X-Git-Url: http://wien.tomnetworks.com/gitweb/?a=blobdiff_plain;f=mono%2Fmini%2Flocal-propagation.c;h=7bdb517bd2bf5724a85a0a70c98d103ce7701b37;hb=204053720318b1d270e4e3529d742f8fcb7231f7;hp=3c76408f3e44ce31d0e4869c3e51aec8ba7549be;hpb=6c035e225abc36a15501a03f574744824225350b;p=mono.git

diff --git a/mono/mini/local-propagation.c b/mono/mini/local-propagation.c
index 3c76408f3e4..7bdb517bd2b 100644
--- a/mono/mini/local-propagation.c
+++ b/mono/mini/local-propagation.c
@@ -9,8 +9,11 @@
  *   Massimiliano Mantione (massi@ximian.com)
  *
  * (C) 2006 Novell, Inc.  http://www.novell.com
+ * Copyright 2011 Xamarin, Inc (http://www.xamarin.com)
  */
 
+#include <config.h>
+#ifndef DISABLE_JIT
 
 #include <string.h>
 #include <stdio.h>
@@ -130,9 +133,9 @@ restart:
 			num_sregs = mono_inst_get_src_registers (ins, sregs);
 			for (srcindex = 0; srcindex < num_sregs; ++srcindex) {
 				MonoInst *def;
-				int nsregs;
+				int nregs;
 
-				nsregs = mono_inst_get_src_registers (ins, sregs);
+				nregs = mono_inst_get_src_registers (ins, sregs);
 
 				regtype = spec [MONO_INST_SRC1 + srcindex];
 				sreg = sregs [srcindex];
@@ -429,6 +432,30 @@ reg_is_softreg (int reg, const char spec)
 		|| (spec == 'v');
 }
 
+static inline gboolean
+mono_is_simd_accessor (MonoInst *ins)
+{
+	switch (ins->opcode) {
+#ifdef MONO_ARCH_SIMD_INTRINSICS
+	case OP_INSERT_I1:
+	case OP_INSERT_I2:
+	case OP_INSERT_I4:
+	case OP_INSERT_I8:
+	case OP_INSERT_R4:
+	case OP_INSERT_R8:
+
+	case OP_INSERTX_U1_SLOW:
+	case OP_INSERTX_I4_SLOW:
+	case OP_INSERTX_R4_SLOW:
+	case OP_INSERTX_R8_SLOW:
+	case OP_INSERTX_I8_SLOW:
+		return TRUE;
+#endif
+	default:
+		return FALSE;
+	}
+}
+
 /**
  * mono_local_deadce:
  *
@@ -508,7 +535,7 @@ mono_local_deadce (MonoCompile *cfg)
 				 * This isn't copyprop, not deadce, but it can only be performed
 				 * after handle_global_vregs () has run.
 				 */
-				if (!get_vreg_to_inst (cfg, ins->sreg1) && (spec2 [MONO_INST_DEST] != ' ') && (def->dreg == ins->sreg1) && !mono_bitset_test_fast (used, ins->sreg1) && !MONO_IS_STORE_MEMBASE (def) && reg_is_softreg (ins->sreg1, spec [MONO_INST_DEST])) {
+				if (!get_vreg_to_inst (cfg, ins->sreg1) && (spec2 [MONO_INST_DEST] != ' ') && (def->dreg == ins->sreg1) && !mono_bitset_test_fast (used, ins->sreg1) && !MONO_IS_STORE_MEMBASE (def) && reg_is_softreg (ins->sreg1, spec [MONO_INST_DEST]) && !mono_is_simd_accessor (def)) {
 					if (cfg->verbose_level > 2) {
 						printf ("\tReverse copyprop in BB%d on ", bb->block_num);
 						mono_print_ins (ins);
@@ -586,3 +613,5 @@ mono_local_deadce (MonoCompile *cfg)
 
 	//mono_print_code (cfg, "AFTER LOCAL-DEADCE");
 }
+
+#endif /* DISABLE_JIT */