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re PR target/20018 ([ia64] unable to find a register to spill in class`PR_REG') 

PR target/20018
	PR rtl-optimization/20097
	* simplify-rtx.c (simplify_relational_operation_1): Avoid creating
	BImode SUBREGs of SImode registers which confuse the ia64 backend.

From-SVN: r95461
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Roger Sayle 2005-02-23 18:20:52 +00:00 committed by Roger Sayle
parent 1628a835c0
commit 61961eff56
2 changed files with 9 additions and 0 deletions
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gcc/ChangeLog
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@ -1,3 +1,10 @@
2005-02-23 Roger Sayle <roger@eyesopen.com>
PR target/20018
PR rtl-optimization/20097
* simplify-rtx.c (simplify_relational_operation_1): Avoid creating
BImode SUBREGs of SImode registers which confuse the ia64 backend.
2005-02-23 David Edelsohn <edelsohn@gnu.org>
* t-aix43 (SHLIB_INSTALL): Create directory for shared library.

2
gcc/simplify-rtx.c
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@ -2887,6 +2887,8 @@ simplify_relational_operation_1 (enum rtx_code code, enum machine_mode mode,
&& op1 == const0_rtx
&& GET_MODE_CLASS (mode) == MODE_INT
&& cmp_mode != VOIDmode
/* ??? Work-around BImode bugs in the ia64 backend. */
&& mode != BImode
&& cmp_mode != BImode
&& nonzero_bits (op0, cmp_mode) == 1
&& STORE_FLAG_VALUE == 1)