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re PR target/12598 (Invalid size optimization on volatile memory reference)

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PR target/12598
	* gcc.dg/torture/cris-volatile-1.c: New test.

From-SVN: r72520
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Hans-Peter Nilsson 2003-10-15 14:03:15 +00:00 • committed by Hans-Peter Nilsson
parent 6c73e9f7f9
commit c546e1855c
2 changed files with 77 additions and 0 deletions
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5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2003-10-15 Hans-Peter Nilsson <hp@axis.com>
PR target/12598
* gcc.dg/torture/cris-volatile-1.c: New test.
2003-10-14 Roger Sayle <roger@eyesopen.com>
PR optimization/9325

72
gcc/testsuite/gcc.dg/torture/cris-volatile-1.c Normal file
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/* Copyright (C) 2003 Free Software Foundation.
Check that size-optimizations for move insns (specifically peephole
optimizations) aren't applied to volatile objects in the CRIS port.
Origin: Hans-Peter Nilsson. */
/* { dg-do compile { target cris-*-* } } */
/* { dg-final { scan-assembler-not {movu\...\[} } } */
/* { dg-final { scan-assembler-not {move\.[^d].\[} } } */
/* { dg-final { scan-assembler-not {and\.[^d].\[} } } */
/* { dg-final { scan-assembler-not {or\.[^d].\[} } } */
static const unsigned long c = 0x0000FF00;
unsigned long
a1 (void)
{
unsigned long m;
m = *(volatile unsigned long*) 0xb00000c8;
m &= c;
return m;
}
extern volatile unsigned long xx;
unsigned long
a2 (void)
{
unsigned long m;
m = xx;
m &= c;
return m;
}
extern volatile unsigned long yy[];
unsigned long
a3 (void)
{
unsigned long m;
m = yy[3];
m &= 0xfe00;
return m;
}
unsigned long
ac1 (void)
{
unsigned long m;
m = *(volatile unsigned long*) 0xb00000c8;
m &= 0xfe00;
return m;
}
extern volatile unsigned long xx;
unsigned long
ac2 (void)
{
unsigned long m;
m = xx;
m &= 0xfe00;
return m;
}
extern volatile unsigned long yy[];
unsigned long
ac3 (void)
{
unsigned long m;
m = yy[3];
m &= 0xfe00;
return m;
}
extern volatile unsigned long yy[];
unsigned long
oc3 (void)
{
unsigned long m;
m = yy[3];
m |= ~0xf;
return m;
}