[AVR] Add a selection of CodeGen tests

Summary: This adds all of the CodeGen tests which currently pass.

Reviewers: arsenm, kparzysz

Subscribers: japaric, wdng

Differential Revision: https://reviews.llvm.org/D26388

llvm-svn: 286418

1 files changed, 23 insertions, 0 deletions

diff --git a/llvm/test/CodeGen/AVR/runtime-trig.ll b/llvm/test/CodeGen/AVR/runtime-trig.ll
new file mode 100644
index 00000000000..2673dd39576
--- /dev/null
+++ b/llvm/test/CodeGen/AVR/runtime-trig.ll
@@ -0,0 +1,23 @@
+; RUN: llc < %s -march=avr | FileCheck %s
+
+; Checks that `sin` and `cos` nodes are expanded into calls to
+; the `sin` and `cos` runtime library functions.
+; On AVR, the only floats supported are 32-bits, and so the
+; function names have no `f` or `d` suffix.
+
+declare float @llvm.sin.f32(float %x)
+declare float @llvm.cos.f32(float %x)
+
+define float @do_sin(float %a) {
+; CHECK-LABEL: do_sin:
+; CHECK: {{sin$}}
+    %result = call float @llvm.sin.f32(float %a)
+    ret float %result
+}
+
+; CHECK-LABEL: do_cos:
+; CHECK: {{cos$}}
+define float @do_cos(float %a) {
+    %result = call float @llvm.cos.f32(float %a)
+    ret float %result
+}