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[committed] Handle POLY_INT_CST in copy_reference_ops_from_ref
- From: Richard Sandiford <richard dot sandiford at arm dot com>
- To: gcc-patches at gcc dot gnu dot org
- Cc: szabolcs dot nagy at arm dot com
- Date: Fri, 08 Nov 2019 09:44:49 +0000
- Subject: [committed] Handle POLY_INT_CST in copy_reference_ops_from_ref
Tested on aarch64-linux-gnu and x86_64-linux-gnu. Applied as obvious.
Richard
2019-11-08 Richard Sandiford <richard.sandiford@arm.com>
gcc/
* tree-ssa-sccvn.c (copy_reference_ops_from_ref): Handle
POLY_INT_CST.
gcc/testsuite/
* gcc.target/aarch64/sve/acle/general/deref_2.c: New test.
* gcc.target/aarch64/sve/acle/general/whilele_8.c: Likewise.
* gcc.target/aarch64/sve/acle/general/whilelt_4.c: Likewise.
Index: gcc/tree-ssa-sccvn.c
===================================================================
--- gcc/tree-ssa-sccvn.c 2019-10-31 17:15:21.594544316 +0000
+++ gcc/tree-ssa-sccvn.c 2019-11-08 09:43:07.927488162 +0000
@@ -928,6 +928,7 @@ copy_reference_ops_from_ref (tree ref, v
break;
case STRING_CST:
case INTEGER_CST:
+ case POLY_INT_CST:
case COMPLEX_CST:
case VECTOR_CST:
case REAL_CST:
Index: gcc/testsuite/gcc.target/aarch64/sve/acle/general/deref_2.c
===================================================================
--- /dev/null 2019-09-17 11:41:18.176664108 +0100
+++ gcc/testsuite/gcc.target/aarch64/sve/acle/general/deref_2.c 2019-11-08 09:43:07.927488162 +0000
@@ -0,0 +1,20 @@
+/* { dg-options "-O2" } */
+
+#include <arm_sve.h>
+#include <string.h>
+
+inline void
+copy (void *dst, svbool_t src)
+{
+ memcpy (dst, &src, svcntd ());
+}
+
+uint64_t
+f (int32_t *x, int32_t *y)
+{
+ union { uint64_t x; char c[8]; } u;
+ svbool_t pg = svptrue_b32 ();
+ copy (u.c, svcmpeq (pg, svld1 (pg, x), 0));
+ copy (u.c + 4, svcmpeq (pg, svld1 (pg, y), 1));
+ return u.x;
+}
Index: gcc/testsuite/gcc.target/aarch64/sve/acle/general/whilele_8.c
===================================================================
--- /dev/null 2019-09-17 11:41:18.176664108 +0100
+++ gcc/testsuite/gcc.target/aarch64/sve/acle/general/whilele_8.c 2019-11-08 09:43:07.927488162 +0000
@@ -0,0 +1,33 @@
+/* { dg-do compile } */
+/* { dg-options "-O2" } */
+
+#include <arm_sve.h>
+
+/* { dg-final { scan-assembler-not {\tptrue\t} } } */
+/* { dg-final { scan-assembler-not {\tpfalse\t} } } */
+
+void
+test1 (svbool_t *ptr)
+{
+ *ptr = svwhilele_b32_s32 (-4, 0);
+}
+
+void
+test2 (svbool_t *ptr)
+{
+ *ptr = svwhilele_b16_s64 (svcntb (), svcntb () + 8);
+}
+
+void
+test3 (svbool_t *ptr)
+{
+ *ptr = svwhilele_b64_s32 (0, 2);
+}
+
+void
+test4 (svbool_t *ptr)
+{
+ *ptr = svwhilele_b8_s64 (16, svcntb ());
+}
+
+/* { dg-final { scan-assembler-times {\twhilel[et]\t} 4 } } */
Index: gcc/testsuite/gcc.target/aarch64/sve/acle/general/whilelt_4.c
===================================================================
--- /dev/null 2019-09-17 11:41:18.176664108 +0100
+++ gcc/testsuite/gcc.target/aarch64/sve/acle/general/whilelt_4.c 2019-11-08 09:43:07.927488162 +0000
@@ -0,0 +1,33 @@
+/* { dg-do compile } */
+/* { dg-options "-O2" } */
+
+#include <arm_sve.h>
+
+/* { dg-final { scan-assembler-not {\tptrue\t} } } */
+/* { dg-final { scan-assembler-not {\tpfalse\t} } } */
+
+void
+test1 (svbool_t *ptr)
+{
+ *ptr = svwhilelt_b32_s32 (-4, 1);
+}
+
+void
+test2 (svbool_t *ptr)
+{
+ *ptr = svwhilelt_b16_s64 (svcntb (), svcntb () + 9);
+}
+
+void
+test3 (svbool_t *ptr)
+{
+ *ptr = svwhilelt_b64_s32 (0, 3);
+}
+
+void
+test4 (svbool_t *ptr)
+{
+ *ptr = svwhilelt_b8_s64 (16, svcntb ());
+}
+
+/* { dg-final { scan-assembler-times {\twhilel[et]\t} 4 } } */