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diff gcc/testsuite/gcc.dg/tm/memopt-4.c @ 111:04ced10e8804

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gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/gcc.dg/tm/memopt-4.c	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,24 @@
+/* { dg-do compile } */
+/* { dg-options "-fgnu-tm -O -fdump-tree-tmedge" } */
+
+/* Test thread-local memory optimizations: save/restore pairs.  */
+
+struct large { int x[100]; };
+struct large bark();
+extern int test (void) __attribute__((transaction_safe));
+extern int readint (void);
+
+int f()
+{
+  int i = readint();
+  struct large lala = bark();
+  __transaction_atomic {
+    lala.x[55] = 666;
+    if (test())
+      __transaction_cancel;
+  }
+  return lala.x[i];
+}
+
+/* { dg-final { scan-tree-dump-times "tm_save.\[0-9_\]+ = lala.x\\\[55\\\]" 1 "tmedge" } } */
+/* { dg-final { scan-tree-dump-times "lala.x\\\[55\\\] = tm_save" 1 "tmedge" } } */