Hexagon: Fix Small Data support to handle -G 0 correctly.

llvm-svn: 181331

1 files changed, 26 insertions, 0 deletions

diff --git a/llvm/test/CodeGen/Hexagon/split-const32-const64.ll b/llvm/test/CodeGen/Hexagon/split-const32-const64.ll
new file mode 100644
index 00000000000..2815253545c
--- /dev/null
+++ b/llvm/test/CodeGen/Hexagon/split-const32-const64.ll
@@ -0,0 +1,26 @@
+; RUN: llc -march=hexagon -mcpu=hexagonv5 -hexagon-small-data-threshold=0 < %s | FileCheck %s
+
+; Check that CONST32/CONST64 instructions are 'not' generated when
+; small-data-threshold is set to 0.
+
+; with immediate value.
+@a = external global i32
+@b = external global i32
+@la = external global i64
+@lb = external global i64
+
+define void @test1() nounwind {
+; CHECK-NOT: CONST32 
+entry:
+  store i32 12345670, i32* @a, align 4
+  store i32 12345670, i32* @b, align 4
+  ret void
+}
+
+define void @test2() nounwind {
+; CHECK-NOT: CONST64
+entry:
+  store i64 1234567890123, i64* @la, align 8
+  store i64 1234567890123, i64* @lb, align 8
+  ret void
+}