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| author | Richard Kenner <kenner@gcc.gnu.org> | 1993-10-19 19:20:04 -0400 |
|---|---|---|
| committer | Richard Kenner <kenner@gcc.gnu.org> | 1993-10-19 19:20:04 -0400 |
| commit | ca76982841fd54733f9d6e9cb380453675978204 (patch) | |
| tree | 4c3c9e3eec798df975f74296417d4b76b0766652 /gcc/reload.c | |
| parent | 98c131c38295833821a84f9dc834b7a2dc127856 (diff) | |
| download | gcc-ca76982841fd54733f9d6e9cb380453675978204.zip gcc-ca76982841fd54733f9d6e9cb380453675978204.tar.gz gcc-ca76982841fd54733f9d6e9cb380453675978204.tar.bz2 | |
(push_reload, find_reloads): If an operand is a SUBREG of a PLUS,
force a reload and reload what is inside.
From-SVN: r5814
Diffstat (limited to 'gcc/reload.c')
| -rw-r--r-- | gcc/reload.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/gcc/reload.c b/gcc/reload.c index 46df172..ca2ed81 100644 --- a/gcc/reload.c +++ b/gcc/reload.c @@ -615,7 +615,7 @@ push_reload (in, out, inloc, outloc, class, } /* If we are reloading a (SUBREG constant ...), really reload just the - inside expression in its own mode. + inside expression in its own mode. Similarly for (SUBREG (PLUS ...)). If we have (SUBREG:M1 (MEM:M2 ...) ...) (or an inner REG that is still a pseudo and hence will become a MEM) with M1 wider than M2 and the register is a pseudo, also reload the inside expression. @@ -639,6 +639,7 @@ push_reload (in, out, inloc, outloc, class, if (in != 0 && GET_CODE (in) == SUBREG && (CONSTANT_P (SUBREG_REG (in)) + || GET_CODE (SUBREG_REG (in)) == PLUS || strict_low || (((GET_CODE (SUBREG_REG (in)) == REG && REGNO (SUBREG_REG (in)) >= FIRST_PSEUDO_REGISTER) @@ -2599,9 +2600,10 @@ find_reloads (insn, replace, ind_levels, live_known, reload_reg_p) { offset += SUBREG_WORD (operand); operand = SUBREG_REG (operand); - /* Force reload if this is a constant or if there may may + /* Force reload if this is a constant or PLUS or if there may may be a problem accessing OPERAND in the outer mode. */ if (CONSTANT_P (operand) + || GET_CODE (operand) == PLUS #ifdef LOAD_EXTEND_OP /* If we have a SUBREG where both the inner and outer modes are different size but no wider than a word, |