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-rw-r--r--ChangeLog5
-rw-r--r--soft-fp/op-4.h63
2 files changed, 40 insertions, 28 deletions
diff --git a/ChangeLog b/ChangeLog
index 83a28dbb2f..3bbd5628c3 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2018-11-01 Zong Li <zong@andestech.com>
+
+ * soft-fp/op-4.h (_FP_FRAC_SUB_3, _FP_FRAC_SUB_4): Use temporary
+ variable to avoid overlap arguments.
+
2018-11-01 Joseph Myers <joseph@codesourcery.com>
* posix/bug-regex22.c (main): Use puts with distinct error
diff --git a/soft-fp/op-4.h b/soft-fp/op-4.h
index 01b87d01a1..b429801687 100644
--- a/soft-fp/op-4.h
+++ b/soft-fp/op-4.h
@@ -696,39 +696,46 @@
#endif
#ifndef __FP_FRAC_SUB_3
-# define __FP_FRAC_SUB_3(r2, r1, r0, x2, x1, x0, y2, y1, y0) \
- do \
- { \
- _FP_W_TYPE __FP_FRAC_SUB_3_c1, __FP_FRAC_SUB_3_c2; \
- r0 = x0 - y0; \
- __FP_FRAC_SUB_3_c1 = r0 > x0; \
- r1 = x1 - y1; \
- __FP_FRAC_SUB_3_c2 = r1 > x1; \
- r1 -= __FP_FRAC_SUB_3_c1; \
- __FP_FRAC_SUB_3_c2 |= __FP_FRAC_SUB_3_c1 && (y1 == x1); \
- r2 = x2 - y2 - __FP_FRAC_SUB_3_c2; \
- } \
+# define __FP_FRAC_SUB_3(r2, r1, r0, x2, x1, x0, y2, y1, y0) \
+ do \
+ { \
+ _FP_W_TYPE __FP_FRAC_SUB_3_tmp[2]; \
+ _FP_W_TYPE __FP_FRAC_SUB_3_c1, __FP_FRAC_SUB_3_c2; \
+ __FP_FRAC_SUB_3_tmp[0] = x0 - y0; \
+ __FP_FRAC_SUB_3_c1 = __FP_FRAC_SUB_3_tmp[0] > x0; \
+ __FP_FRAC_SUB_3_tmp[1] = x1 - y1; \
+ __FP_FRAC_SUB_3_c2 = __FP_FRAC_SUB_3_tmp[1] > x1; \
+ __FP_FRAC_SUB_3_tmp[1] -= __FP_FRAC_SUB_3_c1; \
+ __FP_FRAC_SUB_3_c2 |= __FP_FRAC_SUB_3_c1 && (y1 == x1); \
+ r2 = x2 - y2 - __FP_FRAC_SUB_3_c2; \
+ r1 = __FP_FRAC_SUB_3_tmp[1]; \
+ r0 = __FP_FRAC_SUB_3_tmp[0]; \
+ } \
while (0)
#endif
#ifndef __FP_FRAC_SUB_4
# define __FP_FRAC_SUB_4(r3, r2, r1, r0, x3, x2, x1, x0, y3, y2, y1, y0) \
- do \
- { \
- _FP_W_TYPE __FP_FRAC_SUB_4_c1, __FP_FRAC_SUB_4_c2; \
- _FP_W_TYPE __FP_FRAC_SUB_4_c3; \
- r0 = x0 - y0; \
- __FP_FRAC_SUB_4_c1 = r0 > x0; \
- r1 = x1 - y1; \
- __FP_FRAC_SUB_4_c2 = r1 > x1; \
- r1 -= __FP_FRAC_SUB_4_c1; \
- __FP_FRAC_SUB_4_c2 |= __FP_FRAC_SUB_4_c1 && (y1 == x1); \
- r2 = x2 - y2; \
- __FP_FRAC_SUB_4_c3 = r2 > x2; \
- r2 -= __FP_FRAC_SUB_4_c2; \
- __FP_FRAC_SUB_4_c3 |= __FP_FRAC_SUB_4_c2 && (y2 == x2); \
- r3 = x3 - y3 - __FP_FRAC_SUB_4_c3; \
- } \
+ do \
+ { \
+ _FP_W_TYPE __FP_FRAC_SUB_4_tmp[3]; \
+ _FP_W_TYPE __FP_FRAC_SUB_4_c1, __FP_FRAC_SUB_4_c2; \
+ _FP_W_TYPE __FP_FRAC_SUB_4_c3; \
+ __FP_FRAC_SUB_4_tmp[0] = x0 - y0; \
+ __FP_FRAC_SUB_4_c1 = __FP_FRAC_SUB_4_tmp[0] > x0; \
+ __FP_FRAC_SUB_4_tmp[1] = x1 - y1; \
+ __FP_FRAC_SUB_4_c2 = __FP_FRAC_SUB_4_tmp[1] > x1; \
+ __FP_FRAC_SUB_4_tmp[1] -= __FP_FRAC_SUB_4_c1; \
+ __FP_FRAC_SUB_4_c2 |= __FP_FRAC_SUB_4_c1 && (y1 == x1); \
+ __FP_FRAC_SUB_4_tmp[2] = x2 - y2; \
+ __FP_FRAC_SUB_4_c3 = __FP_FRAC_SUB_4_tmp[2] > x2; \
+ __FP_FRAC_SUB_4_tmp[2] -= __FP_FRAC_SUB_4_c2; \
+ __FP_FRAC_SUB_4_c3 |= __FP_FRAC_SUB_4_c2 && (y2 == x2); \
+ r3 = x3 - y3 - __FP_FRAC_SUB_4_c3; \
+ r2 = __FP_FRAC_SUB_4_tmp[2]; \
+ r1 = __FP_FRAC_SUB_4_tmp[1]; \
+ r0 = __FP_FRAC_SUB_4_tmp[0]; \
+ } \
while (0)
#endif