From: Matthias Braun <matze@braunis.de>
Date: Tue, 22 Jan 2008 10:25:45 +0000 (+0000)
Subject: yet another spill harness (by the llvm master _sabre_ himself)
X-Git-Url: http://nsz.repo.hu/git/?a=commitdiff_plain;h=11582f73ba57d74e58cf6d61e2950678d45aff18;p=libfirm

yet another spill harness (by the llvm master _sabre_ himself)

[r17487]
---

diff --git a/ir/be/test/codegen/spillharness2.c b/ir/be/test/codegen/spillharness2.c
new file mode 100644
index 000000000..50b19e23e
--- /dev/null
+++ b/ir/be/test/codegen/spillharness2.c
@@ -0,0 +1,40 @@
+void f(int);
+
+volatile int G1, G2, G3, G4, G5;
+
+volatile int VG;
+
+void test()
+{
+	int foo = rand();
+
+        // spill foo.
+	int t1 = G1;
+	int t2 = G2;
+	int t3 = G3;
+	int t4 = G4;
+	int t5 = G5;
+
+	int bar = rand();
+	int i;
+
+	G1 = t1; G2 = t2; G3 = t3; G4 = t4; G5 = t5;
+	G1 = t1; G2 = t2; G3 = t3; G4 = t4; G5 = t5;
+	G1 = t1; G2 = t2; G3 = t3; G4 = t4; G5 = t5;
+
+	i = 10000;
+	while (i--) {
+		VG = foo;  // really keep foo in a reg.
+		f(bar);   // bar live
+		G1 = t1;
+		VG = foo;
+		G2 = t2;
+		VG = foo;
+		G3 = t3;
+		VG = foo;
+		G4 = t4;
+		VG = foo;
+		G5 = t5;
+
+	}
+}