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authoruros <uros@138bc75d-0d04-0410-961f-82ee72b054a4>2007-10-17 15:22:23 +0000
committeruros <uros@138bc75d-0d04-0410-961f-82ee72b054a4>2007-10-17 15:22:23 +0000
commitc4ed224678904eac4b2bd4f79464565a8d6eb757 (patch)
tree99c5650f062fac9747d1952e2322e092dcc513b5 /gcc
parentd35ae1e64492832af9cd56cb5d5572c9f5515a6c (diff)
downloadgcc-c4ed224678904eac4b2bd4f79464565a8d6eb757.tar.gz
PR middle-end/33794
* reg-stack.c (move_for_stack_reg): Swap input argument of UNSPEC_TAN insn to the top of the stack. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@129406 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc')
-rw-r--r--gcc/ChangeLog6
-rw-r--r--gcc/reg-stack.c12
2 files changed, 13 insertions, 5 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index a37131f8f1f..34462e4a89f 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,11 @@
2007-10-17 Uros Bizjak <ubizjak@gmail.com>
+ PR middle-end/33794
+ * reg-stack.c (move_for_stack_reg): Swap input argument of
+ UNSPEC_TAN insn to the top of the stack.
+
+2007-10-17 Uros Bizjak <ubizjak@gmail.com>
+
PR target/32961
* config/i386/i386.c (ix86_expand_builtin) [IX86_BUILTIN_PSLLWI128,
IX86_BUILTIN_PSLLDI128, BUILTIN_PSLLQI128, IX86_BUILTIN_PSRAWI128,
diff --git a/gcc/reg-stack.c b/gcc/reg-stack.c
index f5d263fbff2..248a8c2b9a5 100644
--- a/gcc/reg-stack.c
+++ b/gcc/reg-stack.c
@@ -1085,11 +1085,13 @@ move_for_stack_reg (rtx insn, stack regstack, rtx pat)
special case with i387 UNSPEC_TAN, where destination is live
(an argument to fptan) but inherent load of 1.0 is modelled
as a load from a constant. */
- if (! (GET_CODE (pat) == PARALLEL
- && XVECLEN (pat, 0) == 2
- && GET_CODE (XVECEXP (pat, 0, 1)) == SET
- && GET_CODE (SET_SRC (XVECEXP (pat, 0, 1))) == UNSPEC
- && XINT (SET_SRC (XVECEXP (pat, 0, 1)), 1) == UNSPEC_TAN))
+ if (GET_CODE (pat) == PARALLEL
+ && XVECLEN (pat, 0) == 2
+ && GET_CODE (XVECEXP (pat, 0, 1)) == SET
+ && GET_CODE (SET_SRC (XVECEXP (pat, 0, 1))) == UNSPEC
+ && XINT (SET_SRC (XVECEXP (pat, 0, 1)), 1) == UNSPEC_TAN)
+ emit_swap_insn (insn, regstack, dest);
+ else
gcc_assert (get_hard_regnum (regstack, dest) < FIRST_STACK_REG);
gcc_assert (regstack->top < REG_STACK_SIZE);