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-rw-r--r--llvm/test/CodeGen/ARM/2012-01-24-RegSequenceLiveRange.ll43
1 files changed, 43 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/ARM/2012-01-24-RegSequenceLiveRange.ll b/llvm/test/CodeGen/ARM/2012-01-24-RegSequenceLiveRange.ll
new file mode 100644
index 00000000000..faf65b60be8
--- /dev/null
+++ b/llvm/test/CodeGen/ARM/2012-01-24-RegSequenceLiveRange.ll
@@ -0,0 +1,43 @@
+; RUN: llc < %s -mcpu=cortex-a8 -verify-machineinstrs -verify-coalescing
+; PR11841
+target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:64:128-a0:0:64-n32-S64"
+target triple = "armv7-none-linux-eabi"
+
+; This test case is exercising REG_SEQUENCE, and chains of REG_SEQUENCE.
+define arm_aapcs_vfpcc void @foo(i8* nocapture %arg, i8* %arg1) nounwind align 2 {
+bb:
+ %tmp = load <2 x float>* undef, align 8, !tbaa !0
+ %tmp2 = extractelement <2 x float> %tmp, i32 0
+ %tmp3 = insertelement <4 x float> undef, float %tmp2, i32 0
+ %tmp4 = insertelement <4 x float> %tmp3, float 0.000000e+00, i32 1
+ %tmp5 = insertelement <4 x float> %tmp4, float 0.000000e+00, i32 2
+ %tmp6 = insertelement <4 x float> %tmp5, float 0.000000e+00, i32 3
+ %tmp7 = extractelement <2 x float> %tmp, i32 1
+ %tmp8 = insertelement <4 x float> %tmp3, float %tmp7, i32 1
+ %tmp9 = insertelement <4 x float> %tmp8, float 0.000000e+00, i32 2
+ %tmp10 = insertelement <4 x float> %tmp9, float 0.000000e+00, i32 3
+ %tmp11 = bitcast <4 x float> %tmp6 to <2 x i64>
+ %tmp12 = shufflevector <2 x i64> %tmp11, <2 x i64> undef, <1 x i32> zeroinitializer
+ %tmp13 = bitcast <1 x i64> %tmp12 to <2 x float>
+ %tmp14 = shufflevector <2 x float> %tmp13, <2 x float> undef, <4 x i32> zeroinitializer
+ %tmp15 = bitcast <4 x float> %tmp14 to <2 x i64>
+ %tmp16 = shufflevector <2 x i64> %tmp15, <2 x i64> undef, <1 x i32> zeroinitializer
+ %tmp17 = bitcast <1 x i64> %tmp16 to <2 x float>
+ %tmp18 = extractelement <2 x float> %tmp17, i32 0
+ tail call arm_aapcs_vfpcc void @bar(i8* undef, float %tmp18, float undef, float 0.000000e+00) nounwind
+ %tmp19 = bitcast <4 x float> %tmp10 to <2 x i64>
+ %tmp20 = shufflevector <2 x i64> %tmp19, <2 x i64> undef, <1 x i32> zeroinitializer
+ %tmp21 = bitcast <1 x i64> %tmp20 to <2 x float>
+ %tmp22 = shufflevector <2 x float> %tmp21, <2 x float> undef, <4 x i32> <i32 1, i32 1, i32 1, i32 1>
+ %tmp23 = bitcast <4 x float> %tmp22 to <2 x i64>
+ %tmp24 = shufflevector <2 x i64> %tmp23, <2 x i64> undef, <1 x i32> zeroinitializer
+ %tmp25 = bitcast <1 x i64> %tmp24 to <2 x float>
+ %tmp26 = extractelement <2 x float> %tmp25, i32 0
+ tail call arm_aapcs_vfpcc void @bar(i8* undef, float undef, float %tmp26, float 0.000000e+00) nounwind
+ ret void
+}
+
+declare arm_aapcs_vfpcc void @bar(i8*, float, float, float)
+
+!0 = metadata !{metadata !"omnipotent char", metadata !1}
+!1 = metadata !{metadata !"Simple C/C++ TBAA", null}
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