Support for target dependent Hexagon VLIW packetizer.

This patch creates and optimizes packets as per Hexagon ISA rules.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156109 91177308-0d34-0410-b5e6-96231b3b80d8

4 files changed, 69 insertions, 0 deletions

diff --git a/test/CodeGen/Hexagon/dualstore.ll b/test/CodeGen/Hexagon/dualstore.ll
new file mode 100644
index 0000000000..9b27dda52c
--- /dev/null
+++ b/test/CodeGen/Hexagon/dualstore.ll
@@ -0,0 +1,17 @@
+; RUN: llc -march=hexagon -mcpu=hexagonv4 < %s | FileCheck %s
+; Check that we generate dual stores in one packet in V4
+
+; CHECK: memw(r{{[0-9]+}} + #{{[0-9]+}}) = r{{[0-9]+}}
+; CHECK-NEXT: memw(r{{[0-9]+}} + #{{[0-9]+}}) = r{{[0-9]+}}
+; CHECK-NEXT: }
+
+@Reg = global i32 0, align 4
+define i32 @main() nounwind {
+entry:
+  %number= alloca i32, align 4
+  store i32 500000, i32* %number, align 4
+  %number1= alloca i32, align 4
+  store i32 100000, i32* %number1, align 4
+  ret i32 0
+}
+
diff --git a/test/CodeGen/Hexagon/fusedandshift.ll b/test/CodeGen/Hexagon/fusedandshift.ll
new file mode 100644
index 0000000000..022b3c6734
--- /dev/null
+++ b/test/CodeGen/Hexagon/fusedandshift.ll
@@ -0,0 +1,16 @@
+; RUN: llc -march=hexagon -mcpu=hexagonv4  < %s | FileCheck %s
+; Check that we generate fused logical and with shift instruction.
+
+; CHECK: r{{[0-9]+}} = and(#15, lsr(r{{[0-9]+}}, #{{[0-9]+}})
+
+define i32 @main(i16* %a, i16* %b) nounwind {
+  entry:
+  %0 = load i16* %a, align 2
+  %conv1 = sext i16 %0 to i32
+  %shr1 = ashr i32 %conv1, 3
+  %and1 = and i32 %shr1, 15
+  %conv2 = trunc i32 %and1 to i16
+  store i16 %conv2, i16* %b, align 2
+  ret i32 0
+}
+
diff --git a/test/CodeGen/Hexagon/macint.ll b/test/CodeGen/Hexagon/macint.ll
new file mode 100644
index 0000000000..b3b9d0ee7a
--- /dev/null
+++ b/test/CodeGen/Hexagon/macint.ll
@@ -0,0 +1,14 @@
+; RUN: llc -march=hexagon -mcpu=hexagonv4  < %s | FileCheck %s
+; Check that we generate integer multiply accumulate.
+
+; CHECK: r{{[0-9]+}} += mpyi(r{{[0-9]+}}, r{{[0-9]+}})
+
+define i32 @main(i32* %a, i32* %b) nounwind {
+  entry:
+  %0 = load i32* %a, align 4
+  %div = udiv i32 %0, 10000
+  %rem = urem i32 %div, 10
+  store i32 %rem, i32* %b, align 4
+  ret i32 0
+}
+
diff --git a/test/CodeGen/Hexagon/newvaluestore.ll b/test/CodeGen/Hexagon/newvaluestore.ll
new file mode 100644
index 0000000000..ab69b22df5
--- /dev/null
+++ b/test/CodeGen/Hexagon/newvaluestore.ll
@@ -0,0 +1,22 @@
+; RUN: llc -march=hexagon -mcpu=hexagonv4  < %s | FileCheck %s
+; Check that we generate new value store packet in V4
+
+@i = global i32 0, align 4
+@j = global i32 10, align 4
+@k = global i32 100, align 4
+
+define i32 @main() nounwind {
+entry:
+; CHECK: memw(r{{[0-9]+}} + #{{[0-9]+}}) = r{{[0-9]+}}.new
+  %number1 = alloca i32, align 4
+  %number2 = alloca i32, align 4
+  %number3 = alloca i32, align 4
+  %0 = load i32 * @i, align 4
+  store i32 %0, i32* %number1, align 4
+  %1 = load i32 * @j, align 4
+  store i32 %1, i32* %number2, align 4
+  %2 = load i32 * @k, align 4
+  store i32 %2, i32* %number3, align 4
+  ret i32 %0
+}
+