From 2ee5437b4860dcdf3868a9195b1e5d259dfe5a6b Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Mon, 14 Aug 2000 13:08:25 -0700 Subject: [PATCH] expr.c (emit_group_load): Don't force constants into registers. * expr.c (emit_group_load): Don't force constants into registers. Special case source already in the correct mode. From-SVN: r35683 --- gcc/ChangeLog | 5 +++++ gcc/expr.c | 6 +++++- 2 files changed, 10 insertions(+), 1 deletion(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 16bd605e533..37c992d258d 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2000-08-14 Richard Henderson + + * expr.c (emit_group_load): Don't force constants into registers. + Special case source already in the correct mode. + 2000-08-14 Zack Weinberg * configure.in: Accept *-*-linux* not just *-*-linux-gnu*. diff --git a/gcc/expr.c b/gcc/expr.c index 5a3c303fa4b..2592a58a66a 100644 --- a/gcc/expr.c +++ b/gcc/expr.c @@ -1938,7 +1938,7 @@ emit_group_load (dst, orig_src, ssize, align) /* If we won't be loading directly from memory, protect the real source from strange tricks we might play. */ src = orig_src; - if (GET_CODE (src) != MEM) + if (GET_CODE (src) != MEM && ! CONSTANT_P (src)) { if (GET_MODE (src) == VOIDmode) src = gen_reg_rtx (GET_MODE (dst)); @@ -1987,6 +1987,10 @@ emit_group_load (dst, orig_src, ssize, align) else abort (); } + else if ((CONSTANT_P (src) + && (GET_MODE (src) == VOIDmode || GET_MODE (src) == mode)) + || (GET_CODE (src) == REG && GET_MODE (src) == mode)) + tmps[i] = src; else tmps[i] = extract_bit_field (src, bytelen * BITS_PER_UNIT, bytepos * BITS_PER_UNIT, 1, NULL_RTX, -- 2.30.2