Don't assume that a store source is a vector type just because the destination is (PR26099)
llvm-svn: 304465
diff --git a/clang/lib/CodeGen/CGExpr.cpp b/clang/lib/CodeGen/CGExpr.cpp
index 84ce896..2aa0458 100644
--- a/clang/lib/CodeGen/CGExpr.cpp
+++ b/clang/lib/CodeGen/CGExpr.cpp
@@ -1487,9 +1487,9 @@
// Handle vectors differently to get better performance.
if (Ty->isVectorType()) {
llvm::Type *SrcTy = Value->getType();
- auto *VecTy = cast<llvm::VectorType>(SrcTy);
+ auto *VecTy = dyn_cast<llvm::VectorType>(SrcTy);
// Handle vec3 special.
- if (VecTy->getNumElements() == 3) {
+ if (VecTy && VecTy->getNumElements() == 3) {
// Our source is a vec3, do a shuffle vector to make it a vec4.
llvm::Constant *Mask[] = {Builder.getInt32(0), Builder.getInt32(1),
Builder.getInt32(2),
diff --git a/clang/test/CodeGen/pr26099.c b/clang/test/CodeGen/pr26099.c
new file mode 100644
index 0000000..15b73b8
--- /dev/null
+++ b/clang/test/CodeGen/pr26099.c
@@ -0,0 +1,12 @@
+// RUN: %clang_cc1 -ffreestanding %s -triple=i686-apple-darwin -target-feature +mmx -emit-llvm -o - -Wall -Werror
+// RUN: %clang_cc1 -ffreestanding %s -triple=x86_64-apple-darwin -target-feature +mmx -emit-llvm -o - -Wall -Werror
+// REQUIRES: asserts
+
+#include <x86intrin.h>
+
+int __attribute__ ((__vector_size__ (8))) b;
+
+void bar(int a)
+{
+ b = __builtin_ia32_vec_init_v2si (0, a);
+}
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