Merge pull request #4661 from martin-frbg/issue4660

Fix CMAKE builds for Loongarch64

cmake/cc.cmake

@@ -2,6 +2,7 @@
 ## Author: Hank Anderson <hank@statease.com>
 ## Description: Ported from portion of OpenBLAS/Makefile.system
 ##              Sets C related variables.
+include(CheckCCompilerFlag)
 
 if (${CMAKE_C_COMPILER_ID} STREQUAL "GNU" OR ${CMAKE_C_COMPILER_ID} STREQUAL "LSB" OR ${CMAKE_C_COMPILER_ID} MATCHES "Clang")
 
@@ -36,14 +37,14 @@ if (${CMAKE_C_COMPILER_ID} STREQUAL "GNU" OR ${CMAKE_C_COMPILER_ID} STREQUAL "LS
 
     if (LOONGARCH64)
       if (BINARY64)
-	CHECK_CXX_COMPILER_FLAG("-mabi=lp64d" COMPILER_SUPPORT_LP64D_ABI)
+	CHECK_C_COMPILER_FLAG("-mabi=lp64d" COMPILER_SUPPORT_LP64D_ABI)
         if(COMPILER_SUPPORT_LP64D_ABI)
 	  set(CCOMMON_OPT "${CCOMMON_OPT} -mabi=lp64d")
 	else()
 	  set(CCOMMON_OPT "${CCOMMON_OPT} -mabi=lp64")
 	endif ()
       else ()
-	CHECK_CXX_COMPILER_FLAG("-mabi=ilp32d" COMPILER_SUPPORT_ILP32D_ABI)
+	CHECK_C_COMPILER_FLAG("-mabi=ilp32d" COMPILER_SUPPORT_ILP32D_ABI)
 	if(COMPILER_SUPPORT_ILP32D_ABI)
 	  set(CCOMMON_OPT "${CCOMMON_OPT} -mabi=ilp32d")
 	else()

cmake/fc.cmake

@@ -61,14 +61,14 @@ if (${F_COMPILER} STREQUAL "GFORTRAN" OR ${F_COMPILER} STREQUAL "F95" OR CMAKE_F
     endif ()
     if (LOONGARCH64)
       if (BINARY64)
-	CHECK_CXX_COMPILER_FLAG("-mabi=lp64d" COMPILER_SUPPORT_LP64D_ABI)
+	CHECK_C_COMPILER_FLAG("-mabi=lp64d" COMPILER_SUPPORT_LP64D_ABI)
         if(COMPILER_SUPPORT_LP64D_ABI)
 	  set(FCOMMON_OPT "${FCOMMON_OPT} -mabi=lp64d")
 	else()
 	  set(FCOMMON_OPT "${FCOMMON_OPT} -mabi=lp64")
 	endif ()
       else ()
-	CHECK_CXX_COMPILER_FLAG("-mabi=ilp32d" COMPILER_SUPPORT_ILP32D_ABI)
+	CHECK_C_COMPILER_FLAG("-mabi=ilp32d" COMPILER_SUPPORT_ILP32D_ABI)
 	if(COMPILER_SUPPORT_ILP32D_ABI)
 	  set(FCOMMON_OPT "${FCOMMON_OPT} -mabi=ilp32d")
 	else()

kernel/loongarch64/dot_lasx.S

@@ -165,7 +165,7 @@ PROLOGUE
     /* store dot in s1 $f8 */
 #ifdef DSDOT
     xvfadd.d  $xr8,   $xr8,    $xr9
-    fsub.s    s2,     s2,      s2,  /* set s2 to 0.0 */
+    fsub.s    s2,     s2,      s2  /* set s2 to 0.0 */
     xvpermi.q $xr0,   $xr8,    0x1
     vfadd.d   $vr8,   $vr8,    $vr0
     vpackod.d $vr0,   $vr8,    $vr8