Hexagon: Remove duplicate instructions to handle global/immediate values

for absolute/absolute-set addressing modes.

llvm-svn: 180120

1 files changed, 18 insertions, 0 deletions

diff --git a/llvm/test/CodeGen/Hexagon/absimm.ll b/llvm/test/CodeGen/Hexagon/absimm.ll
new file mode 100644
index 00000000000..b8f5edc2647
--- /dev/null
+++ b/llvm/test/CodeGen/Hexagon/absimm.ll
@@ -0,0 +1,18 @@
+; RUN: llc -march=hexagon -mcpu=hexagonv4 < %s | FileCheck %s
+; Check that we generate absolute addressing mode instructions
+; with immediate value.
+
+define i32 @f1(i32 %i) nounwind {
+; CHECK: memw(##786432){{ *}}={{ *}}r{{[0-9]+}}
+entry:
+  store volatile i32 %i, i32* inttoptr (i32 786432 to i32*), align 262144
+  ret i32 %i
+}
+
+define i32* @f2(i32* nocapture %i) nounwind {
+entry:
+; CHECK: r{{[0-9]+}}{{ *}}={{ *}}memw(##786432)
+  %0 = load volatile i32* inttoptr (i32 786432 to i32*), align 262144
+  %1 = inttoptr i32 %0 to i32*
+  ret i32* %1
+  }