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re PR target/51915 (ICE in output_move_double)

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PR target/51915
	* config/arm/arm.c (arm_count_output_move_double_insns): Call
	output_move_double on a copy of operands array.

	* gcc.target/arm/pr51915.c: New test.

From-SVN: r183349
This commit is contained in:
Jakub Jelinek 2012-01-20 20:39:48 +01:00 committed by Jakub Jelinek
parent 2d663cb94c
commit 4c2708c580
4 changed files with 30 additions and 1 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2012-01-20 Jakub Jelinek <jakub@redhat.com>
PR target/51915
* config/arm/arm.c (arm_count_output_move_double_insns): Call
output_move_double on a copy of operands array.
2012-01-20 Cary Coutant <ccoutant@google.com>
Dodji Seketeli <dodji@redhat.com>

7
gcc/config/arm/arm.c
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@ -24664,7 +24664,12 @@ int
arm_count_output_move_double_insns (rtx *operands)
{
int count;
output_move_double (operands, false, &count);
rtx ops[2];
/* output_move_double may modify the operands array, so call it
here on a copy of the array. */
ops[0] = operands[0];
ops[1] = operands[1];
output_move_double (ops, false, &count);
return count;
}

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2012-01-20 Jakub Jelinek <jakub@redhat.com>
PR target/51915
* gcc.target/arm/pr51915.c: New test.
2012-01-20 Cary Coutant <ccoutant@google.com>
Dodji Seketeli <dodji@redhat.com>

13
gcc/testsuite/gcc.target/arm/pr51915.c Normal file
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@ -0,0 +1,13 @@
/* PR target/51915 */
/* { dg-do compile } */
/* { dg-options "-march=armv7-a -mfloat-abi=hard -O2" } */
struct S { int s1; void *s2; };
struct T { struct S t1; unsigned long long t2; };
struct S *foo (unsigned long long);
struct S *
bar (struct S *x)
{
return foo (((struct T *) x)->t2);
}