vendor/llvm/llvm-trunk-r178860

1 files changed, 17 insertions, 0 deletions

diff --git a/test/CodeGen/AArch64/fp128-folding.ll b/test/CodeGen/AArch64/fp128-folding.ll
new file mode 100644
index 000000000000..b5bdcf4f37b4
--- /dev/null
+++ b/test/CodeGen/AArch64/fp128-folding.ll
@@ -0,0 +1,17 @@
+; RUN: llc -mtriple=aarch64-none-linux-gnu -verify-machineinstrs < %s | FileCheck %s
+declare void @bar(i8*, i8*, i32*)
+
+; SelectionDAG used to try to fold some fp128 operations using the ppc128 type,
+; which is not supported.
+
+define fp128 @test_folding() {
+; CHECK: test_folding:
+  %l = alloca i32
+  store i32 42, i32* %l
+  %val = load i32* %l
+  %fpval = sitofp i32 %val to fp128
+  ; If the value is loaded from a constant pool into an fp128, it's been folded
+  ; successfully.
+; CHECK: ldr {{q[0-9]+}}, [{{x[0-9]+}}, #:lo12:.LCPI
+  ret fp128 %fpval
+}
\ No newline at end of file