craig.topper created this revision.
craig.topper added reviewers: delena, igorb.
craig.topper added a subscriber: cfe-commits.

Inverting the mask argument currently fails isel and even if that was fixed it 
does not reflect the intended semantics of the intrinsic.


https://reviews.llvm.org/D26019

Files:
  include/clang/Basic/BuiltinsX86.def
  lib/Headers/avx512fintrin.h
  test/CodeGen/avx512f-builtins.c

Index: test/CodeGen/avx512f-builtins.c
===================================================================
--- test/CodeGen/avx512f-builtins.c
+++ test/CodeGen/avx512f-builtins.c
@@ -5773,13 +5773,13 @@
 
 __m128 test_mm_mask3_fmsub_ss(__m128 __W, __m128 __X, __m128 __Y, __mmask8 __U){
   // CHECK-LABEL: @test_mm_mask3_fmsub_ss
-  // CHECK: @llvm.x86.avx512.mask3.vfmadd.ss
+  // CHECK: @llvm.x86.avx512.mask3.vfmsub.ss
   return _mm_mask3_fmsub_ss(__W, __X, __Y, __U);
 }
 
 __m128 test_mm_mask3_fmsub_round_ss(__m128 __W, __m128 __X, __m128 __Y, __mmask8 __U){
   // CHECK-LABEL: @test_mm_mask3_fmsub_round_ss
-  // CHECK: @llvm.x86.avx512.mask3.vfmadd.ss
+  // CHECK: @llvm.x86.avx512.mask3.vfmsub.ss
   return _mm_mask3_fmsub_round_ss(__W, __X, __Y, __U, _MM_FROUND_CUR_DIRECTION);
 }
 
@@ -5845,13 +5845,13 @@
 
 __m128 test_mm_mask3_fnmsub_ss(__m128 __W, __m128 __X, __m128 __Y, __mmask8 __U){
   // CHECK-LABEL: @test_mm_mask3_fnmsub_ss
-  // CHECK: @llvm.x86.avx512.mask3.vfmadd.ss
+  // CHECK: @llvm.x86.avx512.mask3.vfnmsub.ss
   return _mm_mask3_fnmsub_ss(__W, __X, __Y, __U);
 }
 
 __m128 test_mm_mask3_fnmsub_round_ss(__m128 __W, __m128 __X, __m128 __Y, __mmask8 __U){
   // CHECK-LABEL: @test_mm_mask3_fnmsub_round_ss
-  // CHECK: @llvm.x86.avx512.mask3.vfmadd.ss
+  // CHECK: @llvm.x86.avx512.mask3.vfnmsub.ss
   return _mm_mask3_fnmsub_round_ss(__W, __X, __Y, __U, _MM_FROUND_CUR_DIRECTION);
 }
 
@@ -5917,13 +5917,13 @@
 
 __m128d test_mm_mask3_fmsub_sd(__m128d __W, __m128d __X, __m128d __Y, __mmask8 __U){
   // CHECK-LABEL: @test_mm_mask3_fmsub_sd
-  // CHECK: @llvm.x86.avx512.mask3.vfmadd.sd
+  // CHECK: @llvm.x86.avx512.mask3.vfmsub.sd
   return _mm_mask3_fmsub_sd(__W, __X, __Y, __U);
 }
 
 __m128d test_mm_mask3_fmsub_round_sd(__m128d __W, __m128d __X, __m128d __Y, __mmask8 __U){
   // CHECK-LABEL: @test_mm_mask3_fmsub_round_sd
-  // CHECK: @llvm.x86.avx512.mask3.vfmadd.sd
+  // CHECK: @llvm.x86.avx512.mask3.vfmsub.sd
   return _mm_mask3_fmsub_round_sd(__W, __X, __Y, __U, _MM_FROUND_CUR_DIRECTION);
 }
 
@@ -5989,13 +5989,13 @@
 
 __m128d test_mm_mask3_fnmsub_sd(__m128d __W, __m128d __X, __m128d __Y, __mmask8 __U){
   // CHECK-LABEL: @test_mm_mask3_fnmsub_sd
-  // CHECK: @llvm.x86.avx512.mask3.vfmadd.sd
+  // CHECK: @llvm.x86.avx512.mask3.vfnmsub.sd
   return _mm_mask3_fnmsub_sd(__W, __X, __Y, __U);
 }
 
 __m128d test_mm_mask3_fnmsub_round_sd(__m128d __W, __m128d __X, __m128d __Y, __mmask8 __U){
   // CHECK-LABEL: @test_mm_mask3_fnmsub_round_sd
-  // CHECK: @llvm.x86.avx512.mask3.vfmadd.sd
+  // CHECK: @llvm.x86.avx512.mask3.vfnmsub.sd
   return _mm_mask3_fnmsub_round_sd(__W, __X, __Y, __U, _MM_FROUND_CUR_DIRECTION);
 }
 
Index: lib/Headers/avx512fintrin.h
===================================================================
--- lib/Headers/avx512fintrin.h
+++ lib/Headers/avx512fintrin.h
@@ -8418,17 +8418,17 @@
 static __inline__ __m128 __DEFAULT_FN_ATTRS
 _mm_mask3_fmsub_ss (__m128 __W, __m128 __X, __m128 __Y, __mmask8 __U)
 {
- return (__m128) __builtin_ia32_vfmaddss3_mask3 ((__v4sf) __W,
+ return (__m128) __builtin_ia32_vfmsubss3_mask3 ((__v4sf) __W,
           (__v4sf) __X,
-          -(__v4sf) __Y,
+          (__v4sf) __Y,
           (__mmask8) __U,
           _MM_FROUND_CUR_DIRECTION);
 }
 
 #define _mm_mask3_fmsub_round_ss(W, X, Y, U, R) __extension__ ({\
-  (__m128)__builtin_ia32_vfmaddss3_mask3((__v4sf)(__m128)(W), \
+  (__m128)__builtin_ia32_vfmsubss3_mask3((__v4sf)(__m128)(W), \
                                          (__v4sf)(__m128)(X), \
-                                         -(__v4sf)(__m128)(Y), (__mmask8)(U), \
+                                         (__v4sf)(__m128)(Y), (__mmask8)(U), \
                                          (int)(R)); })
 
 static __inline__ __m128 __DEFAULT_FN_ATTRS
@@ -8514,17 +8514,17 @@
 static __inline__ __m128 __DEFAULT_FN_ATTRS
 _mm_mask3_fnmsub_ss (__m128 __W, __m128 __X, __m128 __Y, __mmask8 __U)
 {
- return (__m128) __builtin_ia32_vfmaddss3_mask3 (-(__v4sf) __W,
+ return (__m128) __builtin_ia32_vfnmsubss3_mask3 ((__v4sf) __W,
           (__v4sf) __X,
-          -(__v4sf) __Y,
+          (__v4sf) __Y,
           (__mmask8) __U,
           _MM_FROUND_CUR_DIRECTION);
 }
 
 #define _mm_mask3_fnmsub_round_ss(W, X, Y, U, R) __extension__({\
-  (__m128)__builtin_ia32_vfmaddss3_mask3(-(__v4sf)(__m128)(W), \
+  (__m128)__builtin_ia32_vfnmsubss3_mask3((__v4sf)(__m128)(W), \
                                          (__v4sf)(__m128)(X), \
-                                         -(__v4sf)(__m128)(Y), (__mmask8)(U), \
+                                         (__v4sf)(__m128)(Y), (__mmask8)(U), \
                                          (int)(R)); })
 
 static __inline__ __m128d __DEFAULT_FN_ATTRS
@@ -8610,17 +8610,17 @@
 static __inline__ __m128d __DEFAULT_FN_ATTRS
 _mm_mask3_fmsub_sd (__m128d __W, __m128d __X, __m128d __Y, __mmask8 __U)
 {
- return (__m128d) __builtin_ia32_vfmaddsd3_mask3 ((__v2df) __W,
+ return (__m128d) __builtin_ia32_vfmsubsd3_mask3 ((__v2df) __W,
           (__v2df) __X,
-          -(__v2df) __Y,
+          (__v2df) __Y,
           (__mmask8) __U,
           _MM_FROUND_CUR_DIRECTION);
 }
 
 #define _mm_mask3_fmsub_round_sd(W, X, Y, U, R) __extension__ ({\
-  (__m128d)__builtin_ia32_vfmaddsd3_mask3((__v2df)(__m128d)(W), \
+  (__m128d)__builtin_ia32_vfmsubsd3_mask3((__v2df)(__m128d)(W), \
                                           (__v2df)(__m128d)(X), \
-                                          -(__v2df)(__m128d)(Y), \
+                                          (__v2df)(__m128d)(Y), \
                                           (__mmask8)(U), (int)(R)); })
 
 static __inline__ __m128d __DEFAULT_FN_ATTRS
@@ -8707,17 +8707,17 @@
 static __inline__ __m128d __DEFAULT_FN_ATTRS
 _mm_mask3_fnmsub_sd (__m128d __W, __m128d __X, __m128d __Y, __mmask8 __U)
 {
- return (__m128d) __builtin_ia32_vfmaddsd3_mask3 (-(__v2df) (__W),
+ return (__m128d) __builtin_ia32_vfnmsubsd3_mask3 ((__v2df) (__W),
           (__v2df) __X,
-          -(__v2df) (__Y),
+          (__v2df) (__Y),
           (__mmask8) __U,
           _MM_FROUND_CUR_DIRECTION);
 }
 
 #define _mm_mask3_fnmsub_round_sd(W, X, Y, U, R) __extension__({\
-  (__m128d)__builtin_ia32_vfmaddsd3_mask3(-(__v2df)(__m128d)(W), \
+  (__m128d)__builtin_ia32_vfnmsubsd3_mask3((__v2df)(__m128d)(W), \
                                           (__v2df)(__m128d)(X), \
-                                          -(__v2df)(__m128d)(Y), \
+                                          (__v2df)(__m128d)(Y), \
                                           (__mmask8)(U), (int)(R)); })
 
 #define _mm512_permutex_pd(X, C) __extension__ ({ \
Index: include/clang/Basic/BuiltinsX86.def
===================================================================
--- include/clang/Basic/BuiltinsX86.def
+++ include/clang/Basic/BuiltinsX86.def
@@ -1832,6 +1832,10 @@
 TARGET_BUILTIN(__builtin_ia32_vfmaddsd3_mask,  "V2dV2dV2dV2dUcIi", "", "avx512f")
 TARGET_BUILTIN(__builtin_ia32_vfmaddsd3_maskz, "V2dV2dV2dV2dUcIi", "", "avx512f")
 TARGET_BUILTIN(__builtin_ia32_vfmaddsd3_mask3, "V2dV2dV2dV2dUcIi", "", "avx512f")
+TARGET_BUILTIN(__builtin_ia32_vfmsubsd3_mask3, "V2dV2dV2dV2dUcIi", "", "avx512f")
+TARGET_BUILTIN(__builtin_ia32_vfmsubss3_mask3, "V4fV4fV4fV4fUcIi", "", "avx512f")
+TARGET_BUILTIN(__builtin_ia32_vfnmsubsd3_mask3, "V2dV2dV2dV2dUcIi", "", "avx512f")
+TARGET_BUILTIN(__builtin_ia32_vfnmsubss3_mask3, "V4fV4fV4fV4fUcIi", "", "avx512f")
 TARGET_BUILTIN(__builtin_ia32_permvarhi512_mask, "V32sV32sV32sV32sUi","","avx512bw")
 TARGET_BUILTIN(__builtin_ia32_permvardf512_mask, "V8dV8dV8LLiV8dUc","","avx512f")
 TARGET_BUILTIN(__builtin_ia32_permvardi512_mask, "V8LLiV8LLiV8LLiV8LLiUc","","avx512f")
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