[X86] Add test coverage for #111611

llvm · Oct 15, 2024 · e100e4a · e100e4a
1 parent 94eb975
commit e100e4a
Showing 1 changed file with 49 additions and 0 deletions.
diff --git a/llvm/test/CodeGen/X86/shuffle-vs-trunc-512.ll b/llvm/test/CodeGen/X86/shuffle-vs-trunc-512.ll
@@ -358,6 +358,55 @@ define <16 x i8> @trunc_shuffle_v64i8_01_05_09_13_17_21_25_29_33_37_41_45_49_53_
   ret <16 x i8> %res
 }
 
+; PR111611
+define <32 x i8> @trunc_shuffle_v32i16_v32i8_ofs1(<32 x i16> %a0) {
+; AVX512F-LABEL: trunc_shuffle_v32i16_v32i8_ofs1:
+; AVX512F:       # %bb.0:
+; AVX512F-NEXT:    vextracti64x4 $1, %zmm0, %ymm1
+; AVX512F-NEXT:    vpbroadcastq {{.*#+}} ymm2 = [1,3,5,7,9,11,13,15,1,3,5,7,9,11,13,15,1,3,5,7,9,11,13,15,1,3,5,7,9,11,13,15]
+; AVX512F-NEXT:    vpshufb %ymm2, %ymm1, %ymm1
+; AVX512F-NEXT:    vpshufb %ymm2, %ymm0, %ymm0
+; AVX512F-NEXT:    vpblendd {{.*#+}} ymm0 = ymm0[0,1],ymm1[2,3],ymm0[4,5],ymm1[6,7]
+; AVX512F-NEXT:    vpermq {{.*#+}} ymm0 = ymm0[0,2,1,3]
+; AVX512F-NEXT:    retq
+;
+; AVX512VL-FAST-ALL-LABEL: trunc_shuffle_v32i16_v32i8_ofs1:
+; AVX512VL-FAST-ALL:       # %bb.0:
+; AVX512VL-FAST-ALL-NEXT:    vextracti64x4 $1, %zmm0, %ymm1
+; AVX512VL-FAST-ALL-NEXT:    vpshufb {{.*#+}} ymm1 = ymm1[u,u,u,u,u,u,u,u,1,3,5,7,9,11,13,15,u,u,u,u,u,u,u,u,17,19,21,23,25,27,29,31]
+; AVX512VL-FAST-ALL-NEXT:    vpshufb {{.*#+}} ymm2 = ymm0[1,3,5,7,9,11,13,15,u,u,u,u,u,u,u,u,17,19,21,23,25,27,29,31,u,u,u,u,u,u,u,u]
+; AVX512VL-FAST-ALL-NEXT:    vpmovsxbq {{.*#+}} ymm0 = [0,2,5,7]
+; AVX512VL-FAST-ALL-NEXT:    vpermi2q %ymm1, %ymm2, %ymm0
+; AVX512VL-FAST-ALL-NEXT:    retq
+;
+; AVX512VL-FAST-PERLANE-LABEL: trunc_shuffle_v32i16_v32i8_ofs1:
+; AVX512VL-FAST-PERLANE:       # %bb.0:
+; AVX512VL-FAST-PERLANE-NEXT:    vextracti64x4 $1, %zmm0, %ymm1
+; AVX512VL-FAST-PERLANE-NEXT:    vpbroadcastq {{.*#+}} ymm2 = [1,3,5,7,9,11,13,15,1,3,5,7,9,11,13,15,1,3,5,7,9,11,13,15,1,3,5,7,9,11,13,15]
+; AVX512VL-FAST-PERLANE-NEXT:    vpshufb %ymm2, %ymm1, %ymm1
+; AVX512VL-FAST-PERLANE-NEXT:    vpshufb %ymm2, %ymm0, %ymm0
+; AVX512VL-FAST-PERLANE-NEXT:    vpblendd {{.*#+}} ymm0 = ymm0[0,1],ymm1[2,3],ymm0[4,5],ymm1[6,7]
+; AVX512VL-FAST-PERLANE-NEXT:    vpermq {{.*#+}} ymm0 = ymm0[0,2,1,3]
+; AVX512VL-FAST-PERLANE-NEXT:    retq
+;
+; AVX512VBMI-LABEL: trunc_shuffle_v32i16_v32i8_ofs1:
+; AVX512VBMI:       # %bb.0:
+; AVX512VBMI-NEXT:    vmovdqa {{.*#+}} ymm1 = [1,3,5,7,9,11,13,15,97,99,101,103,105,107,109,111,17,19,21,23,25,27,29,31,113,115,117,119,121,123,125,127]
+; AVX512VBMI-NEXT:    vpermi2b %zmm0, %zmm0, %zmm1
+; AVX512VBMI-NEXT:    vpermq {{.*#+}} ymm0 = ymm1[0,2,1,3]
+; AVX512VBMI-NEXT:    retq
+;
+; AVX512VBMIVL-LABEL: trunc_shuffle_v32i16_v32i8_ofs1:
+; AVX512VBMIVL:       # %bb.0:
+; AVX512VBMIVL-NEXT:    vmovdqa {{.*#+}} ymm1 = [1,3,5,7,9,11,13,15,17,19,21,23,25,27,29,31,33,35,37,39,41,43,45,47,49,51,53,55,57,59,61,63]
+; AVX512VBMIVL-NEXT:    vpermb %zmm0, %zmm1, %zmm0
+; AVX512VBMIVL-NEXT:    # kill: def $ymm0 killed $ymm0 killed $zmm0
+; AVX512VBMIVL-NEXT:    retq
+  %bc = bitcast <32 x i16> %a0 to <64 x i8>
+  %res = shufflevector <64 x i8> %bc, <64 x i8> poison, <32 x i32> <i32 1, i32 3, i32 5, i32 7, i32 9, i32 11, i32 13, i32 15, i32 17, i32 19, i32 21, i32 23, i32 25, i32 27, i32 29, i32 31, i32 33, i32 35, i32 37, i32 39, i32 41, i32 43, i32 45, i32 47, i32 49, i32 51, i32 53, i32 55, i32 57, i32 59, i32 61, i32 63>
+  ret <32 x i8> %res
+}
+
 define <4 x double> @PR34175(ptr %p) {
 ; AVX512F-LABEL: PR34175:
 ; AVX512F:       # %bb.0: