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Mark r20 as fixed. Mark r21 not fixed & allocatable in callee. 

From-SVN: r232682
This commit is contained in:
Ajit Agarwal 2016-01-21 17:10:54 +00:00 committed by Michael Eager
parent c7b19145ca
commit 128c78a6fb
2 changed files with 8 additions and 2 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2016-01-21 Ajit Agarwal <ajitkum@xilinx.com>
* config/microblaze/microblaze.h
(FIXED_REGISTERS): Update in macro.
(CALL_USED_REGISTERS): Update in macro.
2016-01-21 Yuri Rumyantsev <ysrumyan@gmail.com>
PR rtl-optimization/68920

4
gcc/config/microblaze/microblaze.h
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@ -253,14 +253,14 @@ extern enum pipeline_type microblaze_pipe;
#define FIXED_REGISTERS \
{ \
1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, \
1, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
1, 1, 1, 1 \
}
#define CALL_USED_REGISTERS \
{ \
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, \
1, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
1, 1, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
1, 1, 1, 1 \
}
#define GP_REG_FIRST 0