Hexagon: Add support for lowering block address.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176508 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 78 insertions, 0 deletions

diff --git a/test/CodeGen/Hexagon/block-addr.ll b/test/CodeGen/Hexagon/block-addr.ll
new file mode 100644
index 0000000000..54a12bf484
--- /dev/null
+++ b/test/CodeGen/Hexagon/block-addr.ll
@@ -0,0 +1,64 @@
+; RUN: llc -march=hexagon < %s | FileCheck %s
+
+; CHECK: r{{[0-9]+}} = CONST32(#.LJTI{{[0-9]+_[0-9]+}})
+; CHECK: r{{[0-9]+}} = memw(r{{[0-9]+}}+r{{[0-9]+<<#[0-9]+}})
+; CHECK: jumpr r{{[0-9]+}}
+
+define void @main() #0 {
+entry:
+  %ret = alloca i32, align 4
+  br label %while.body
+
+while.body:
+  %ret.0.load17 = load volatile i32* %ret, align 4
+  switch i32 %ret.0.load17, label %label6 [
+    i32 0, label %label0
+    i32 1, label %label1
+    i32 2, label %label2
+    i32 3, label %label3
+    i32 4, label %label4
+    i32 5, label %label5
+  ]
+
+label0:
+  %ret.0.load18 = load volatile i32* %ret, align 4
+  %inc = add nsw i32 %ret.0.load18, 1
+  store volatile i32 %inc, i32* %ret, align 4
+  br label %while.body
+
+label1:
+  %ret.0.load19 = load volatile i32* %ret, align 4
+  %inc2 = add nsw i32 %ret.0.load19, 1
+  store volatile i32 %inc2, i32* %ret, align 4
+  br label %while.body
+
+label2:
+  %ret.0.load20 = load volatile i32* %ret, align 4
+  %inc4 = add nsw i32 %ret.0.load20, 1
+  store volatile i32 %inc4, i32* %ret, align 4
+  br label %while.body
+
+label3:
+  %ret.0.load21 = load volatile i32* %ret, align 4
+  %inc6 = add nsw i32 %ret.0.load21, 1
+  store volatile i32 %inc6, i32* %ret, align 4
+  br label %while.body
+
+label4:
+  %ret.0.load22 = load volatile i32* %ret, align 4
+  %inc8 = add nsw i32 %ret.0.load22, 1
+  store volatile i32 %inc8, i32* %ret, align 4
+  br label %while.body
+
+label5:
+  %ret.0.load23 = load volatile i32* %ret, align 4
+  %inc10 = add nsw i32 %ret.0.load23, 1
+  store volatile i32 %inc10, i32* %ret, align 4
+  br label %while.body
+
+label6:
+  store volatile i32 0, i32* %ret, align 4
+  br label %while.body
+}
+
+attributes #0 = { noreturn nounwind "target-cpu"="hexagonv4" }
diff --git a/test/CodeGen/Hexagon/indirect-br.ll b/test/CodeGen/Hexagon/indirect-br.ll
new file mode 100644
index 0000000000..919e501891
--- /dev/null
+++ b/test/CodeGen/Hexagon/indirect-br.ll
@@ -0,0 +1,14 @@
+; RUN: llc -march=hexagon < %s | FileCheck %s
+
+;CHECK: jumpr  r{{[0-9]+}}
+
+define i32 @check_indirect_br(i8* %target) nounwind {
+entry:
+        indirectbr i8* %target, [label %test_label]
+
+test_label:
+        br label %ret
+
+ret:
+        ret i32 -1
+}
\ No newline at end of file