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arm.c (arm_legitimate_index_p): For QImode the range of an offset is -4095...+4095 inclusive.

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* arm.c (arm_legitimate_index_p): For QImode the range of an offset
is -4095...+4095 inclusive.

From-SVN: r78429
This commit is contained in:
Richard Earnshaw 2004-02-25 12:30:13 +00:00 committed by Richard Earnshaw
parent 94b18ec10c
commit e1471c91b8
2 changed files with 9 additions and 2 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2004-02-25 Richard Earnshaw <rearnsha@arm.com>
* arm.c (arm_legitimate_index_p): For QImode the range of an offset
is -4095...+4095 inclusive.
2004-02-25 Eric Botcazou <ebotcazou@libertysurf.fr> 2004-02-25 Eric Botcazou <ebotcazou@libertysurf.fr>
* doc/install.texi (sparc-sun-solaris2* specific notes): Document * doc/install.texi (sparc-sun-solaris2* specific notes): Document

6
gcc/config/arm/arm.c
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@ -2979,8 +2979,10 @@ arm_legitimate_index_p (enum machine_mode mode, rtx index, int strict_p)
load, but that has a restricted addressing range and we are unable load, but that has a restricted addressing range and we are unable
to tell here whether that is the case. To be safe we restrict all to tell here whether that is the case. To be safe we restrict all
loads to that range. */ loads to that range. */
range = ((mode) == HImode || (mode) == QImode) if (arm_arch4)
? (arm_arch4 ? 256 : 4095) : 4096; range = (mode == HImode || mode == QImode) ? 256 : 4096;
else
range = (mode == HImode) ? 4095 : 4096;
return (code == CONST_INT return (code == CONST_INT
&& INTVAL (index) < range && INTVAL (index) < range