[Hexagon] Add code to select QTRUE and QFALSE

Fixes http://llvm.org/PR36320.

llvm-svn: 324763

1 files changed, 29 insertions, 0 deletions

diff --git a/llvm/test/CodeGen/Hexagon/autohvx/isel-qfalse.ll b/llvm/test/CodeGen/Hexagon/autohvx/isel-qfalse.ll
new file mode 100644
index 00000000000..b0cf12cd427
--- /dev/null
+++ b/llvm/test/CodeGen/Hexagon/autohvx/isel-qfalse.ll
@@ -0,0 +1,29 @@
+; RUN: llc -march=hexagon < %s | FileCheck %s
+  
+; Make sure we can select QFALSE.
+; CHECK: vcmp.gt(v0.w,v0.w)
+
+target datalayout = "e-m:e-p:32:32:32-a:0-n16:32-i64:64:64-i32:32:32-i16:16:16-i1:8:8-f32:32:32-f64:64:64-v32:32:32-v64:64:64-v512:512:512-v1024:1024:1024-v2048:2048:2048"
+target triple = "hexagon"
+
+; Function Attrs: nounwind
+define hidden fastcc void @fred(i32 %a0) #0 {
+b1:
+  %v2 = insertelement <32 x i32> undef, i32 %a0, i32 0
+  %v3 = shufflevector <32 x i32> %v2, <32 x i32> undef, <32 x i32> zeroinitializer
+  %v4 = icmp eq <32 x i32> %v3, undef
+  %v5 = and <32 x i1> zeroinitializer, %v4
+  br label %b6
+
+b6:                                               ; preds = %b1
+  %v7 = extractelement <32 x i1> %v5, i32 22
+  br i1 %v7, label %b8, label %b9
+
+b8:                                               ; preds = %b6
+  unreachable
+
+b9:                                               ; preds = %b6
+  unreachable
+}
+
+attributes #0 = { nounwind "target-cpu"="hexagonv60" "target-features"="+hvx,+hvx-length64b" }