vpmadd52l_uq_128(<2 x i64> %x0, <2 x i64> %x1, <2 x i64> %x2) {
+; CHECK-LABEL: test_int_x86_avx_vpmadd52l_uq_128:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    {vex} vpmadd52luq %xmm2, %xmm1, %xmm0 # encoding: [0xc4,0xe2,0xf1,0xb4,0xc2]
+; CHECK-NEXT:    ret{{[l|q]}} # encoding: [0xc3]
+  %res = call <2 x i64> @llvm.x86.avx.vpmadd52l.uq.128(<2 x i64> %x0, <2 x i64> %x1, <2 x i64> %x2)
+  ret <2 x i64> %res
+}
+
+declare <4 x i64> @llvm.x86.avx.vpmadd52l.uq.256(<4 x i64>, <4 x i64>, <4 x i64>)
+
+define <4 x i64>@test_int_x86_avx_vpmadd52l_uq_256(<4 x i64> %x0, <4 x i64> %x1, <4 x i64> %x2) {
+; CHECK-LABEL: test_int_x86_avx_vpmadd52l_uq_256:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    {vex} vpmadd52luq %ymm2, %ymm1, %ymm0 # encoding: [0xc4,0xe2,0xf5,0xb4,0xc2]
+; CHECK-NEXT:    ret{{[l|q]}} # encoding: [0xc3]
+  %res = call <4 x i64> @llvm.x86.avx.vpmadd52l.uq.256(<4 x i64> %x0, <4 x i64> %x1, <4 x i64> %x2)
+  ret <4 x i64> %res
+}

diff  --git a/llvm/test/MC/Disassembler/X86/avx-ifma-att.txt b/llvm/test/MC/Disassembler/X86/avx-ifma-att.txt
new file mode 100644
index 0000000000000..2744158837d19
--- /dev/null
+++ b/llvm/test/MC/Disassembler/X86/avx-ifma-att.txt
@@ -0,0 +1,87 @@
+# REQUIRES: intel_feature_isa_avx_ifma
+# RUN: llvm-mc --disassemble %s -triple=i686 | FileCheck %s
+
+# CHECK: {vex} vpmadd52huq %ymm4, %ymm3, %ymm2
+0xc4,0xe2,0xe5,0xb5,0xd4
+
+# CHECK: {vex} vpmadd52huq %xmm4, %xmm3, %xmm2
+0xc4,0xe2,0xe1,0xb5,0xd4
+
+# CHECK: {vex} vpmadd52huq  268435456(%esp,%esi,8), %ymm3, %ymm2
+0xc4,0xe2,0xe5,0xb5,0x94,0xf4,0x00,0x00,0x00,0x10
+
+# CHECK: {vex} vpmadd52huq  291(%edi,%eax,4), %ymm3, %ymm2
+0xc4,0xe2,0xe5,0xb5,0x94,0x87,0x23,0x01,0x00,0x00
+
+# CHECK: {vex} vpmadd52huq  (%eax), %ymm3, %ymm2
+0xc4,0xe2,0xe5,0xb5,0x10
+
+# CHECK: {vex} vpmadd52huq  -1024(,%ebp,2), %ymm3, %ymm2
+0xc4,0xe2,0xe5,0xb5,0x14,0x6d,0x00,0xfc,0xff,0xff
+
+# CHECK: {vex} vpmadd52huq  4064(%ecx), %ymm3, %ymm2
+0xc4,0xe2,0xe5,0xb5,0x91,0xe0,0x0f,0x00,0x00
+
+# CHECK: {vex} vpmadd52huq  -4096(%edx), %ymm3, %ymm2
+0xc4,0xe2,0xe5,0xb5,0x92,0x00,0xf0,0xff,0xff
+
+# CHECK: {vex} vpmadd52huq  268435456(%esp,%esi,8), %xmm3, %xmm2
+0xc4,0xe2,0xe1,0xb5,0x94,0xf4,0x00,0x00,0x00,0x10
+
+# CHECK: {vex} vpmadd52huq  291(%edi,%eax,4), %xmm3, %xmm2
+0xc4,0xe2,0xe1,0xb5,0x94,0x87,0x23,0x01,0x00,0x00
+
+# CHECK: {vex} vpmadd52huq  (%eax), %xmm3, %xmm2
+0xc4,0xe2,0xe1,0xb5,0x10
+
+# CHECK: {vex} vpmadd52huq  -512(,%ebp,2), %xmm3, %xmm2
+0xc4,0xe2,0xe1,0xb5,0x14,0x6d,0x00,0xfe,0xff,0xff
+
+# CHECK: {vex} vpmadd52huq  2032(%ecx), %xmm3, %xmm2
+0xc4,0xe2,0xe1,0xb5,0x91,0xf0,0x07,0x00,0x00
+
+# CHECK: {vex} vpmadd52huq  -2048(%edx), %xmm3, %xmm2
+0xc4,0xe2,0xe1,0xb5,0x92,0x00,0xf8,0xff,0xff
+
+# CHECK: {vex} vpmadd52luq %ymm4, %ymm3, %ymm2
+0xc4,0xe2,0xe5,0xb4,0xd4
+
+# CHECK: {vex} vpmadd52luq %xmm4, %xmm3, %xmm2
+0xc4,0xe2,0xe1,0xb4,0xd4
+
+# CHECK: {vex} vpmadd52luq  268435456(%esp,%esi,8), %ymm3, %ymm2
+0xc4,0xe2,0xe5,0xb4,0x94,0xf4,0x00,0x00,0x00,0x10
+
+# CHECK: {vex} vpmadd52luq  291(%edi,%eax,4), %ymm3, %ymm2
+0xc4,0xe2,0xe5,0xb4,0x94,0x87,0x23,0x01,0x00,0x00
+
+# CHECK: {vex} vpmadd52luq  (%eax), %ymm3, %ymm2
+0xc4,0xe2,0xe5,0xb4,0x10
+
+# CHECK: {vex} vpmadd52luq  -1024(,%ebp,2), %ymm3, %ymm2
+0xc4,0xe2,0xe5,0xb4,0x14,0x6d,0x00,0xfc,0xff,0xff
+
+# CHECK: {vex} vpmadd52luq  4064(%ecx), %ymm3, %ymm2
+0xc4,0xe2,0xe5,0xb4,0x91,0xe0,0x0f,0x00,0x00
+
+# CHECK: {vex} vpmadd52luq  -4096(%edx), %ymm3, %ymm2
+0xc4,0xe2,0xe5,0xb4,0x92,0x00,0xf0,0xff,0xff
+
+# CHECK: {vex} vpmadd52luq  268435456(%esp,%esi,8), %xmm3, %xmm2
+0xc4,0xe2,0xe1,0xb4,0x94,0xf4,0x00,0x00,0x00,0x10
+
+# CHECK: {vex} vpmadd52luq  291(%edi,%eax,4), %xmm3, %xmm2
+0xc4,0xe2,0xe1,0xb4,0x94,0x87,0x23,0x01,0x00,0x00
+
+# CHECK: {vex} vpmadd52luq  (%eax), %xmm3, %xmm2
+0xc4,0xe2,0xe1,0xb4,0x10
+
+# CHECK: {vex} vpmadd52luq  -512(,%ebp,2), %xmm3, %xmm2
+0xc4,0xe2,0xe1,0xb4,0x14,0x6d,0x00,0xfe,0xff,0xff
+
+# CHECK: {vex} vpmadd52luq  2032(%ecx), %xmm3, %xmm2
+0xc4,0xe2,0xe1,0xb4,0x91,0xf0,0x07,0x00,0x00
+
+# CHECK: {vex} vpmadd52luq  -2048(%edx), %xmm3, %xmm2
+0xc4,0xe2,0xe1,0xb4,0x92,0x00,0xf8,0xff,0xff
+

diff  --git a/llvm/test/MC/Disassembler/X86/avx-ifma-intel.txt b/llvm/test/MC/Disassembler/X86/avx-ifma-intel.txt
new file mode 100644
index 0000000000000..c004c25f518d9
--- /dev/null
+++ b/llvm/test/MC/Disassembler/X86/avx-ifma-intel.txt
@@ -0,0 +1,87 @@
+# REQUIRES: intel_feature_isa_avx_ifma
+# RUN: llvm-mc --disassemble %s -triple=i686 -x86-asm-syntax=intel --output-asm-variant=1 | FileCheck %s
+
+# CHECK: {vex} vpmadd52huq ymm2, ymm3, ymm4
+0xc4,0xe2,0xe5,0xb5,0xd4
+
+# CHECK: {vex} vpmadd52huq xmm2, xmm3, xmm4
+0xc4,0xe2,0xe1,0xb5,0xd4
+
+# CHECK: {vex} vpmadd52huq ymm2, ymm3, ymmword ptr [esp + 8*esi + 268435456]
+0xc4,0xe2,0xe5,0xb5,0x94,0xf4,0x00,0x00,0x00,0x10
+
+# CHECK: {vex} vpmadd52huq ymm2, ymm3, ymmword ptr [edi + 4*eax + 291]
+0xc4,0xe2,0xe5,0xb5,0x94,0x87,0x23,0x01,0x00,0x00
+
+# CHECK: {vex} vpmadd52huq ymm2, ymm3, ymmword ptr [eax]
+0xc4,0xe2,0xe5,0xb5,0x10
+
+# CHECK: {vex} vpmadd52huq ymm2, ymm3, ymmword ptr [2*ebp - 1024]
+0xc4,0xe2,0xe5,0xb5,0x14,0x6d,0x00,0xfc,0xff,0xff
+
+# CHECK: {vex} vpmadd52huq ymm2, ymm3, ymmword ptr [ecx + 4064]
+0xc4,0xe2,0xe5,0xb5,0x91,0xe0,0x0f,0x00,0x00
+
+# CHECK: {vex} vpmadd52huq ymm2, ymm3, ymmword ptr [edx - 4096]
+0xc4,0xe2,0xe5,0xb5,0x92,0x00,0xf0,0xff,0xff
+
+# CHECK: {vex} vpmadd52huq xmm2, xmm3, xmmword ptr [esp + 8*esi + 268435456]
+0xc4,0xe2,0xe1,0xb5,0x94,0xf4,0x00,0x00,0x00,0x10
+
+# CHECK: {vex} vpmadd52huq xmm2, xmm3, xmmword ptr [edi + 4*eax + 291]
+0xc4,0xe2,0xe1,0xb5,0x94,0x87,0x23,0x01,0x00,0x00
+
+# CHECK: {vex} vpmadd52huq xmm2, xmm3, xmmword ptr [eax]
+0xc4,0xe2,0xe1,0xb5,0x10
+
+# CHECK: {vex} vpmadd52huq xmm2, xmm3, xmmword ptr [2*ebp - 512]
+0xc4,0xe2,0xe1,0xb5,0x14,0x6d,0x00,0xfe,0xff,0xff
+
+# CHECK: {vex} vpmadd52huq xmm2, xmm3, xmmword ptr [ecx + 2032]
+0xc4,0xe2,0xe1,0xb5,0x91,0xf0,0x07,0x00,0x00
+
+# CHECK: {vex} vpmadd52huq xmm2, xmm3, xmmword ptr [edx - 2048]
+0xc4,0xe2,0xe1,0xb5,0x92,0x00,0xf8,0xff,0xff
+
+# CHECK: {vex} vpmadd52luq ymm2, ymm3, ymm4
+0xc4,0xe2,0xe5,0xb4,0xd4
+
+# CHECK: {vex} vpmadd52luq xmm2, xmm3, xmm4
+0xc4,0xe2,0xe1,0xb4,0xd4
+
+# CHECK: {vex} vpmadd52luq ymm2, ymm3, ymmword ptr [esp + 8*esi + 268435456]
+0xc4,0xe2,0xe5,0xb4,0x94,0xf4,0x00,0x00,0x00,0x10
+
+# CHECK: {vex} vpmadd52luq ymm2, ymm3, ymmword ptr [edi + 4*eax + 291]
+0xc4,0xe2,0xe5,0xb4,0x94,0x87,0x23,0x01,0x00,0x00
+
+# CHECK: {vex} vpmadd52luq ymm2, ymm3, ymmword ptr [eax]
+0xc4,0xe2,0xe5,0xb4,0x10
+
+# CHECK: {vex} vpmadd52luq ymm2, ymm3, ymmword ptr [2*ebp - 1024]
+0xc4,0xe2,0xe5,0xb4,0x14,0x6d,0x00,0xfc,0xff,0xff
+
+# CHECK: {vex} vpmadd52luq ymm2, ymm3, ymmword ptr [ecx + 4064]
+0xc4,0xe2,0xe5,0xb4,0x91,0xe0,0x0f,0x00,0x00
+
+# CHECK: {vex} vpmadd52luq ymm2, ymm3, ymmword ptr [edx - 4096]
+0xc4,0xe2,0xe5,0xb4,0x92,0x00,0xf0,0xff,0xff
+
+# CHECK: {vex} vpmadd52luq xmm2, xmm3, xmmword ptr [esp + 8*esi + 268435456]
+0xc4,0xe2,0xe1,0xb4,0x94,0xf4,0x00,0x00,0x00,0x10
+
+# CHECK: {vex} vpmadd52luq xmm2, xmm3, xmmword ptr [edi + 4*eax + 291]
+0xc4,0xe2,0xe1,0xb4,0x94,0x87,0x23,0x01,0x00,0x00
+
+# CHECK: {vex} vpmadd52luq xmm2, xmm3, xmmword ptr [eax]
+0xc4,0xe2,0xe1,0xb4,0x10
+
+# CHECK: {vex} vpmadd52luq xmm2, xmm3, xmmword ptr [2*ebp - 512]
+0xc4,0xe2,0xe1,0xb4,0x14,0x6d,0x00,0xfe,0xff,0xff
+
+# CHECK: {vex} vpmadd52luq xmm2, xmm3, xmmword ptr [ecx + 2032]
+0xc4,0xe2,0xe1,0xb4,0x91,0xf0,0x07,0x00,0x00
+
+# CHECK: {vex} vpmadd52luq xmm2, xmm3, xmmword ptr [edx - 2048]
+0xc4,0xe2,0xe1,0xb4,0x92,0x00,0xf8,0xff,0xff
+

diff  --git a/llvm/test/MC/Disassembler/X86/x86-64-avx-ifma-att.txt b/llvm/test/MC/Disassembler/X86/x86-64-avx-ifma-att.txt
new file mode 100644
index 0000000000000..7bda5448c5188
--- /dev/null
+++ b/llvm/test/MC/Disassembler/X86/x86-64-avx-ifma-att.txt
@@ -0,0 +1,87 @@
+# REQUIRES: intel_feature_isa_avx_ifma
+# RUN: llvm-mc --disassemble %s -triple=x86_64 | FileCheck %s
+
+# CHECK: {vex} vpmadd52huq %ymm14, %ymm13, %ymm12
+0xc4,0x42,0x95,0xb5,0xe6
+
+# CHECK: {vex} vpmadd52huq %xmm14, %xmm13, %xmm12
+0xc4,0x42,0x91,0xb5,0xe6
+
+# CHECK: {vex} vpmadd52huq  268435456(%rbp,%r14,8), %ymm13, %ymm12
+0xc4,0x22,0x95,0xb5,0xa4,0xf5,0x00,0x00,0x00,0x10
+
+# CHECK: {vex} vpmadd52huq  291(%r8,%rax,4), %ymm13, %ymm12
+0xc4,0x42,0x95,0xb5,0xa4,0x80,0x23,0x01,0x00,0x00
+
+# CHECK: {vex} vpmadd52huq  (%rip), %ymm13, %ymm12
+0xc4,0x62,0x95,0xb5,0x25,0x00,0x00,0x00,0x00
+
+# CHECK: {vex} vpmadd52huq  -1024(,%rbp,2), %ymm13, %ymm12
+0xc4,0x62,0x95,0xb5,0x24,0x6d,0x00,0xfc,0xff,0xff
+
+# CHECK: {vex} vpmadd52huq  4064(%rcx), %ymm13, %ymm12
+0xc4,0x62,0x95,0xb5,0xa1,0xe0,0x0f,0x00,0x00
+
+# CHECK: {vex} vpmadd52huq  -4096(%rdx), %ymm13, %ymm12
+0xc4,0x62,0x95,0xb5,0xa2,0x00,0xf0,0xff,0xff
+
+# CHECK: {vex} vpmadd52huq  268435456(%rbp,%r14,8), %xmm13, %xmm12
+0xc4,0x22,0x91,0xb5,0xa4,0xf5,0x00,0x00,0x00,0x10
+
+# CHECK: {vex} vpmadd52huq  291(%r8,%rax,4), %xmm13, %xmm12
+0xc4,0x42,0x91,0xb5,0xa4,0x80,0x23,0x01,0x00,0x00
+
+# CHECK: {vex} vpmadd52huq  (%rip), %xmm13, %xmm12
+0xc4,0x62,0x91,0xb5,0x25,0x00,0x00,0x00,0x00
+
+# CHECK: {vex} vpmadd52huq  -512(,%rbp,2), %xmm13, %xmm12
+0xc4,0x62,0x91,0xb5,0x24,0x6d,0x00,0xfe,0xff,0xff
+
+# CHECK: {vex} vpmadd52huq  2032(%rcx), %xmm13, %xmm12
+0xc4,0x62,0x91,0xb5,0xa1,0xf0,0x07,0x00,0x00
+
+# CHECK: {vex} vpmadd52huq  -2048(%rdx), %xmm13, %xmm12
+0xc4,0x62,0x91,0xb5,0xa2,0x00,0xf8,0xff,0xff
+
+# CHECK: {vex} vpmadd52luq %ymm14, %ymm13, %ymm12
+0xc4,0x42,0x95,0xb4,0xe6
+
+# CHECK: {vex} vpmadd52luq %xmm14, %xmm13, %xmm12
+0xc4,0x42,0x91,0xb4,0xe6
+
+# CHECK: {vex} vpmadd52luq  268435456(%rbp,%r14,8), %ymm13, %ymm12
+0xc4,0x22,0x95,0xb4,0xa4,0xf5,0x00,0x00,0x00,0x10
+
+# CHECK: {vex} vpmadd52luq  291(%r8,%rax,4), %ymm13, %ymm12
+0xc4,0x42,0x95,0xb4,0xa4,0x80,0x23,0x01,0x00,0x00
+
+# CHECK: {vex} vpmadd52luq  (%rip), %ymm13, %ymm12
+0xc4,0x62,0x95,0xb4,0x25,0x00,0x00,0x00,0x00
+
+# CHECK: {vex} vpmadd52luq  -1024(,%rbp,2), %ymm13, %ymm12
+0xc4,0x62,0x95,0xb4,0x24,0x6d,0x00,0xfc,0xff,0xff
+
+# CHECK: {vex} vpmadd52luq  4064(%rcx), %ymm13, %ymm12
+0xc4,0x62,0x95,0xb4,0xa1,0xe0,0x0f,0x00,0x00
+
+# CHECK: {vex} vpmadd52luq  -4096(%rdx), %ymm13, %ymm12
+0xc4,0x62,0x95,0xb4,0xa2,0x00,0xf0,0xff,0xff
+
+# CHECK: {vex} vpmadd52luq  268435456(%rbp,%r14,8), %xmm13, %xmm12
+0xc4,0x22,0x91,0xb4,0xa4,0xf5,0x00,0x00,0x00,0x10
+
+# CHECK: {vex} vpmadd52luq  291(%r8,%rax,4), %xmm13, %xmm12
+0xc4,0x42,0x91,0xb4,0xa4,0x80,0x23,0x01,0x00,0x00
+
+# CHECK: {vex} vpmadd52luq  (%rip), %xmm13, %xmm12
+0xc4,0x62,0x91,0xb4,0x25,0x00,0x00,0x00,0x00
+
+# CHECK: {vex} vpmadd52luq  -512(,%rbp,2), %xmm13, %xmm12
+0xc4,0x62,0x91,0xb4,0x24,0x6d,0x00,0xfe,0xff,0xff
+
+# CHECK: {vex} vpmadd52luq  2032(%rcx), %xmm13, %xmm12
+0xc4,0x62,0x91,0xb4,0xa1,0xf0,0x07,0x00,0x00
+
+# CHECK: {vex} vpmadd52luq  -2048(%rdx), %xmm13, %xmm12
+0xc4,0x62,0x91,0xb4,0xa2,0x00,0xf8,0xff,0xff
+

diff  --git a/llvm/test/MC/Disassembler/X86/x86-64-avx-ifma-intel.txt b/llvm/test/MC/Disassembler/X86/x86-64-avx-ifma-intel.txt
new file mode 100644
index 0000000000000..e1a611e762af2
--- /dev/null
+++ b/llvm/test/MC/Disassembler/X86/x86-64-avx-ifma-intel.txt
@@ -0,0 +1,87 @@
+# REQUIRES: intel_feature_isa_avx_ifma
+# RUN: llvm-mc --disassemble %s -triple=x86_64 -x86-asm-syntax=intel --output-asm-variant=1 | FileCheck %s
+
+# CHECK: {vex} vpmadd52huq ymm12, ymm13, ymm14
+0xc4,0x42,0x95,0xb5,0xe6
+
+# CHECK: {vex} vpmadd52huq xmm12, xmm13, xmm14
+0xc4,0x42,0x91,0xb5,0xe6
+
+# CHECK: {vex} vpmadd52huq ymm12, ymm13, ymmword ptr [rbp + 8*r14 + 268435456]
+0xc4,0x22,0x95,0xb5,0xa4,0xf5,0x00,0x00,0x00,0x10
+
+# CHECK: {vex} vpmadd52huq ymm12, ymm13, ymmword ptr [r8 + 4*rax + 291]
+0xc4,0x42,0x95,0xb5,0xa4,0x80,0x23,0x01,0x00,0x00
+
+# CHECK: {vex} vpmadd52huq ymm12, ymm13, ymmword ptr [rip]
+0xc4,0x62,0x95,0xb5,0x25,0x00,0x00,0x00,0x00
+
+# CHECK: {vex} vpmadd52huq ymm12, ymm13, ymmword ptr [2*rbp - 1024]
+0xc4,0x62,0x95,0xb5,0x24,0x6d,0x00,0xfc,0xff,0xff
+
+# CHECK: {vex} vpmadd52huq ymm12, ymm13, ymmword ptr [rcx + 4064]
+0xc4,0x62,0x95,0xb5,0xa1,0xe0,0x0f,0x00,0x00
+
+# CHECK: {vex} vpmadd52huq ymm12, ymm13, ymmword ptr [rdx - 4096]
+0xc4,0x62,0x95,0xb5,0xa2,0x00,0xf0,0xff,0xff
+
+# CHECK: {vex} vpmadd52huq xmm12, xmm13, xmmword ptr [rbp + 8*r14 + 268435456]
+0xc4,0x22,0x91,0xb5,0xa4,0xf5,0x00,0x00,0x00,0x10
+
+# CHECK: {vex} vpmadd52huq xmm12, xmm13, xmmword ptr [r8 + 4*rax + 291]
+0xc4,0x42,0x91,0xb5,0xa4,0x80,0x23,0x01,0x00,0x00
+
+# CHECK: {vex} vpmadd52huq xmm12, xmm13, xmmword ptr [rip]
+0xc4,0x62,0x91,0xb5,0x25,0x00,0x00,0x00,0x00
+
+# CHECK: {vex} vpmadd52huq xmm12, xmm13, xmmword ptr [2*rbp - 512]
+0xc4,0x62,0x91,0xb5,0x24,0x6d,0x00,0xfe,0xff,0xff
+
+# CHECK: {vex} vpmadd52huq xmm12, xmm13, xmmword ptr [rcx + 2032]
+0xc4,0x62,0x91,0xb5,0xa1,0xf0,0x07,0x00,0x00
+
+# CHECK: {vex} vpmadd52huq xmm12, xmm13, xmmword ptr [rdx - 2048]
+0xc4,0x62,0x91,0xb5,0xa2,0x00,0xf8,0xff,0xff
+
+# CHECK: {vex} vpmadd52luq ymm12, ymm13, ymm14
+0xc4,0x42,0x95,0xb4,0xe6
+
+# CHECK: {vex} vpmadd52luq xmm12, xmm13, xmm14
+0xc4,0x42,0x91,0xb4,0xe6
+
+# CHECK: {vex} vpmadd52luq ymm12, ymm13, ymmword ptr [rbp + 8*r14 + 268435456]
+0xc4,0x22,0x95,0xb4,0xa4,0xf5,0x00,0x00,0x00,0x10
+
+# CHECK: {vex} vpmadd52luq ymm12, ymm13, ymmword ptr [r8 + 4*rax + 291]
+0xc4,0x42,0x95,0xb4,0xa4,0x80,0x23,0x01,0x00,0x00
+
+# CHECK: {vex} vpmadd52luq ymm12, ymm13, ymmword ptr [rip]
+0xc4,0x62,0x95,0xb4,0x25,0x00,0x00,0x00,0x00
+
+# CHECK: {vex} vpmadd52luq ymm12, ymm13, ymmword ptr [2*rbp - 1024]
+0xc4,0x62,0x95,0xb4,0x24,0x6d,0x00,0xfc,0xff,0xff
+
+# CHECK: {vex} vpmadd52luq ymm12, ymm13, ymmword ptr [rcx + 4064]
+0xc4,0x62,0x95,0xb4,0xa1,0xe0,0x0f,0x00,0x00
+
+# CHECK: {vex} vpmadd52luq ymm12, ymm13, ymmword ptr [rdx - 4096]
+0xc4,0x62,0x95,0xb4,0xa2,0x00,0xf0,0xff,0xff
+
+# CHECK: {vex} vpmadd52luq xmm12, xmm13, xmmword ptr [rbp + 8*r14 + 268435456]
+0xc4,0x22,0x91,0xb4,0xa4,0xf5,0x00,0x00,0x00,0x10
+
+# CHECK: {vex} vpmadd52luq xmm12, xmm13, xmmword ptr [r8 + 4*rax + 291]
+0xc4,0x42,0x91,0xb4,0xa4,0x80,0x23,0x01,0x00,0x00
+
+# CHECK: {vex} vpmadd52luq xmm12, xmm13, xmmword ptr [rip]
+0xc4,0x62,0x91,0xb4,0x25,0x00,0x00,0x00,0x00
+
+# CHECK: {vex} vpmadd52luq xmm12, xmm13, xmmword ptr [2*rbp - 512]
+0xc4,0x62,0x91,0xb4,0x24,0x6d,0x00,0xfe,0xff,0xff
+
+# CHECK: {vex} vpmadd52luq xmm12, xmm13, xmmword ptr [rcx + 2032]
+0xc4,0x62,0x91,0xb4,0xa1,0xf0,0x07,0x00,0x00
+
+# CHECK: {vex} vpmadd52luq xmm12, xmm13, xmmword ptr [rdx - 2048]
+0xc4,0x62,0x91,0xb4,0xa2,0x00,0xf8,0xff,0xff
+

diff  --git a/llvm/test/MC/X86/avx-ifma-att.s b/llvm/test/MC/X86/avx-ifma-att.s
new file mode 100644
index 0000000000000..45f7e1122bac8
--- /dev/null
+++ b/llvm/test/MC/X86/avx-ifma-att.s
@@ -0,0 +1,115 @@
+// REQUIRES: intel_feature_isa_avx_ifma
+// RUN: llvm-mc -triple i686-unknown-unknown -mattr=+avxifma --show-encoding %s | FileCheck %s
+
+// CHECK: {vex} vpmadd52huq %ymm4, %ymm3, %ymm2
+// CHECK: encoding: [0xc4,0xe2,0xe5,0xb5,0xd4]
+     {vex} vpmadd52huq %ymm4, %ymm3, %ymm2
+
+// CHECK: {vex} vpmadd52huq %xmm4, %xmm3, %xmm2
+// CHECK: encoding: [0xc4,0xe2,0xe1,0xb5,0xd4]
+     {vex} vpmadd52huq %xmm4, %xmm3, %xmm2
+
+// CHECK: {vex} vpmadd52huq  268435456(%esp,%esi,8), %ymm3, %ymm2
+// CHECK: encoding: [0xc4,0xe2,0xe5,0xb5,0x94,0xf4,0x00,0x00,0x00,0x10]
+     {vex} vpmadd52huq  268435456(%esp,%esi,8), %ymm3, %ymm2
+
+// CHECK: {vex} vpmadd52huq  291(%edi,%eax,4), %ymm3, %ymm2
+// CHECK: encoding: [0xc4,0xe2,0xe5,0xb5,0x94,0x87,0x23,0x01,0x00,0x00]
+     {vex} vpmadd52huq  291(%edi,%eax,4), %ymm3, %ymm2
+
+// CHECK: {vex} vpmadd52huq  (%eax), %ymm3, %ymm2
+// CHECK: encoding: [0xc4,0xe2,0xe5,0xb5,0x10]
+     {vex} vpmadd52huq  (%eax), %ymm3, %ymm2
+
+// CHECK: {vex} vpmadd52huq  -1024(,%ebp,2), %ymm3, %ymm2
+// CHECK: encoding: [0xc4,0xe2,0xe5,0xb5,0x14,0x6d,0x00,0xfc,0xff,0xff]
+     {vex} vpmadd52huq  -1024(,%ebp,2), %ymm3, %ymm2
+
+// CHECK: {vex} vpmadd52huq  4064(%ecx), %ymm3, %ymm2
+// CHECK: encoding: [0xc4,0xe2,0xe5,0xb5,0x91,0xe0,0x0f,0x00,0x00]
+     {vex} vpmadd52huq  4064(%ecx), %ymm3, %ymm2
+
+// CHECK: {vex} vpmadd52huq  -4096(%edx), %ymm3, %ymm2
+// CHECK: encoding: [0xc4,0xe2,0xe5,0xb5,0x92,0x00,0xf0,0xff,0xff]
+     {vex} vpmadd52huq  -4096(%edx), %ymm3, %ymm2
+
+// CHECK: {vex} vpmadd52huq  268435456(%esp,%esi,8), %xmm3, %xmm2
+// CHECK: encoding: [0xc4,0xe2,0xe1,0xb5,0x94,0xf4,0x00,0x00,0x00,0x10]
+     {vex} vpmadd52huq  268435456(%esp,%esi,8), %xmm3, %xmm2
+
+// CHECK: {vex} vpmadd52huq  291(%edi,%eax,4), %xmm3, %xmm2
+// CHECK: encoding: [0xc4,0xe2,0xe1,0xb5,0x94,0x87,0x23,0x01,0x00,0x00]
+     {vex} vpmadd52huq  291(%edi,%eax,4), %xmm3, %xmm2
+
+// CHECK: {vex} vpmadd52huq  (%eax), %xmm3, %xmm2
+// CHECK: encoding: [0xc4,0xe2,0xe1,0xb5,0x10]
+     {vex} vpmadd52huq  (%eax), %xmm3, %xmm2
+
+// CHECK: {vex} vpmadd52huq  -512(,%ebp,2), %xmm3, %xmm2
+// CHECK: encoding: [0xc4,0xe2,0xe1,0xb5,0x14,0x6d,0x00,0xfe,0xff,0xff]
+     {vex} vpmadd52huq  -512(,%ebp,2), %xmm3, %xmm2
+
+// CHECK: {vex} vpmadd52huq  2032(%ecx), %xmm3, %xmm2
+// CHECK: encoding: [0xc4,0xe2,0xe1,0xb5,0x91,0xf0,0x07,0x00,0x00]
+     {vex} vpmadd52huq  2032(%ecx), %xmm3, %xmm2
+
+// CHECK: {vex} vpmadd52huq  -2048(%edx), %xmm3, %xmm2
+// CHECK: encoding: [0xc4,0xe2,0xe1,0xb5,0x92,0x00,0xf8,0xff,0xff]
+     {vex} vpmadd52huq  -2048(%edx), %xmm3, %xmm2
+
+// CHECK: {vex} vpmadd52luq %ymm4, %ymm3, %ymm2
+// CHECK: encoding: [0xc4,0xe2,0xe5,0xb4,0xd4]
+     {vex} vpmadd52luq %ymm4, %ymm3, %ymm2
+
+// CHECK: {vex} vpmadd52luq %xmm4, %xmm3, %xmm2
+// CHECK: encoding: [0xc4,0xe2,0xe1,0xb4,0xd4]
+     {vex} vpmadd52luq %xmm4, %xmm3, %xmm2
+
+// CHECK: {vex} vpmadd52luq  268435456(%esp,%esi,8), %ymm3, %ymm2
+// CHECK: encoding: [0xc4,0xe2,0xe5,0xb4,0x94,0xf4,0x00,0x00,0x00,0x10]
+     {vex} vpmadd52luq  268435456(%esp,%esi,8), %ymm3, %ymm2
+
+// CHECK: {vex} vpmadd52luq  291(%edi,%eax,4), %ymm3, %ymm2
+// CHECK: encoding: [0xc4,0xe2,0xe5,0xb4,0x94,0x87,0x23,0x01,0x00,0x00]
+     {vex} vpmadd52luq  291(%edi,%eax,4), %ymm3, %ymm2
+
+// CHECK: {vex} vpmadd52luq  (%eax), %ymm3, %ymm2
+// CHECK: encoding: [0xc4,0xe2,0xe5,0xb4,0x10]
+     {vex} vpmadd52luq  (%eax), %ymm3, %ymm2
+
+// CHECK: {vex} vpmadd52luq  -1024(,%ebp,2), %ymm3, %ymm2
+// CHECK: encoding: [0xc4,0xe2,0xe5,0xb4,0x14,0x6d,0x00,0xfc,0xff,0xff]
+     {vex} vpmadd52luq  -1024(,%ebp,2), %ymm3, %ymm2
+
+// CHECK: {vex} vpmadd52luq  4064(%ecx), %ymm3, %ymm2
+// CHECK: encoding: [0xc4,0xe2,0xe5,0xb4,0x91,0xe0,0x0f,0x00,0x00]
+     {vex} vpmadd52luq  4064(%ecx), %ymm3, %ymm2
+
+// CHECK: {vex} vpmadd52luq  -4096(%edx), %ymm3, %ymm2
+// CHECK: encoding: [0xc4,0xe2,0xe5,0xb4,0x92,0x00,0xf0,0xff,0xff]
+     {vex} vpmadd52luq  -4096(%edx), %ymm3, %ymm2
+
+// CHECK: {vex} vpmadd52luq  268435456(%esp,%esi,8), %xmm3, %xmm2
+// CHECK: encoding: [0xc4,0xe2,0xe1,0xb4,0x94,0xf4,0x00,0x00,0x00,0x10]
+     {vex} vpmadd52luq  268435456(%esp,%esi,8), %xmm3, %xmm2
+
+// CHECK: {vex} vpmadd52luq  291(%edi,%eax,4), %xmm3, %xmm2
+// CHECK: encoding: [0xc4,0xe2,0xe1,0xb4,0x94,0x87,0x23,0x01,0x00,0x00]
+     {vex} vpmadd52luq  291(%edi,%eax,4), %xmm3, %xmm2
+
+// CHECK: {vex} vpmadd52luq  (%eax), %xmm3, %xmm2
+// CHECK: encoding: [0xc4,0xe2,0xe1,0xb4,0x10]
+     {vex} vpmadd52luq  (%eax), %xmm3, %xmm2
+
+// CHECK: {vex} vpmadd52luq  -512(,%ebp,2), %xmm3, %xmm2
+// CHECK: encoding: [0xc4,0xe2,0xe1,0xb4,0x14,0x6d,0x00,0xfe,0xff,0xff]
+     {vex} vpmadd52luq  -512(,%ebp,2), %xmm3, %xmm2
+
+// CHECK: {vex} vpmadd52luq  2032(%ecx), %xmm3, %xmm2
+// CHECK: encoding: [0xc4,0xe2,0xe1,0xb4,0x91,0xf0,0x07,0x00,0x00]
+     {vex} vpmadd52luq  2032(%ecx), %xmm3, %xmm2
+
+// CHECK: {vex} vpmadd52luq  -2048(%edx), %xmm3, %xmm2
+// CHECK: encoding: [0xc4,0xe2,0xe1,0xb4,0x92,0x00,0xf8,0xff,0xff]
+     {vex} vpmadd52luq  -2048(%edx), %xmm3, %xmm2
+

diff  --git a/llvm/test/MC/X86/avx-ifma-intel.s b/llvm/test/MC/X86/avx-ifma-intel.s
new file mode 100644
index 0000000000000..b5ba74f67d773
--- /dev/null
+++ b/llvm/test/MC/X86/avx-ifma-intel.s
@@ -0,0 +1,115 @@
+// REQUIRES: intel_feature_isa_avx_ifma
+// RUN: llvm-mc -triple i686-unknown-unknown -mattr=+avxifma -x86-asm-syntax=intel -output-asm-variant=1 --show-encoding %s | FileCheck %s
+
+// CHECK: {vex} vpmadd52huq ymm2, ymm3, ymm4
+// CHECK: encoding: [0xc4,0xe2,0xe5,0xb5,0xd4]
+     {vex} vpmadd52huq ymm2, ymm3, ymm4
+
+// CHECK: {vex} vpmadd52huq xmm2, xmm3, xmm4
+// CHECK: encoding: [0xc4,0xe2,0xe1,0xb5,0xd4]
+     {vex} vpmadd52huq xmm2, xmm3, xmm4
+
+// CHECK: {vex} vpmadd52huq ymm2, ymm3, ymmword ptr [esp + 8*esi + 268435456]
+// CHECK: encoding: [0xc4,0xe2,0xe5,0xb5,0x94,0xf4,0x00,0x00,0x00,0x10]
+     {vex} vpmadd52huq ymm2, ymm3, ymmword ptr [esp + 8*esi + 268435456]
+
+// CHECK: {vex} vpmadd52huq ymm2, ymm3, ymmword ptr [edi + 4*eax + 291]
+// CHECK: encoding: [0xc4,0xe2,0xe5,0xb5,0x94,0x87,0x23,0x01,0x00,0x00]
+     {vex} vpmadd52huq ymm2, ymm3, ymmword ptr [edi + 4*eax + 291]
+
+// CHECK: {vex} vpmadd52huq ymm2, ymm3, ymmword ptr [eax]
+// CHECK: encoding: [0xc4,0xe2,0xe5,0xb5,0x10]
+     {vex} vpmadd52huq ymm2, ymm3, ymmword ptr [eax]
+
+// CHECK: {vex} vpmadd52huq ymm2, ymm3, ymmword ptr [2*ebp - 1024]
+// CHECK: encoding: [0xc4,0xe2,0xe5,0xb5,0x14,0x6d,0x00,0xfc,0xff,0xff]
+     {vex} vpmadd52huq ymm2, ymm3, ymmword ptr [2*ebp - 1024]
+
+// CHECK: {vex} vpmadd52huq ymm2, ymm3, ymmword ptr [ecx + 4064]
+// CHECK: encoding: [0xc4,0xe2,0xe5,0xb5,0x91,0xe0,0x0f,0x00,0x00]
+     {vex} vpmadd52huq ymm2, ymm3, ymmword ptr [ecx + 4064]
+
+// CHECK: {vex} vpmadd52huq ymm2, ymm3, ymmword ptr [edx - 4096]
+// CHECK: encoding: [0xc4,0xe2,0xe5,0xb5,0x92,0x00,0xf0,0xff,0xff]
+     {vex} vpmadd52huq ymm2, ymm3, ymmword ptr [edx - 4096]
+
+// CHECK: {vex} vpmadd52huq xmm2, xmm3, xmmword ptr [esp + 8*esi + 268435456]
+// CHECK: encoding: [0xc4,0xe2,0xe1,0xb5,0x94,0xf4,0x00,0x00,0x00,0x10]
+     {vex} vpmadd52huq xmm2, xmm3, xmmword ptr [esp + 8*esi + 268435456]
+
+// CHECK: {vex} vpmadd52huq xmm2, xmm3, xmmword ptr [edi + 4*eax + 291]
+// CHECK: encoding: [0xc4,0xe2,0xe1,0xb5,0x94,0x87,0x23,0x01,0x00,0x00]
+     {vex} vpmadd52huq xmm2, xmm3, xmmword ptr [edi + 4*eax + 291]
+
+// CHECK: {vex} vpmadd52huq xmm2, xmm3, xmmword ptr [eax]
+// CHECK: encoding: [0xc4,0xe2,0xe1,0xb5,0x10]
+     {vex} vpmadd52huq xmm2, xmm3, xmmword ptr [eax]
+
+// CHECK: {vex} vpmadd52huq xmm2, xmm3, xmmword ptr [2*ebp - 512]
+// CHECK: encoding: [0xc4,0xe2,0xe1,0xb5,0x14,0x6d,0x00,0xfe,0xff,0xff]
+     {vex} vpmadd52huq xmm2, xmm3, xmmword ptr [2*ebp - 512]
+
+// CHECK: {vex} vpmadd52huq xmm2, xmm3, xmmword ptr [ecx + 2032]
+// CHECK: encoding: [0xc4,0xe2,0xe1,0xb5,0x91,0xf0,0x07,0x00,0x00]
+     {vex} vpmadd52huq xmm2, xmm3, xmmword ptr [ecx + 2032]
+
+// CHECK: {vex} vpmadd52huq xmm2, xmm3, xmmword ptr [edx - 2048]
+// CHECK: encoding: [0xc4,0xe2,0xe1,0xb5,0x92,0x00,0xf8,0xff,0xff]
+     {vex} vpmadd52huq xmm2, xmm3, xmmword ptr [edx - 2048]
+
+// CHECK: {vex} vpmadd52luq ymm2, ymm3, ymm4
+// CHECK: encoding: [0xc4,0xe2,0xe5,0xb4,0xd4]
+     {vex} vpmadd52luq ymm2, ymm3, ymm4
+
+// CHECK: {vex} vpmadd52luq xmm2, xmm3, xmm4
+// CHECK: encoding: [0xc4,0xe2,0xe1,0xb4,0xd4]
+     {vex} vpmadd52luq xmm2, xmm3, xmm4
+
+// CHECK: {vex} vpmadd52luq ymm2, ymm3, ymmword ptr [esp + 8*esi + 268435456]
+// CHECK: encoding: [0xc4,0xe2,0xe5,0xb4,0x94,0xf4,0x00,0x00,0x00,0x10]
+     {vex} vpmadd52luq ymm2, ymm3, ymmword ptr [esp + 8*esi + 268435456]
+
+// CHECK: {vex} vpmadd52luq ymm2, ymm3, ymmword ptr [edi + 4*eax + 291]
+// CHECK: encoding: [0xc4,0xe2,0xe5,0xb4,0x94,0x87,0x23,0x01,0x00,0x00]
+     {vex} vpmadd52luq ymm2, ymm3, ymmword ptr [edi + 4*eax + 291]
+
+// CHECK: {vex} vpmadd52luq ymm2, ymm3, ymmword ptr [eax]
+// CHECK: encoding: [0xc4,0xe2,0xe5,0xb4,0x10]
+     {vex} vpmadd52luq ymm2, ymm3, ymmword ptr [eax]
+
+// CHECK: {vex} vpmadd52luq ymm2, ymm3, ymmword ptr [2*ebp - 1024]
+// CHECK: encoding: [0xc4,0xe2,0xe5,0xb4,0x14,0x6d,0x00,0xfc,0xff,0xff]
+     {vex} vpmadd52luq ymm2, ymm3, ymmword ptr [2*ebp - 1024]
+
+// CHECK: {vex} vpmadd52luq ymm2, ymm3, ymmword ptr [ecx + 4064]
+// CHECK: encoding: [0xc4,0xe2,0xe5,0xb4,0x91,0xe0,0x0f,0x00,0x00]
+     {vex} vpmadd52luq ymm2, ymm3, ymmword ptr [ecx + 4064]
+
+// CHECK: {vex} vpmadd52luq ymm2, ymm3, ymmword ptr [edx - 4096]
+// CHECK: encoding: [0xc4,0xe2,0xe5,0xb4,0x92,0x00,0xf0,0xff,0xff]
+     {vex} vpmadd52luq ymm2, ymm3, ymmword ptr [edx - 4096]
+
+// CHECK: {vex} vpmadd52luq xmm2, xmm3, xmmword ptr [esp + 8*esi + 268435456]
+// CHECK: encoding: [0xc4,0xe2,0xe1,0xb4,0x94,0xf4,0x00,0x00,0x00,0x10]
+     {vex} vpmadd52luq xmm2, xmm3, xmmword ptr [esp + 8*esi + 268435456]
+
+// CHECK: {vex} vpmadd52luq xmm2, xmm3, xmmword ptr [edi + 4*eax + 291]
+// CHECK: encoding: [0xc4,0xe2,0xe1,0xb4,0x94,0x87,0x23,0x01,0x00,0x00]
+     {vex} vpmadd52luq xmm2, xmm3, xmmword ptr [edi + 4*eax + 291]
+
+// CHECK: {vex} vpmadd52luq xmm2, xmm3, xmmword ptr [eax]
+// CHECK: encoding: [0xc4,0xe2,0xe1,0xb4,0x10]
+     {vex} vpmadd52luq xmm2, xmm3, xmmword ptr [eax]
+
+// CHECK: {vex} vpmadd52luq xmm2, xmm3, xmmword ptr [2*ebp - 512]
+// CHECK: encoding: [0xc4,0xe2,0xe1,0xb4,0x14,0x6d,0x00,0xfe,0xff,0xff]
+     {vex} vpmadd52luq xmm2, xmm3, xmmword ptr [2*ebp - 512]
+
+// CHECK: {vex} vpmadd52luq xmm2, xmm3, xmmword ptr [ecx + 2032]
+// CHECK: encoding: [0xc4,0xe2,0xe1,0xb4,0x91,0xf0,0x07,0x00,0x00]
+     {vex} vpmadd52luq xmm2, xmm3, xmmword ptr [ecx + 2032]
+
+// CHECK: {vex} vpmadd52luq xmm2, xmm3, xmmword ptr [edx - 2048]
+// CHECK: encoding: [0xc4,0xe2,0xe1,0xb4,0x92,0x00,0xf8,0xff,0xff]
+     {vex} vpmadd52luq xmm2, xmm3, xmmword ptr [edx - 2048]
+

diff  --git a/llvm/test/MC/X86/x86-64-avx-ifma-att.s b/llvm/test/MC/X86/x86-64-avx-ifma-att.s
new file mode 100644
index 0000000000000..15f4f9b35846e
--- /dev/null
+++ b/llvm/test/MC/X86/x86-64-avx-ifma-att.s
@@ -0,0 +1,115 @@
+// REQUIRES: intel_feature_isa_avx_ifma
+// RUN: llvm-mc -triple=x86_64-unknown-unknown -mattr=+avxifma --show-encoding < %s  | FileCheck %s
+
+// CHECK: {vex} vpmadd52huq %ymm14, %ymm13, %ymm12
+// CHECK: encoding: [0xc4,0x42,0x95,0xb5,0xe6]
+     {vex} vpmadd52huq %ymm14, %ymm13, %ymm12
+
+// CHECK: {vex} vpmadd52huq %xmm14, %xmm13, %xmm12
+// CHECK: encoding: [0xc4,0x42,0x91,0xb5,0xe6]
+     {vex} vpmadd52huq %xmm14, %xmm13, %xmm12
+
+// CHECK: {vex} vpmadd52huq  268435456(%rbp,%r14,8), %ymm13, %ymm12
+// CHECK: encoding: [0xc4,0x22,0x95,0xb5,0xa4,0xf5,0x00,0x00,0x00,0x10]
+     {vex} vpmadd52huq  268435456(%rbp,%r14,8), %ymm13, %ymm12
+
+// CHECK: {vex} vpmadd52huq  291(%r8,%rax,4), %ymm13, %ymm12
+// CHECK: encoding: [0xc4,0x42,0x95,0xb5,0xa4,0x80,0x23,0x01,0x00,0x00]
+     {vex} vpmadd52huq  291(%r8,%rax,4), %ymm13, %ymm12
+
+// CHECK: {vex} vpmadd52huq  (%rip), %ymm13, %ymm12
+// CHECK: encoding: [0xc4,0x62,0x95,0xb5,0x25,0x00,0x00,0x00,0x00]
+     {vex} vpmadd52huq  (%rip), %ymm13, %ymm12
+
+// CHECK: {vex} vpmadd52huq  -1024(,%rbp,2), %ymm13, %ymm12
+// CHECK: encoding: [0xc4,0x62,0x95,0xb5,0x24,0x6d,0x00,0xfc,0xff,0xff]
+     {vex} vpmadd52huq  -1024(,%rbp,2), %ymm13, %ymm12
+
+// CHECK: {vex} vpmadd52huq  4064(%rcx), %ymm13, %ymm12
+// CHECK: encoding: [0xc4,0x62,0x95,0xb5,0xa1,0xe0,0x0f,0x00,0x00]
+     {vex} vpmadd52huq  4064(%rcx), %ymm13, %ymm12
+
+// CHECK: {vex} vpmadd52huq  -4096(%rdx), %ymm13, %ymm12
+// CHECK: encoding: [0xc4,0x62,0x95,0xb5,0xa2,0x00,0xf0,0xff,0xff]
+     {vex} vpmadd52huq  -4096(%rdx), %ymm13, %ymm12
+
+// CHECK: {vex} vpmadd52huq  268435456(%rbp,%r14,8), %xmm13, %xmm12
+// CHECK: encoding: [0xc4,0x22,0x91,0xb5,0xa4,0xf5,0x00,0x00,0x00,0x10]
+     {vex} vpmadd52huq  268435456(%rbp,%r14,8), %xmm13, %xmm12
+
+// CHECK: {vex} vpmadd52huq  291(%r8,%rax,4), %xmm13, %xmm12
+// CHECK: encoding: [0xc4,0x42,0x91,0xb5,0xa4,0x80,0x23,0x01,0x00,0x00]
+     {vex} vpmadd52huq  291(%r8,%rax,4), %xmm13, %xmm12
+
+// CHECK: {vex} vpmadd52huq  (%rip), %xmm13, %xmm12
+// CHECK: encoding: [0xc4,0x62,0x91,0xb5,0x25,0x00,0x00,0x00,0x00]
+     {vex} vpmadd52huq  (%rip), %xmm13, %xmm12
+
+// CHECK: {vex} vpmadd52huq  -512(,%rbp,2), %xmm13, %xmm12
+// CHECK: encoding: [0xc4,0x62,0x91,0xb5,0x24,0x6d,0x00,0xfe,0xff,0xff]
+     {vex} vpmadd52huq  -512(,%rbp,2), %xmm13, %xmm12
+
+// CHECK: {vex} vpmadd52huq  2032(%rcx), %xmm13, %xmm12
+// CHECK: encoding: [0xc4,0x62,0x91,0xb5,0xa1,0xf0,0x07,0x00,0x00]
+     {vex} vpmadd52huq  2032(%rcx), %xmm13, %xmm12
+
+// CHECK: {vex} vpmadd52huq  -2048(%rdx), %xmm13, %xmm12
+// CHECK: encoding: [0xc4,0x62,0x91,0xb5,0xa2,0x00,0xf8,0xff,0xff]
+     {vex} vpmadd52huq  -2048(%rdx), %xmm13, %xmm12
+
+// CHECK: {vex} vpmadd52luq %ymm14, %ymm13, %ymm12
+// CHECK: encoding: [0xc4,0x42,0x95,0xb4,0xe6]
+     {vex} vpmadd52luq %ymm14, %ymm13, %ymm12
+
+// CHECK: {vex} vpmadd52luq %xmm14, %xmm13, %xmm12
+// CHECK: encoding: [0xc4,0x42,0x91,0xb4,0xe6]
+     {vex} vpmadd52luq %xmm14, %xmm13, %xmm12
+
+// CHECK: {vex} vpmadd52luq  268435456(%rbp,%r14,8), %ymm13, %ymm12
+// CHECK: encoding: [0xc4,0x22,0x95,0xb4,0xa4,0xf5,0x00,0x00,0x00,0x10]
+     {vex} vpmadd52luq  268435456(%rbp,%r14,8), %ymm13, %ymm12
+
+// CHECK: {vex} vpmadd52luq  291(%r8,%rax,4), %ymm13, %ymm12
+// CHECK: encoding: [0xc4,0x42,0x95,0xb4,0xa4,0x80,0x23,0x01,0x00,0x00]
+     {vex} vpmadd52luq  291(%r8,%rax,4), %ymm13, %ymm12
+
+// CHECK: {vex} vpmadd52luq  (%rip), %ymm13, %ymm12
+// CHECK: encoding: [0xc4,0x62,0x95,0xb4,0x25,0x00,0x00,0x00,0x00]
+     {vex} vpmadd52luq  (%rip), %ymm13, %ymm12
+
+// CHECK: {vex} vpmadd52luq  -1024(,%rbp,2), %ymm13, %ymm12
+// CHECK: encoding: [0xc4,0x62,0x95,0xb4,0x24,0x6d,0x00,0xfc,0xff,0xff]
+     {vex} vpmadd52luq  -1024(,%rbp,2), %ymm13, %ymm12
+
+// CHECK: {vex} vpmadd52luq  4064(%rcx), %ymm13, %ymm12
+// CHECK: encoding: [0xc4,0x62,0x95,0xb4,0xa1,0xe0,0x0f,0x00,0x00]
+     {vex} vpmadd52luq  4064(%rcx), %ymm13, %ymm12
+
+// CHECK: {vex} vpmadd52luq  -4096(%rdx), %ymm13, %ymm12
+// CHECK: encoding: [0xc4,0x62,0x95,0xb4,0xa2,0x00,0xf0,0xff,0xff]
+     {vex} vpmadd52luq  -4096(%rdx), %ymm13, %ymm12
+
+// CHECK: {vex} vpmadd52luq  268435456(%rbp,%r14,8), %xmm13, %xmm12
+// CHECK: encoding: [0xc4,0x22,0x91,0xb4,0xa4,0xf5,0x00,0x00,0x00,0x10]
+     {vex} vpmadd52luq  268435456(%rbp,%r14,8), %xmm13, %xmm12
+
+// CHECK: {vex} vpmadd52luq  291(%r8,%rax,4), %xmm13, %xmm12
+// CHECK: encoding: [0xc4,0x42,0x91,0xb4,0xa4,0x80,0x23,0x01,0x00,0x00]
+     {vex} vpmadd52luq  291(%r8,%rax,4), %xmm13, %xmm12
+
+// CHECK: {vex} vpmadd52luq  (%rip), %xmm13, %xmm12
+// CHECK: encoding: [0xc4,0x62,0x91,0xb4,0x25,0x00,0x00,0x00,0x00]
+     {vex} vpmadd52luq  (%rip), %xmm13, %xmm12
+
+// CHECK: {vex} vpmadd52luq  -512(,%rbp,2), %xmm13, %xmm12
+// CHECK: encoding: [0xc4,0x62,0x91,0xb4,0x24,0x6d,0x00,0xfe,0xff,0xff]
+     {vex} vpmadd52luq  -512(,%rbp,2), %xmm13, %xmm12
+
+// CHECK: {vex} vpmadd52luq  2032(%rcx), %xmm13, %xmm12
+// CHECK: encoding: [0xc4,0x62,0x91,0xb4,0xa1,0xf0,0x07,0x00,0x00]
+     {vex} vpmadd52luq  2032(%rcx), %xmm13, %xmm12
+
+// CHECK: {vex} vpmadd52luq  -2048(%rdx), %xmm13, %xmm12
+// CHECK: encoding: [0xc4,0x62,0x91,0xb4,0xa2,0x00,0xf8,0xff,0xff]
+     {vex} vpmadd52luq  -2048(%rdx), %xmm13, %xmm12
+


        


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