From 79a80d86c386ac97fecde94d3bb4084017f58f37 Mon Sep 17 00:00:00 2001 From: uros Date: Thu, 10 Sep 2009 15:14:39 +0000 Subject: [PATCH] Revert: 2009-09-09 Uros Bizjak PR rtl-optimization/39779 * expr.c (convert_modes): Return when mode == oldmode after CONST_INTs are processed. testsuite/ChangeLog: Revert: 2009-09-09 Uros Bizjak PR rtl-optimization/39779 * gcc.dg/pr39979.c: New test. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@151596 138bc75d-0d04-0410-961f-82ee72b054a4 --- gcc/ChangeLog | 9 +++++++++ gcc/expr.c | 6 +++--- gcc/testsuite/ChangeLog | 8 ++++++++ 3 files changed, 20 insertions(+), 3 deletions(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 752b1a7dd7d..69d80ea2ef4 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,12 @@ +2009-09-10 Uros Bizjak + + Revert: + 2009-09-09 Uros Bizjak + + PR rtl-optimization/39779 + * expr.c (convert_modes): Return when mode == oldmode after + CONST_INTs are processed. + 2009-09-10 Nick Clifton * config/mep/mep.c (mep_encode_section_info): Copy weakness diff --git a/gcc/expr.c b/gcc/expr.c index fe74280d7fe..cd5eae16880 100644 --- a/gcc/expr.c +++ b/gcc/expr.c @@ -761,6 +761,9 @@ convert_modes (enum machine_mode mode, enum machine_mode oldmode, rtx x, int uns if (GET_MODE (x) != VOIDmode) oldmode = GET_MODE (x); + if (mode == oldmode) + return x; + /* There is one case that we must handle specially: If we are converting a CONST_INT into a mode whose size is twice HOST_BITS_PER_WIDE_INT and we are to interpret the constant as unsigned, gen_lowpart will do @@ -826,9 +829,6 @@ convert_modes (enum machine_mode mode, enum machine_mode oldmode, rtx x, int uns return gen_lowpart (mode, x); } - if (mode == oldmode) - return x; - /* Converting from integer constant into mode is always equivalent to an subreg operation. */ if (VECTOR_MODE_P (mode) && GET_MODE (x) == VOIDmode) diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index c3d6c52f9a4..03271ae82f6 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,11 @@ +2009-09-10 Uros Bizjak + + Revert: + 2009-09-09 Uros Bizjak + + PR rtl-optimization/39779 + * gcc.dg/pr39979.c: New test. + 2009-09-10 Richard Guenther PR middle-end/41257 -- 2.11.0