From 795479950392d25da04300337b3c6c9eabd77941 Mon Sep 17 00:00:00 2001 From: Kazu Hirata Date: Sat, 28 May 2005 21:03:53 +0000 Subject: tree-ssa-ccp.c (ccp_fold): Remove code that produces non-gimple min minvariant. * tree-ssa-ccp.c (ccp_fold): Remove code that produces non-gimple min minvariant. From-SVN: r100301 --- gcc/tree-ssa-ccp.c | 32 -------------------------------- 1 file changed, 32 deletions(-) (limited to 'gcc/tree-ssa-ccp.c') diff --git a/gcc/tree-ssa-ccp.c b/gcc/tree-ssa-ccp.c index c1593f8..01b608b 100644 --- a/gcc/tree-ssa-ccp.c +++ b/gcc/tree-ssa-ccp.c @@ -855,21 +855,6 @@ ccp_fold (tree stmt) use this expression. */ if (retval && ! is_gimple_min_invariant (retval)) return NULL; - - /* If we could not fold the expression, but the arguments are all - constants and gimple values, then build and return the new - expression. - - In some cases the new expression is still something we can - use as a replacement for an argument. This happens with - NOP conversions of types for example. - - In other cases the new expression can not be used as a - replacement for an argument (as it would create non-gimple - code). But the new expression can still be used to derive - other constants. */ - if (! retval && is_gimple_min_invariant (op0)) - return build1 (code, TREE_TYPE (rhs), op0); } /* Binary and comparison operators. We know one or both of the @@ -906,23 +891,6 @@ ccp_fold (tree stmt) use this expression. */ if (retval && ! is_gimple_min_invariant (retval)) return NULL; - - /* If we could not fold the expression, but the arguments are all - constants and gimple values, then build and return the new - expression. - - In some cases the new expression is still something we can - use as a replacement for an argument. This happens with - NOP conversions of types for example. - - In other cases the new expression can not be used as a - replacement for an argument (as it would create non-gimple - code). But the new expression can still be used to derive - other constants. */ - if (! retval - && is_gimple_min_invariant (op0) - && is_gimple_min_invariant (op1)) - return build (code, TREE_TYPE (rhs), op0, op1); } /* We may be able to fold away calls to builtin functions if their -- cgit v1.1