Merge remote-tracking branch 'raksys4/dyngen_modernization_experiment…

…' into dyngen_modernization_experiment
rakslice · Oct 30, 2020 · 0511ac7 · 0511ac7
2 parents 8a31d39 + 3d057c4
commit 0511ac7
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/SheepShaver/src/kpx_cpu/src/cpu/ppc/ppc-dyngen-ops.cpp b/SheepShaver/src/kpx_cpu/src/cpu/ppc/ppc-dyngen-ops.cpp
@@ -863,9 +863,12 @@ void OPPROTO op_mulhw_T0_T1(void)
 {
 #if DYNGEN_ASM_OPTS
 #if defined(__i386__) || defined(__x86_64__)
+#if __GNUC__ <= 6 || __GNUC__ >= 9
+	// Do not use for GCC 7 and 8; neglects move edx to output var
 	asm volatile ("imul %0" : "+d" (T0) : "a" (T1));
 	return;
 #endif
+#endif
 #endif
 	T0 = (((int64)(int32)T0) * ((int64)(int32)T1)) >> 32;
 }
@@ -874,9 +877,12 @@ void OPPROTO op_mulhwu_T0_T1(void)
 {
 #if DYNGEN_ASM_OPTS
 #if defined(__i386__) || defined(__x86_64__)
+#if __GNUC__ <= 6 || __GNUC__ >= 9
+	// Do not use for GCC 7 and 8; neglects move edx to output var
 	asm volatile ("mul %0" : "+d" (T0) : "a" (T1));
 	return;
 #endif
+#endif
 #endif
 	T0 = (((uint64)T0) * ((uint64)T1)) >> 32;
 }