From 6320cec904d2e166f92d448407cdcb628ac7f3c2 Mon Sep 17 00:00:00 2001 From: Jakub Jelinek Date: Thu, 23 May 2002 10:14:35 +0200 Subject: [PATCH] combine.c (force_to_mode): Use gen_int_mode. * combine.c (force_to_mode): Use gen_int_mode. Don't clear CONST_INT bits outside of mode. * gcc.dg/20020517-1.c: New test. From-SVN: r53777 --- gcc/ChangeLog | 5 +++++ gcc/combine.c | 21 +-------------------- gcc/testsuite/ChangeLog | 4 ++++ 3 files changed, 10 insertions(+), 20 deletions(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index dd269fa94858..65a5ed22b00c 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2002-05-23 Jakub Jelinek + + * combine.c (force_to_mode): Use gen_int_mode. + Don't clear CONST_INT bits outside of mode. + 2002-05-23 Jakub Jelinek * configure.in: Fix as version test for binutils 2.12.1 releases diff --git a/gcc/combine.c b/gcc/combine.c index bb22b0cdfb8c..44bcdee6c190 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -6697,18 +6697,7 @@ force_to_mode (x, mode, mask, reg, just_select) /* If X is a CONST_INT, return a new one. Do this here since the test below will fail. */ if (GET_CODE (x) == CONST_INT) - { - HOST_WIDE_INT cval = INTVAL (x) & mask; - int width = GET_MODE_BITSIZE (mode); - - /* If MODE is narrower that HOST_WIDE_INT and CVAL is a negative - number, sign extend it. */ - if (width > 0 && width < HOST_BITS_PER_WIDE_INT - && (cval & ((HOST_WIDE_INT) 1 << (width - 1))) != 0) - cval |= (HOST_WIDE_INT) -1 << width; - - return GEN_INT (cval); - } + return gen_int_mode (INTVAL (x) & mask, mode); /* If X is narrower than MODE and we want all the bits in X's mode, just get X in the proper mode. */ @@ -6914,14 +6903,6 @@ force_to_mode (x, mode, mask, reg, just_select) force_to_mode (XEXP (x, 1), mode, mask, reg, next_select)); - /* If OP1 is a CONST_INT and X is an IOR or XOR, clear bits outside - MASK since OP1 might have been sign-extended but we never want - to turn on extra bits, since combine might have previously relied - on them being off. */ - if (GET_CODE (op1) == CONST_INT && (code == IOR || code == XOR) - && (INTVAL (op1) & mask) != 0) - op1 = GEN_INT (INTVAL (op1) & mask); - if (op_mode != GET_MODE (x) || op0 != XEXP (x, 0) || op1 != XEXP (x, 1)) x = gen_binary (code, op_mode, op0, op1); break; diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 52c4b08c3bf3..cc2e3e8d9803 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,7 @@ +2002-05-23 Jakub Jelinek + + * gcc.dg/20020517-1.c: New test. + 2002-05-22 Andreas Jaeger * gcc.c-torture/execute/loop-2c.x: Remove, the test should pass -- 2.47.2