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authorBob Wilson <bob.wilson@apple.com>2010-06-11 22:45:25 +0000
committerBob Wilson <bob.wilson@apple.com>2010-06-11 22:45:25 +0000
commit1114f568bc35cf13064c864df44194630449bec5 (patch)
tree0e27e4bf22dc19239d1143165d152f1e690e6e32 /test/CodeGen/ARM/2010-06-11-vmovdrr-bitcast.ll
parent9a56c328b13b27c44a12e288aee035554ee28494 (diff)
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Add a missing bitcast. This code used to only handle conversions between
i64 and f64 types, but now it also handle Neon vector types, so the f64 result of VMOVDRR may need to be converted to a Neon type. Radar 8084742. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105845 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/ARM/2010-06-11-vmovdrr-bitcast.ll')
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1 files changed, 19 insertions, 0 deletions
diff --git a/test/CodeGen/ARM/2010-06-11-vmovdrr-bitcast.ll b/test/CodeGen/ARM/2010-06-11-vmovdrr-bitcast.ll
new file mode 100644
index 0000000..7519ca7
--- /dev/null
+++ b/test/CodeGen/ARM/2010-06-11-vmovdrr-bitcast.ll
@@ -0,0 +1,19 @@
+; RUN: llc < %s -march=arm -mattr=+neon
+; Radar 8084742
+
+%struct.__int8x8x2_t = type { [2 x <8 x i8>] }
+
+define arm_apcscc void @foo(%struct.__int8x8x2_t* nocapture %a, i8* %b) nounwind {
+entry:
+ %0 = bitcast %struct.__int8x8x2_t* %a to i128* ; <i128*> [#uses=1]
+ %srcval = load i128* %0, align 8 ; <i128> [#uses=2]
+ %tmp6 = trunc i128 %srcval to i64 ; <i64> [#uses=1]
+ %tmp8 = lshr i128 %srcval, 64 ; <i128> [#uses=1]
+ %tmp9 = trunc i128 %tmp8 to i64 ; <i64> [#uses=1]
+ %tmp16.i = bitcast i64 %tmp6 to <8 x i8> ; <<8 x i8>> [#uses=1]
+ %tmp20.i = bitcast i64 %tmp9 to <8 x i8> ; <<8 x i8>> [#uses=1]
+ tail call void @llvm.arm.neon.vst2.v8i8(i8* %b, <8 x i8> %tmp16.i, <8 x i8> %tmp20.i) nounwind
+ ret void
+}
+
+declare void @llvm.arm.neon.vst2.v8i8(i8*, <8 x i8>, <8 x i8>) nounwind