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-rw-r--r--test/CodeGen/Hexagon/vect/vect-truncate.ll42
1 files changed, 42 insertions, 0 deletions
diff --git a/test/CodeGen/Hexagon/vect/vect-truncate.ll b/test/CodeGen/Hexagon/vect/vect-truncate.ll
new file mode 100644
index 0000000..fd75bbd
--- /dev/null
+++ b/test/CodeGen/Hexagon/vect/vect-truncate.ll
@@ -0,0 +1,42 @@
+; RUN: llc -march=hexagon < %s
+; Used to fail with "Cannot select: 0x16cb7f0: v2i16 = truncate"
+
+; ModuleID = 'bugpoint-reduced-simplified.bc'
+target datalayout = "e-p:32:32:32-i64:64:64-i32:32:32-i16:16:16-i1:32:32-f64:64:64-f32:32:32-a0:0-n32"
+target triple = "hexagon-unknown-linux-gnu"
+
+define void @Autocorr() nounwind {
+entry:
+ br label %for.body
+
+for.body: ; preds = %for.body, %entry
+ br i1 undef, label %polly.loop_header43, label %for.body
+
+do.cond: ; preds = %polly.loop_header
+ unreachable
+
+do.end: ; preds = %polly.loop_after45
+ ret void
+
+polly.loop_header: ; preds = %polly.loop_after45, %polly.loop_body
+ %0 = icmp sle i32 undef, 239
+ br i1 %0, label %polly.loop_body, label %do.cond
+
+polly.loop_body: ; preds = %polly.loop_header
+ %p_25 = call i32 @llvm.hexagon.SI.to.SXTHI.asrh(i32 undef)
+ %1 = insertelement <4 x i32> undef, i32 %p_25, i32 3
+ %2 = trunc <4 x i32> %1 to <4 x i16>
+ store <4 x i16> %2, <4 x i16>* undef, align 8
+ br label %polly.loop_header
+
+polly.loop_after45: ; preds = %polly.loop_header43
+ br i1 undef, label %polly.loop_header, label %do.end
+
+polly.loop_header43: ; preds = %polly.loop_body44, %for.body
+ br i1 undef, label %polly.loop_body44, label %polly.loop_after45
+
+polly.loop_body44: ; preds = %polly.loop_header43
+ br label %polly.loop_header43
+}
+
+declare i32 @llvm.hexagon.SI.to.SXTHI.asrh(i32) nounwind readnone