From dda5c83188f8a345990dfc6577b348a0240ba440 Mon Sep 17 00:00:00 2001 From: Kyrylo Tkachov Date: Tue, 22 Dec 2015 10:42:47 +0000 Subject: [PATCH] [combine] Check WORD_REGISTER_OPERATIONS normally rather than through preprocessor * combine.c (simplify_comparison): Convert preprocessor check of WORD_REGISTER_OPERATIONS into runtime check. From-SVN: r231899 --- gcc/ChangeLog | 5 +++++ gcc/combine.c | 5 ++--- 2 files changed, 7 insertions(+), 3 deletions(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index da6b92345d7..b314c1aeab2 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2015-12-22 Kyrylo Tkachov + + * combine.c (simplify_comparison): Convert preprocessor check of + WORD_REGISTER_OPERATIONS into runtime check. + 2015-12-22 Eric Botcazou PR debug/60756 diff --git a/gcc/combine.c b/gcc/combine.c index 317a4b0e12a..a29ae7b5b46 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -11437,10 +11437,10 @@ simplify_comparison (enum rtx_code code, rtx *pop0, rtx *pop1) /* Try a few ways of applying the same transformation to both operands. */ while (1) { -#if !WORD_REGISTER_OPERATIONS /* The test below this one won't handle SIGN_EXTENDs on these machines, so check specially. */ - if (code != GTU && code != GEU && code != LTU && code != LEU + if (!WORD_REGISTER_OPERATIONS + && code != GTU && code != GEU && code != LTU && code != LEU && GET_CODE (op0) == ASHIFTRT && GET_CODE (op1) == ASHIFTRT && GET_CODE (XEXP (op0, 0)) == ASHIFT && GET_CODE (XEXP (op1, 0)) == ASHIFT @@ -11460,7 +11460,6 @@ simplify_comparison (enum rtx_code code, rtx *pop0, rtx *pop1) op0 = SUBREG_REG (XEXP (XEXP (op0, 0), 0)); op1 = SUBREG_REG (XEXP (XEXP (op1, 0), 0)); } -#endif /* If both operands are the same constant shift, see if we can ignore the shift. We can if the shift is a rotate or if the bits shifted out of -- 2.30.2