From af1b1eb575b76f405c64ab7d168b075527fcc831 Mon Sep 17 00:00:00 2001 From: nemet Date: Tue, 23 Jun 2009 00:31:44 +0000 Subject: [PATCH] * combine.c (combine_simplify_rtx): Remove TRULY_NOOP_TRUNCATION check when calling force_to_mode on TRUNCATE's operand. testsuite/ * gcc.target/mips/truncate-3.c: New test. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@148827 138bc75d-0d04-0410-961f-82ee72b054a4 --- gcc/ChangeLog | 5 +++++ gcc/combine.c | 4 +--- gcc/testsuite/ChangeLog | 4 ++++ gcc/testsuite/gcc.target/mips/truncate-3.c | 11 +++++++++++ 4 files changed, 21 insertions(+), 3 deletions(-) create mode 100644 gcc/testsuite/gcc.target/mips/truncate-3.c diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 59a4f3557b5..2a283790554 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2009-06-22 Adam Nemet + + * combine.c (combine_simplify_rtx): Remove TRULY_NOOP_TRUNCATION + check when calling force_to_mode on TRUNCATE's operand. + 2009-06-22 Ian Lance Taylor * config/rs6000/rs6000.opt: Move msched-epilog before diff --git a/gcc/combine.c b/gcc/combine.c index b7c4f1cc231..abe43b9a895 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -4889,9 +4889,7 @@ combine_simplify_rtx (rtx x, enum machine_mode op0_mode, int in_dest) if (GET_MODE_CLASS (mode) == MODE_PARTIAL_INT) break; - if (GET_MODE_BITSIZE (mode) <= HOST_BITS_PER_WIDE_INT - && TRULY_NOOP_TRUNCATION (GET_MODE_BITSIZE (mode), - GET_MODE_BITSIZE (GET_MODE (XEXP (x, 0))))) + if (GET_MODE_BITSIZE (mode) <= HOST_BITS_PER_WIDE_INT) SUBST (XEXP (x, 0), force_to_mode (XEXP (x, 0), GET_MODE (XEXP (x, 0)), GET_MODE_MASK (mode), 0)); diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 59918e1f40b..7dbb38fcff8 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,7 @@ +2009-06-22 Adam Nemet + + * gcc.target/mips/truncate-3.c: New test. + 2009-06-22 Janus Weil PR fortran/37254 diff --git a/gcc/testsuite/gcc.target/mips/truncate-3.c b/gcc/testsuite/gcc.target/mips/truncate-3.c new file mode 100644 index 00000000000..90f2c772f83 --- /dev/null +++ b/gcc/testsuite/gcc.target/mips/truncate-3.c @@ -0,0 +1,11 @@ +/* Remove redundant operations in truncate's operand. */ +/* { dg-options "-O -mgp64" } */ +/* { dg-final { scan-assembler-not "\tandi?\t" } } */ + +f (long long d) +{ + long long c = d & 0xffffffffff; + int i = (int) c; + g (i); +} + -- 2.11.4.GIT