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Fix PowerPC tests in PR 81535.

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gcc/testsuite/

2018-02-16  Yury Gribov  <tetra2005@gmail.com>

	PR target/81535
	* gcc.dg/pr56727-1.c: Prevent tailcalls and update for powerpc*-*-*.
	* gcc.dg/pr56727-2.c: Ditto.
	* gcc.target/powerpc/pr79439.c: Renamed to...
	* gcc.target/powerpc/pr79439-1.c: ...this.
	* gcc.target/powerpc/pr79439-2.c: New test.
	* gcc.target/powerpc/pr79439-3.c: New test.

From-SVN: r257760
This commit is contained in:
Yury Gribov 2018-02-16 20:38:14 +00:00 committed by Yury Gribov
parent 023e7b5526
commit e1617c1d38
6 changed files with 78 additions and 6 deletions
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10
gcc/testsuite/ChangeLog
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@ -1,3 +1,13 @@
2018-02-16 Yury Gribov <tetra2005@gmail.com>
PR target/81535
* gcc.dg/pr56727-1.c: Prevent tailcalls and update for powerpc*-*-*.
* gcc.dg/pr56727-2.c: Ditto.
* gcc.target/powerpc/pr79439.c: Renamed to...
* gcc.target/powerpc/pr79439-1.c: ...this.
* gcc.target/powerpc/pr79439-2.c: New test.
* gcc.target/powerpc/pr79439-3.c: New test.
2018-02-16 Will Schmidt <will_schmidt@vnet.ibm.com>
target/pr84371

5
gcc/testsuite/gcc.dg/pr56727-1.c
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@ -1,6 +1,5 @@
/* { dg-do compile { target fpic } } */
/* { dg-options "-O2 -fPIC" } */
/* { dg-final { scan-assembler-not "@(PLT|plt)" { target i?86-*-* x86_64-*-* powerpc*-*-* } } } */
#define define_func(type) \
void f_ ## type (type b) { f_ ## type (0); } \
@ -21,3 +20,7 @@ int __attribute__((noinline, noclone)) foo_noinline(int n)
{
return (n == 1 || n == 2) ? 1 : foo_noinline(n-1) * foo_noinline(n-2);
}
/* { dg-final { scan-assembler-not "@(PLT|plt)" { target i?86-*-* x86_64-*-* } } } */
/* { dg-final { scan-assembler-not "@(PLT|plt)" { target { powerpc*-*-* && ilp32 } } } } */
/* { dg-final { scan-assembler-not "bl \[a-z_\]*\n\\s*nop" { target { powerpc*-*-* && lp64 } } } } */

6
gcc/testsuite/gcc.dg/pr56727-2.c
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@ -1,11 +1,11 @@
/* { dg-do compile { target fpic } } */
/* { dg-options "-O2 -fPIC" } */
/* { dg-require-alias "" } */
/* { dg-final { scan-assembler "@(PLT|plt)" { target i?86-*-* x86_64-*-* powerpc*-*-linux* } } } */
__attribute__((noinline, noclone))
void f (short b)
{
__builtin_setjmp (0); /* Prevent tailcall */
f (0);
}
@ -15,3 +15,7 @@ void h ()
{
g (0);
}
/* { dg-final { scan-assembler "@(PLT|plt)" { target i?86-*-* x86_64-*-* } } } */
/* { dg-final { scan-assembler "@(PLT|plt)" { target { powerpc*-*-linux* && ilp32 } } } } */
/* { dg-final { scan-assembler "bl f\n\\s*nop" { target { powerpc*-*-linux* && lp64 } } } } */

28
gcc/testsuite/gcc.target/powerpc/pr79439-1.c Normal file
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@ -0,0 +1,28 @@
/* { dg-do compile { target { powerpc*-*-linux* && lp64 } } } */
/* { dg-options "-O2 -fpic -fno-reorder-blocks" } */
/* On the Linux 64-bit ABIs, we eliminate NOP in the 'rec' call even if
-fpic is used. The recursive call should call the local alias. The
Linux 32-bit ABIs do not require NOPs after the BL instruction. */
int f (void);
void
g (void)
{
}
int
rec (int a)
{
int ret = 0;
if (a > 10 && f ())
ret += rec (a - 1);
g ();
return a + ret;
}
/* { dg-final { scan-assembler-times {\mbl f\M} 1 } } */
/* { dg-final { scan-assembler-times {\mbl g\M} 1 } } */
/* { dg-final { scan-assembler-times {\mbl rec\M} 1 } } */
/* { dg-final { scan-assembler-times {\mnop\M} 2 } } */

10
gcc/testsuite/gcc.target/powerpc/pr79439.c → gcc/testsuite/gcc.target/powerpc/pr79439-2.c
View File

@ -1,9 +1,9 @@
/* { dg-do compile { target { powerpc64*-*-linux* && lp64 } } } */
/* { dg-options "-O2 -fpic" } */
/* { dg-do compile { target { powerpc*-*-linux* && lp64 } } } */
/* { dg-options "-O2 -fpic -fno-reorder-blocks" } */
/* On the Linux 64-bit ABIs, we should not eliminate NOP in the 'rec' call if
-fpic is used because rec can be interposed at link time (since it is
external), and the recursive call should call the interposed function. The
-fpic is used because rec can be interposed at link time (since it has an
alias), and the recursive call should call the interposed function. The
Linux 32-bit ABIs do not require NOPs after the BL instruction. */
int f (void);
@ -23,6 +23,8 @@ rec (int a)
return a + ret;
}
int rec_alias (int) __attribute__ ((alias ("rec")));
/* { dg-final { scan-assembler-times {\mbl f\M} 1 } } */
/* { dg-final { scan-assembler-times {\mbl g\M} 1 } } */
/* { dg-final { scan-assembler-times {\mbl rec\M} 1 } } */

25
gcc/testsuite/gcc.target/powerpc/pr79439-3.c Normal file
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@ -0,0 +1,25 @@
/* { dg-do compile { target { powerpc-*-linux* && ilp32 } } } */
/* { dg-options "-O2 -fpic -fno-reorder-blocks" } */
/* Analog of pr79439-1.c for 32-bit Linux. */
int f (void);
void
g (void)
{
}
int
rec (int a)
{
int ret = 0;
if (a > 10 && f ())
ret += rec (a - 1);
g ();
return a + ret;
}
/* { dg-final { scan-assembler-times {\mbl f@plt\M} 1 } } */
/* { dg-final { scan-assembler-times {\mbl g@plt\M} 1 } } */
/* { dg-final { scan-assembler-times {\mbl rec@plt\M} 0 } } */