diff options
Diffstat (limited to 'testing/gcc/gcc-pr49720.patch')
| -rw-r--r-- | testing/gcc/gcc-pr49720.patch | 26 |
1 files changed, 0 insertions, 26 deletions
diff --git a/testing/gcc/gcc-pr49720.patch b/testing/gcc/gcc-pr49720.patch deleted file mode 100644 index 8f50c4120..000000000 --- a/testing/gcc/gcc-pr49720.patch +++ /dev/null @@ -1,26 +0,0 @@ ---- trunk/gcc/simplify-rtx.c 2011/10/28 05:55:10 180603 -+++ trunk/gcc/simplify-rtx.c 2011/10/28 06:35:31 180604 -@@ -4352,10 +4352,20 @@ - { - rtx x = XEXP (op0, 0); - rtx c = XEXP (op0, 1); -+ enum rtx_code invcode = op0code == PLUS ? MINUS : PLUS; -+ rtx tem = simplify_gen_binary (invcode, cmp_mode, op1, c); - -- c = simplify_gen_binary (op0code == PLUS ? MINUS : PLUS, -- cmp_mode, op1, c); -- return simplify_gen_relational (code, mode, cmp_mode, x, c); -+ /* Detect an infinite recursive condition, where we oscillate at this -+ simplification case between: -+ A + B == C <---> C - B == A, -+ where A, B, and C are all constants with non-simplifiable expressions, -+ usually SYMBOL_REFs. */ -+ if (GET_CODE (tem) == invcode -+ && CONSTANT_P (x) -+ && rtx_equal_p (c, XEXP (tem, 1))) -+ return NULL_RTX; -+ -+ return simplify_gen_relational (code, mode, cmp_mode, x, tem); - } - - /* (ne:SI (zero_extract:SI FOO (const_int 1) BAR) (const_int 0))) is |