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-rw-r--r--gcc/ada/gcc-interface/Makefile.in17
1 files changed, 13 insertions, 4 deletions
diff --git a/gcc/ada/gcc-interface/Makefile.in b/gcc/ada/gcc-interface/Makefile.in
index e22b4d20..2c0a380 100644
--- a/gcc/ada/gcc-interface/Makefile.in
+++ b/gcc/ada/gcc-interface/Makefile.in
@@ -107,6 +107,7 @@ ADA_CFLAGS =
ADAFLAGS = -W -Wall -gnatpg -gnata
FORCE_DEBUG_ADAFLAGS = -g
NO_INLINE_ADAFLAGS = -fno-inline
+NO_OMIT_ADAFLAGS = -fno-omit-frame-pointer
NO_SIBLING_ADAFLAGS = -fno-optimize-sibling-calls
NO_REORDER_ADAFLAGS = -fno-toplevel-reorder
GNATLIBFLAGS = -W -Wall -gnatpg -nostdinc
@@ -3016,8 +3017,8 @@ s-tasdeb.o : s-tasdeb.adb s-tasdeb.ads
# use -O1 otherwise gdb isn't able to get a full backtrace on mips targets.
a-except.o : a-except.adb a-except.ads
- $(CC) -c $(ALL_ADAFLAGS) $(FORCE_DEBUG_ADAFLAGS) -O1 -fno-inline \
- $(NO_REORDER_ADAFLAGS) $(ADA_INCLUDES) $< $(OUTPUT_OPTION)
+ $(CC) -c $(ALL_ADAFLAGS) $(FORCE_DEBUG_ADAFLAGS) $(NO_INLINE_ADAFLAGS) \
+ $(NO_REORDER_ADAFLAGS) -O1 $(ADA_INCLUDES) $< $(OUTPUT_OPTION)
# compile s-excdeb.o without optimization and with debug info to let the
# debugger set breakpoints and inspect subprogram parameters on exception
@@ -3041,11 +3042,19 @@ a-tags.o : a-tags.adb a-tags.ads
$(CC) -c $(ALL_ADAFLAGS) $(FORCE_DEBUG_ADAFLAGS) $(ADA_INCLUDES) \
$< $(OUTPUT_OPTION)
-# need to keep the frame pointer in this file to pop the stack properly on
+# force no sibling call optimization on s-memory.o to avoid turning the
+# tail recursion in Alloc into a loop that confuses branch prediction.
+
+s-memory.o : s-memory.adb s-memory.ads
+ $(CC) -c $(ALL_ADAFLAGS) $(NO_SIBLING_ADAFLAGS) $(ADA_INCLUDES) \
+ $< $(OUTPUT_OPTION)
+
+# need to keep the frame pointer in tracebak.o to pop the stack properly on
# some targets.
+
tracebak.o : tracebak.c tb-gcc.c
$(COMPILER) -c $(ALL_COMPILERFLAGS) $(ADA_CFLAGS) $(ALL_CPPFLAGS) \
- $(INCLUDES) -fno-omit-frame-pointer $< $(OUTPUT_OPTION)
+ $(INCLUDES) $(NO_OMIT_ADAFLAGS) $< $(OUTPUT_OPTION)
adadecode.o : adadecode.c adadecode.h
aux-io.o : aux-io.c