Remove 'llvm.x86.avx2.vbroadcasti128' intrinsic.

The intrinsic is no longer generated by the front-end. Remove the intrinsic and
auto-upgrade it to a vector shuffle.

Reviewed by Nadav

This is related to rdar://problem/18742778.

llvm-svn: 231182

2 files changed, 18 insertions, 7 deletions

diff --git a/llvm/test/CodeGen/X86/avx2-intrinsics-x86.ll b/llvm/test/CodeGen/X86/avx2-intrinsics-x86.ll
index da0f17a88de..b7e2b7412ff 100644
--- a/llvm/test/CodeGen/X86/avx2-intrinsics-x86.ll
+++ b/llvm/test/CodeGen/X86/avx2-intrinsics-x86.ll
@@ -641,13 +641,6 @@ define <4 x i64> @test_x86_avx2_pmul.dq(<8 x i32> %a0, <8 x i32> %a1) {
 declare <4 x i64> @llvm.x86.avx2.pmul.dq(<8 x i32>, <8 x i32>) nounwind readnone
 
 
-define <4 x i64> @test_x86_avx2_vbroadcasti128(i8* %a0) {
-  ; CHECK: vbroadcasti128
-  %res = call <4 x i64> @llvm.x86.avx2.vbroadcasti128(i8* %a0) ; <<4 x i64>> [#uses=1]
-  ret <4 x i64> %res
-}
-declare <4 x i64> @llvm.x86.avx2.vbroadcasti128(i8*) nounwind readonly
-
 define <4 x double> @test_x86_avx2_vbroadcast_sd_pd_256(<2 x double> %a0) {
   ; CHECK: vbroadcastsd
   %res = call <4 x double> @llvm.x86.avx2.vbroadcast.sd.pd.256(<2 x double> %a0) ; <<4 x double>> [#uses=1]
diff --git a/llvm/test/CodeGen/X86/x86-upgrade-avx2-vbroadcast.ll b/llvm/test/CodeGen/X86/x86-upgrade-avx2-vbroadcast.ll
new file mode 100644
index 00000000000..08571f51478
--- /dev/null
+++ b/llvm/test/CodeGen/X86/x86-upgrade-avx2-vbroadcast.ll
@@ -0,0 +1,18 @@
+; RUN: llc -mattr=+avx2 < %s | FileCheck %s
+
+; Check that we properly upgrade the AVX2 vbroadcast intrinsic to IR.
+
+target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-apple-macosx10.10.0"
+
+define <4 x i64> @broadcast128(<2 x i64> %src) {
+  CHECK-LABEL: broadcast128
+  CHECK:       vinsertf128 $1, %xmm0, %ymm0, %ymm0
+  %1 = alloca <2 x i64>, align 16
+  %2 = bitcast <2 x i64>* %1 to i8*
+  store <2 x i64> %src, <2 x i64>* %1, align 16
+  %3 = call <4 x i64> @llvm.x86.avx2.vbroadcasti128(i8* %2)
+  ret <4 x i64> %3
+}
+
+declare <4 x i64> @llvm.x86.avx2.vbroadcasti128(i8*) #1