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[ARC] Fix tst_bitfield_tst pattern.

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gcc/
2017-03-13  Claudiu Zissulescu  <claziss@synopsys.com>

	* config/arc/arc.md (*tst_bitfield_tst): Fix pattern.

gcc/testsuite
2017-03-13  Claudiu Zissulescu  <claziss@synopsys.com>

	* testsuite/gcc.target/arc/bitfield.c: New file.

From-SVN: r246090
This commit is contained in:
Claudiu Zissulescu 2017-03-13 13:56:11 +01:00 committed by Claudiu Zissulescu
parent fa9c1b3c07
commit 8c56cc5a88
4 changed files with 37 additions and 1 deletions
gcc
ChangeLog
config/arc
arc.md
testsuite
ChangeLog
gcc.target/arc
bitfield.c

4
gcc/ChangeLog

@ -1,3 +1,7 @@
2017-03-13 Claudiu Zissulescu <claziss@synopsys.com>
* config/arc/arc.md (*tst_bitfield_tst): Fix pattern.
2017-03-13 Claudiu Zissulescu <claziss@synopsys.com>
* config/arc/arc.c (arc_output_addsi): Emit code density adds.

2
gcc/config/arc/arc.md

@ -901,7 +901,7 @@
&& (INTVAL (operands[3]) + INTVAL (operands[2]) <= 11
|| (INTVAL (operands[3]) <= 11
&& INTVAL (operands[3]) + INTVAL (operands[2]) == 32))"
"tst %1,(1<<%2)-1<<%3"
"tst %1,((1<<%2)-1)<<%3"
[(set_attr "type" "compare")
(set_attr "cond" "set_zn")
(set_attr "length" "4")])

4
gcc/testsuite/ChangeLog

@ -1,3 +1,7 @@
2017-03-13 Claudiu Zissulescu <claziss@synopsys.com>
* testsuite/gcc.target/arc/bitfield.c: New file.
2017-03-13 Claudiu Zissulescu <claziss@synopsys.com>
* testsuite/gcc.target/arc/pr9001090948.c: New file.

28
gcc/testsuite/gcc.target/arc/bitfield.c Executable file

@ -0,0 +1,28 @@
/* { dg-do run } */
/* { dg-options "-O2" } */
#include <stdlib.h>
struct ubifs_budget_req {
unsigned int fast:7;
unsigned int new_ino_d:13;
};
int printf(const char *format, ...);
void __attribute__ ((noinline))
fff(struct ubifs_budget_req *req)
{
if (req->new_ino_d & 7)
abort ();
}
int main (void)
{
struct ubifs_budget_req req = {
.fast = 8,
.new_ino_d = 0,
};
fff(&req);
return 0;
}