RE: [PATCH 02/13] arm: Add tests for PR target/100757

[Kyrylo Tkachov <Kyrylo.Tkachov@arm.com>]

> -----Original Message-----
> From: Gcc-patches <gcc-patches-
> bounces+kyrylo.tkachov=arm.com@gcc.gnu.org> On Behalf Of Christophe
> Lyon via Gcc-patches
> Sent: 07 September 2021 10:15
> To: gcc-patches@gcc.gnu.org
> Subject: [PATCH 02/13] arm: Add tests for PR target/100757
> 
> These tests currently trigger an ICE which is fixed later in the patch
> series.
> 
> The pr100757*.c testcases are derived from
> gcc.c-torture/compile/20160205-1.c, forcing the use of MVE, and using
> various types and return values different from 0 and 1 to avoid
> commonalization with boolean masks.  In addition, since we should not
> need these masks, the tests make sure they are not present.

Ok, but I'd rather it was committed together with the patch that fixes the ICE.
I don't mind if it's a separate commit or rolled into that patch.

Thanks,
Kyrill

> 
> 2021-09-01  Christophe Lyon  <christophe.lyon@foss.st.com>
> 
> 	gcc/testsuite/
> 	PR target/100757
> 	* gcc.target/arm/simd/pr100757-2.c: New.
> 	* gcc.target/arm/simd/pr100757-3.c: New.
> 	* gcc.target/arm/simd/pr100757-4.c: New.
> 	* gcc.target/arm/simd/pr100757.c: New.
> 
> diff --git a/gcc/testsuite/gcc.target/arm/simd/pr100757-2.c
> b/gcc/testsuite/gcc.target/arm/simd/pr100757-2.c
> new file mode 100644
> index 00000000000..c2262b4d81e
> --- /dev/null
> +++ b/gcc/testsuite/gcc.target/arm/simd/pr100757-2.c
> @@ -0,0 +1,20 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target arm_v8_1m_mve_fp_ok } */
> +/* { dg-add-options arm_v8_1m_mve_fp } */
> +/* { dg-additional-options "-O3 -funsafe-math-optimizations" } */
> +/* Derived from gcc.c-torture/compile/20160205-1.c.  */
> +
> +float a[32];
> +int fn1(int d) {
> +  int c = 4;
> +  for (int b = 0; b < 32; b++)
> +    if (a[b] != 2.0f)
> +      c = 5;
> +  return c;
> +}
> +
> +/* { dg-final { scan-assembler-times {\t.word\t1073741824\n} 4 } } */ /*
> Constant 2.0f.  */
> +/* { dg-final { scan-assembler-times {\t.word\t4\n} 4 } } */ /* Initial value
> for c.  */
> +/* { dg-final { scan-assembler-times {\t.word\t5\n} 4 } } */ /* Possible
> value for c.  */
> +/* { dg-final { scan-assembler-not {\t.word\t1\n} } } */ /* 'true' mask.  */
> +/* { dg-final { scan-assembler-not {\t.word\t0\n} } } */ /* 'false' mask.  */
> diff --git a/gcc/testsuite/gcc.target/arm/simd/pr100757-3.c
> b/gcc/testsuite/gcc.target/arm/simd/pr100757-3.c
> new file mode 100644
> index 00000000000..e604555c04c
> --- /dev/null
> +++ b/gcc/testsuite/gcc.target/arm/simd/pr100757-3.c
> @@ -0,0 +1,20 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target arm_v8_1m_mve_fp_ok } */
> +/* { dg-add-options arm_v8_1m_mve_fp } */
> +/* { dg-additional-options "-O3 -funsafe-math-optimizations" } */
> +/* Copied from gcc.c-torture/compile/20160205-1.c.  */
> +
> +float a[32];
> +float fn1(int d) {
> +  float c = 4.0f;
> +  for (int b = 0; b < 32; b++)
> +    if (a[b] != 2.0f)
> +      c = 5.0f;
> +  return c;
> +}
> +
> +/* { dg-final { scan-assembler-times {\t.word\t1073741824\n} 4 } } */ /*
> Constant 2.0f.  */
> +/* { dg-final { scan-assembler-times {\t.word\t1084227584\n} 4 } } */ /*
> Initial value for c (4.0).  */
> +/* { dg-final { scan-assembler-times {\t.word\t1082130432\n} 4 } } */ /*
> Possible value for c (5.0).  */
> +/* { dg-final { scan-assembler-not {\t.word\t1\n} } } */ /* 'true' mask.  */
> +/* { dg-final { scan-assembler-not {\t.word\t0\n} } } */ /* 'false' mask.  */
> diff --git a/gcc/testsuite/gcc.target/arm/simd/pr100757-4.c
> b/gcc/testsuite/gcc.target/arm/simd/pr100757-4.c
> new file mode 100644
> index 00000000000..c12040c517f
> --- /dev/null
> +++ b/gcc/testsuite/gcc.target/arm/simd/pr100757-4.c
> @@ -0,0 +1,19 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target arm_v8_1m_mve_ok } */
> +/* { dg-add-options arm_v8_1m_mve } */
> +/* { dg-additional-options "-O3" } */
> +/* Derived from gcc.c-torture/compile/20160205-1.c.  */
> +
> +unsigned int a[32];
> +int fn1(int d) {
> +  int c = 2;
> +  for (int b = 0; b < 32; b++)
> +    if (a[b])
> +      c = 3;
> +  return c;
> +}
> +
> +/* { dg-final { scan-assembler-times {\t.word\t0\n} 4 } } */ /* 'false' mask.
> */
> +/* { dg-final { scan-assembler-not {\t.word\t1\n} } } */ /* 'true' mask.  */
> +/* { dg-final { scan-assembler-times {\t.word\t2\n} 4 } } */ /* Initial value
> for c.  */
> +/* { dg-final { scan-assembler-times {\t.word\t3\n} 4 } } */ /* Possible
> value for c.  */
> diff --git a/gcc/testsuite/gcc.target/arm/simd/pr100757.c
> b/gcc/testsuite/gcc.target/arm/simd/pr100757.c
> new file mode 100644
> index 00000000000..41d6e4e2d7a
> --- /dev/null
> +++ b/gcc/testsuite/gcc.target/arm/simd/pr100757.c
> @@ -0,0 +1,19 @@
> +/* { dg-do compile } */
> +/* { dg-require-effective-target arm_v8_1m_mve_ok } */
> +/* { dg-add-options arm_v8_1m_mve } */
> +/* { dg-additional-options "-O3" } */
> +/* Derived from gcc.c-torture/compile/20160205-1.c.  */
> +
> +int a[32];
> +int fn1(int d) {
> +  int c = 2;
> +  for (int b = 0; b < 32; b++)
> +    if (a[b])
> +      c = 3;
> +  return c;
> +}
> +
> +/* { dg-final { scan-assembler-times {\t.word\t0\n} 4 } } */ /* 'false' mask.
> */
> +/* { dg-final { scan-assembler-not {\t.word\t1\n} } } */ /* 'true' mask.  */
> +/* { dg-final { scan-assembler-times {\t.word\t2\n} 4 } } */ /* Initial value
> for c.  */
> +/* { dg-final { scan-assembler-times {\t.word\t3\n} 4 } } */ /* Possible
> value for c.  */
> --
> 2.25.1