1 files changed, 15 insertions, 0 deletions
diff --git a/test/CodeGen/Hexagon/opt-fabs.ll b/test/CodeGen/Hexagon/opt-fabs.ll
new file mode 100644
index 0000000..31b56fd
--- /dev/null
+++ b/test/CodeGen/Hexagon/opt-fabs.ll
@@ -0,0 +1,15 @@
+; RUN: llc -mtriple=hexagon-unknown-elf -mcpu=hexagonv5  < %s | FileCheck %s
+; Optimize fabsf to clrbit in V5.
+
+; CHECK: r{{[0-9]+}} = clrbit(r{{[0-9]+}}, #31)
+
+define float @my_fabsf(float %x) nounwind {
+entry:
+  %x.addr = alloca float, align 4
+  store float %x, float* %x.addr, align 4
+  %0 = load float* %x.addr, align 4
+  %call = call float @fabsf(float %0) readnone
+  ret float %call
+}
+
+declare float @fabsf(float)