Add a WASM SIMD128 2x2 complex GEMM microkernel

Vectorize the packed 2x2 CGEMM/ZGEMM inner loop with f32x4/f64x2
complex mul. Do not let kernel/wasm/KERNEL override the target
kernel the way 4x4 real GEMM already guards TRMM.

Signed-off-by: Julien Jerphanion <git@jjerphan.xyz>

Author: jjerphan

kernel/wasm/KERNEL

@@ -142,17 +142,37 @@ ifndef DGEMMOTCOPYOBJ
 DGEMMOTCOPYOBJ = dgemm_otcopy$(TSUFFIX).$(SUFFIX)
 endif
 
+ifndef CGEMMKERNEL
 CGEMMKERNEL    = ../generic/zgemmkernel_2x2.c
+endif
+ifndef CGEMMONCOPY
 CGEMMONCOPY    = ../generic/zgemm_ncopy_2.c
+endif
+ifndef CGEMMOTCOPY
 CGEMMOTCOPY    = ../generic/zgemm_tcopy_2.c
+endif
+ifndef CGEMMONCOPYOBJ
 CGEMMONCOPYOBJ =  cgemm_oncopy$(TSUFFIX).$(SUFFIX)
+endif
+ifndef CGEMMOTCOPYOBJ
 CGEMMOTCOPYOBJ =  cgemm_otcopy$(TSUFFIX).$(SUFFIX)
+endif
 
+ifndef ZGEMMKERNEL
 ZGEMMKERNEL    = ../generic/zgemmkernel_2x2.c
+endif
+ifndef ZGEMMONCOPY
 ZGEMMONCOPY    = ../generic/zgemm_ncopy_2.c
+endif
+ifndef ZGEMMOTCOPY
 ZGEMMOTCOPY    = ../generic/zgemm_tcopy_2.c
+endif
+ifndef ZGEMMONCOPYOBJ
 ZGEMMONCOPYOBJ =  zgemm_oncopy$(TSUFFIX).$(SUFFIX)
+endif
+ifndef ZGEMMOTCOPYOBJ
 ZGEMMOTCOPYOBJ =  zgemm_otcopy$(TSUFFIX).$(SUFFIX)
+endif
 
 ifndef STRSMKERNEL_LN
 STRSMKERNEL_LN	=  ../generic/trsm_kernel_LN.c

kernel/wasm/KERNEL.WASM128_GENERIC

@@ -112,13 +112,13 @@ DGEMMOTCOPY    = ../generic/gemm_tcopy_4.c
 DGEMMONCOPYOBJ = dgemm_oncopy$(TSUFFIX).$(SUFFIX)
 DGEMMOTCOPYOBJ = dgemm_otcopy$(TSUFFIX).$(SUFFIX)
 
-CGEMMKERNEL    = ../generic/zgemmkernel_2x2.c
+CGEMMKERNEL    = zgemmkernel_2x2_wasm128.c
 CGEMMONCOPY    = ../generic/zgemm_ncopy_2.c
 CGEMMOTCOPY    = ../generic/zgemm_tcopy_2.c
 CGEMMONCOPYOBJ =  cgemm_oncopy$(TSUFFIX).$(SUFFIX)
 CGEMMOTCOPYOBJ =  cgemm_otcopy$(TSUFFIX).$(SUFFIX)
 
-ZGEMMKERNEL    = ../generic/zgemmkernel_2x2.c
+ZGEMMKERNEL    = zgemmkernel_2x2_wasm128.c
 ZGEMMONCOPY    = ../generic/zgemm_ncopy_2.c
 ZGEMMOTCOPY    = ../generic/zgemm_tcopy_2.c
 ZGEMMONCOPYOBJ =  zgemm_oncopy$(TSUFFIX).$(SUFFIX)