X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Ftv%2Ftv.c;h=9e38147b9cbe802c810aea7f938dfdaeb24dc2ef;hb=1553e92153d3b718a7f5575dcbbe8abbffc579c0;hp=0394b2b80e058a451fddb70aa89a8f04a5fc571a;hpb=1a3b7d363474ab544c13093a2f0b578718d37c7a;p=libfirm

diff --git a/ir/tv/tv.c b/ir/tv/tv.c
index 0394b2b80..9e38147b9 100644
--- a/ir/tv/tv.c
+++ b/ir/tv/tv.c
@@ -36,10 +36,8 @@
 #include <assert.h>
 #include <stdlib.h>
 #include <string.h>
-#ifdef HAVE_STRINGS_H
-#include <strings.h>
-#endif
 #include <stdlib.h>
+#include <strings.h>
 
 #include "bitfiddle.h"
 #include "tv_t.h"
@@ -66,7 +64,9 @@ typedef enum float_to_int_mode {
 
 static float_to_int_mode current_float_to_int_mode = TRUNCATE;
 
+/* set this to true if infinity should be clipped to +/- MAX_FLOAT */
 #define SWITCH_NOINFINITY 0
+/* set this to true if denormals should be clipped to zero */
 #define SWITCH_NODENORMALS 0
 
 /****************************************************************************
@@ -126,11 +126,12 @@ static void _fail_verify(ir_tarval *tv, const char* file, int line)
 	else
 		panic("%s:%d: Invalid tarval (null)", file, line);
 }
+
+inline static
 #ifdef __GNUC__
-inline static void tarval_verify(ir_tarval *tv) __attribute__ ((unused));
+	__attribute__((unused))
 #endif
-
-inline static void tarval_verify(ir_tarval *tv)
+void tarval_verify(ir_tarval *tv)
 {
 	assert(tv);
 	assert(tv->mode);
@@ -254,7 +255,7 @@ static ir_tarval *get_tarval_overflow(const void *value, size_t length, ir_mode
 			case TV_OVERFLOW_SATURATE:
 				return get_mode_min(mode);
 			case TV_OVERFLOW_WRAP: {
-				char *temp = (char*) alloca(sc_get_buffer_length());
+				temp = (char*) alloca(sc_get_buffer_length());
 				memcpy(temp, value, sc_get_buffer_length());
 				sc_truncate(get_mode_size_bits(mode), temp);
 				return get_tarval(temp, length, mode);
@@ -268,14 +269,13 @@ static ir_tarval *get_tarval_overflow(const void *value, size_t length, ir_mode
 		break;
 
 	case irms_float_number:
-#ifdef SWITCH_NOINFINITY
+#if SWITCH_NOINFINITY
 		if (fc_is_inf((const fp_value*) value)) {
 			/* clip infinity to maximum value */
 			return fc_is_negative((const fp_value*) value) ? get_mode_min(mode) : get_mode_max(mode);
 		}
 #endif
-
-#ifdef SWITCH_NODENORMALS
+#if SWITCH_NODENORMALS
 		if (fc_is_subnormal((const fp_value*) value)) {
 			/* clip denormals to zero */
 			return get_mode_null(mode);
@@ -317,6 +317,7 @@ static const ieee_descriptor_t *get_descriptor(const ir_mode *mode)
 										real payload */
 	/* case 128: return &quad_desc; */
 	default:
+		(void) quad_desc;
 		panic("Unsupported mode in get_descriptor()");
 	}
 }
@@ -964,10 +965,10 @@ ir_tarval *tarval_convert_to(ir_tarval *src, ir_mode *dst_mode)
 			return get_tarval(buffer, sc_get_buffer_length(), dst_mode);
 
 		default:
-			/* the rest can't be converted */
-			return tarval_bad;
+			break;
 		}
-		break;
+		/* the rest can't be converted */
+		return tarval_bad;
 
 	/* cast int/characters to something */
 	case irms_int_number:
@@ -977,7 +978,6 @@ ir_tarval *tarval_convert_to(ir_tarval *src, ir_mode *dst_mode)
 		case irms_int_number:
 			buffer = (char*) alloca(sc_get_buffer_length());
 			memcpy(buffer, src->value, sc_get_buffer_length());
-			sign_extend(buffer, dst_mode);
 			return get_tarval_overflow(buffer, src->length, dst_mode);
 
 		case irms_internal_boolean:
@@ -1600,7 +1600,6 @@ int tarval_snprintf(char *buf, size_t len, ir_tarval *tv)
 		default:
 			return snprintf(buf, len, "%s%s%s", prefix, fc_print((const fp_value*) tv->value, tv_buf, sizeof(tv_buf), FC_DEC), suffix);
 		}
-		break;
 
 	case irms_internal_boolean:
 		switch (mode_info->mode_output) {