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* [gcc r11-6862] Testcase for old PR 47059
@ 2021-01-22 17:11 Martin Jambor
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From: Martin Jambor @ 2021-01-22 17:11 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:d7e681fc3afff24a6279058cbb0b0dc4cd96be8c
commit r11-6862-gd7e681fc3afff24a6279058cbb0b0dc4cd96be8c
Author: Martin Jambor <mjambor@suse.cz>
Date: Fri Jan 22 18:09:38 2021 +0100
Testcase for old PR 47059
I stumbled across PR 47059 from 2010 which has been addressed by
store-merging. I am going to close it but would like to add its
testcase too.
gcc/testsuite/ChangeLog:
2021-01-08 Martin Jambor <mjambor@suse.cz>
PR tree-optimization/47059
* gcc.dg/tree-ssa/pr47059.c: New test.
Diff:
---
gcc/testsuite/gcc.dg/tree-ssa/pr47059.c | 45 +++++++++++++++++++++++++++++++++
1 file changed, 45 insertions(+)
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/pr47059.c b/gcc/testsuite/gcc.dg/tree-ssa/pr47059.c
new file mode 100644
index 00000000000..9f9c61aa213
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/pr47059.c
@@ -0,0 +1,45 @@
+/* { dg-do compile } */
+/* { dg-options "-Os -fdump-tree-optimized" } */
+
+
+struct struct1
+{
+ void *data;
+ unsigned short f1;
+ unsigned short f2;
+};
+typedef struct struct1 S1;
+
+struct struct2
+{
+ int f3;
+ S1 f4;
+};
+typedef struct struct2 S2;
+
+
+extern void foo (S1 *ptr);
+extern S2 gstruct2_var;
+extern S1 gstruct1_var;
+
+static inline S1 bar (const S1 *ptr) __attribute__ ((always_inline));
+
+static inline S1
+bar (const S1 *ptr)
+{
+ S1 ls_var = *ptr;
+ foo (&ls_var);
+ return ls_var;
+}
+
+int
+main ()
+{
+ S2 *ps_var;
+
+ ps_var = &gstruct2_var;
+ ps_var->f4 = bar (&gstruct1_var);
+
+ return 0;
+}
+/* { dg-final { scan-tree-dump-times "short unsigned int\[^*\]*;" 0 "optimized"} } */
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