diff --git a/Discovery_ecu/Appl/Makefile b/Discovery_ecu/Appl/Makefile
index ada8fa4..cd4f2e0 100644
--- a/Discovery_ecu/Appl/Makefile
+++ b/Discovery_ecu/Appl/Makefile
@@ -409,7 +409,7 @@ endif
 
 #Please add any other option below (vector default options)
 CFLAGS_VECTOR_OPTIONS = -mcpu=$(MCPU_SWITCH_$(DERIVATIVE)) \
-                        -O                                 \
+                        -O0                                \
                         -g                                 \
                         -save-temps                        \
                         -fno-common                        \
diff --git a/ThirdParty/Mcal_Tc2xx/Supply/MC-ISAR_AS4XX_AURIX_TC27X_DC_PB_BASE_V500_REL322/TC27x_DCstep/Aurix_MC-ISAR/tricore_general/ssc/inc/Mcal_Compiler.h b/ThirdParty/Mcal_Tc2xx/Supply/MC-ISAR_AS4XX_AURIX_TC27X_DC_PB_BASE_V500_REL322/TC27x_DCstep/Aurix_MC-ISAR/tricore_general/ssc/inc/Mcal_Compiler.h
index 3e4ed50..52bc06f 100644
--- a/ThirdParty/Mcal_Tc2xx/Supply/MC-ISAR_AS4XX_AURIX_TC27X_DC_PB_BASE_V500_REL322/TC27x_DCstep/Aurix_MC-ISAR/tricore_general/ssc/inc/Mcal_Compiler.h
+++ b/ThirdParty/Mcal_Tc2xx/Supply/MC-ISAR_AS4XX_AURIX_TC27X_DC_PB_BASE_V500_REL322/TC27x_DCstep/Aurix_MC-ISAR/tricore_general/ssc/inc/Mcal_Compiler.h
@@ -199,7 +199,7 @@ standard by the upper layers AI00251033 */
 #ifndef IFX_INLINE
 /*IFX_MISRA_RULE_19_04_STATUS=IFX_INLINE cannot be expand to a braced
  initialiser*/
-#define IFX_INLINE       __inline__
+#define IFX_INLINE       __inline__ __attribute__ ((__always_inline__))
 #endif
 /* Start of integration check:This change is made to make Integration between
  "Mcal and SafeTlib"  work fine */