Add conservative fmisc safe mode

AMSS_NCKU_source/makefile

@@ -55,6 +55,7 @@ EM_KERNEL_FLAG = -DBSSN_USE_EM_C_KERNEL=$(EFFECTIVE_USE_CXX_EM_KERNEL)
 ##   0          : fallback to Neville path
 POLINT6_USE_BARY ?= 1
 POLINT6_FLAG = -DPOLINT6_USE_BARYCENTRIC=$(POLINT6_USE_BARY)
+FMISC_SAFE_FLAG = -DUSE_FMISC_SAFE_MODE=$(USE_FMISC_SAFE_MODE)
 TRANSFER_CACHE_FLAG = -DBSSN_USE_TRANSFER_CACHE=$(EFFECTIVE_USE_TRANSFER_CACHE)
 ESCALAR_KERNEL_FLAG = -DBSSN_USE_ESCALAR_C_KERNEL=$(EFFECTIVE_USE_CXX_ESCALAR_KERNEL)
 
@@ -67,9 +68,11 @@ ifeq ($(PGO_MODE),instrument)
 ## Phase 1: instrumentation — omit -ipo/-fp-model fast=2 for faster build and numerical stability
 CXXAPPFLAGS = -O3 -march=x86-64-v4 -fma -fprofile-instr-generate -ipo \
               -Dfortran3 -Dnewc -I${MKLROOT}/include $(INTERP_LB_FLAGS) \
+              $(FMISC_SAFE_FLAG) \
               $(TRANSFER_CACHE_FLAG) $(ESCALAR_KERNEL_FLAG) $(EM_KERNEL_FLAG)
 f90appflags = -O3 -march=x86-64-v4 -fma -fprofile-instr-generate -ipo \
-              -align array64byte -fpp -I${MKLROOT}/include $(POLINT6_FLAG)
+              -align array64byte -fpp -I${MKLROOT}/include $(POLINT6_FLAG) \
+              $(FMISC_SAFE_FLAG)
 else
 ## opt (default): maximum performance with PGO profile data -fprofile-instr-use=$(PROFDATA) \
 ## PGO has been turned off, now tested and found to be negative optimization
@@ -78,9 +81,11 @@ else
 
 CXXAPPFLAGS = -O3 -march=x86-64-v4 -fp-model fast=2 -fma -ipo \
               -Dfortran3 -Dnewc -I${MKLROOT}/include $(INTERP_LB_FLAGS) \
+              $(FMISC_SAFE_FLAG) \
               $(TRANSFER_CACHE_FLAG) $(ESCALAR_KERNEL_FLAG) $(EM_KERNEL_FLAG)
 f90appflags = -O3 -march=x86-64-v4 -fp-model fast=2 -fma -ipo \
-              -align array64byte -fpp -I${MKLROOT}/include $(POLINT6_FLAG)
+              -align array64byte -fpp -I${MKLROOT}/include $(POLINT6_FLAG) \
+              $(FMISC_SAFE_FLAG)
 endif
 
 .SUFFIXES: .o .f90 .C .for .cu