Merge pull request #3329 from martin-frbg/issue3272

Work around gcc11+ miscompiling C/ZBLAS3 tests at -O3

ctest/CMakeLists.txt

@@ -4,6 +4,9 @@ include_directories(${PROJECT_BINARY_DIR})
 enable_language(Fortran)
 
 set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DADD${BU} -DCBLAS")
+if (CMAKE_Fortran_COMPILER_ID STREQUAL GNU)
+	set(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} -fno-tree-vectorize")
+endif()
 
 if(WIN32)
 FILE(WRITE ${CMAKE_CURRENT_BINARY_DIR}/test_cblas_helper.ps1

ctest/Makefile

@@ -6,6 +6,9 @@ TOPDIR = ..
 include $(TOPDIR)/Makefile.system
 
 override CFLAGS += -DADD$(BU) -DCBLAS
+ifeq ($(F_COMPILER),GFORTRAN)
+	override FFLAGS += -fno-tree-vectorize
+endif
 override TARGET_ARCH=
 override TARGET_MACH=
 

test/CMakeLists.txt

@@ -2,6 +2,10 @@ include_directories(${PROJECT_SOURCE_DIR})
 include_directories(${PROJECT_BINARY_DIR})
 
 enable_language(Fortran)
+if (CMAKE_Fortran_COMPILER_ID STREQUAL GNU)
+        set(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} -fno-tree-vectorize")
+endif()
+
 
 if (BUILD_SINGLE)
 	list( APPEND OpenBLAS_Tests sblat1 sblat2 sblat3)

test/Makefile

@@ -1,6 +1,8 @@
 TOPDIR	= ..
 include ../Makefile.system
-
+ifeq ($(F_COMPILER),GFORTRAN)
+        override FFLAGS += -fno-tree-vectorize
+endif
 
 ifeq ($(NOFORTRAN),1)
 all ::