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re PR tree-optimization/77937 (ICE: in replace_one_candidate, at gimple-ssa-strength-reduction.c:3370) 

2016-10-13  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

	PR tree-optimization/77937
	* gcc.dg/torture/pr77937-1.c: New.
	* gcc.dg/torture/pr77937-2.c: New.

From-SVN: r241139
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Bill Schmidt 2016-10-13 19:50:41 +00:00 committed by William Schmidt
parent 2437d31d0e
commit a269531973
3 changed files with 37 additions and 0 deletions
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6
gcc/testsuite/ChangeLog
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@ -1,3 +1,9 @@
2016-10-13 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
PR tree-optimization/77937
* gcc.dg/torture/pr77937-1.c: New.
* gcc.dg/torture/pr77937-2.c: New.
2016-10-13 Jakub Jelinek <jakub@redhat.com>
* g++.dg/cpp1z/inline-var1.C: New test.

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gcc/testsuite/gcc.dg/torture/pr77937-1.c Normal file
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/* { dg-do compile } */
/* { dg-do options "-O3 -march=amdfam10" { target { x86_64-*-* } } } */
int *a;
int b, c, d;
void fn1(char *p1, int p2) {
int x;
while (1) {
x = 0;
for (; x < 8; x++)
p1[0] = -a[0] * d + p1[0] * c + 1 >> b >> 1;
p1 += p2;
}
}

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gcc/testsuite/gcc.dg/torture/pr77937-2.c Normal file
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/* { dg-do compile } */
/* { dg-do options "-O3 -march=amdfam10" { target { x86_64-*-* } } } */
extern int fn2(int);
extern int fn3(int);
int a, b, c;
void fn1(long p1) {
char *d;
for (;; d += p1) {
d[0] = fn2(1 >> a);
fn3(0);
fn3(c >> a);
d[1] = fn3(d[1] * b + c >> a);
d[4] = fn3(d[4] * b + c >> a);
d[5] = fn3(d[5] * b + c >> a);
}
}