Rebased PNaCl localmods in LLVM to 223109

test/Transforms/NaCl/constant-vector-rematerialization.ll

+; RUN: opt < %s -backend-canonicalize -S | FileCheck %s
+
+; Test that constant vectors that were globalized get rematerialized properly.
+
+; The datalayout is needed to determine the alignment of the globals.
+target datalayout = "e-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-p:32:32:32-v128:32:32"
+
+@veci32 = internal constant [4 x i32] [i32 1, i32 2, i32 3, i32 4]
+@veci32zero = internal constant [4 x i32] zeroinitializer
+
+@veci8 = internal constant [16 x i8] [i8 255, i8 255, i8 255, i8 0, i8 255, i8 255, i8 0, i8 255, i8 255, i8 0, i8 255, i8 255, i8 0, i8 255, i8 255, i8 255]
+@veci8zero = internal constant [16 x i8] zeroinitializer
+
+define <4 x i32> @test_vec_i32() {
+  %bc = bitcast [4 x i32]* @veci32 to <4 x i32>*
+  %v = load <4 x i32>* %bc
+  ret <4 x i32> %v
+}
+; CHECK-LABEL: @test_vec_i32(
+; CHECK-NEXT: ret <4 x i32> <i32 1, i32 2, i32 3, i32 4>
+
+define <4 x i32> @test_vec_i32_zero() {
+  %bc = bitcast [4 x i32]* @veci32zero to <4 x i32>*
+  %v = load <4 x i32>* %bc
+  ret <4 x i32> %v
+}
+; CHECK-LABEL: @test_vec_i32_zero(
+; CHECK-NEXT: ret <4 x i32> zeroinitializer
+
+define <4 x i32> @test_vec_i8() {
+  %bc = bitcast [16 x i8]* @veci8 to <4 x i32>*
+  %v = load <4 x i32>* %bc
+  ret <4 x i32> %v
+}
+; CHECK-LABEL: @test_vec_i8(
+; CHECK-NEXT: ret <4 x i32> <i32 16777215, i32 -16711681, i32 -65281, i32 -256>
+
+define <4 x i32> @test_vec_i8_zero() {
+  %bc = bitcast [16 x i8]* @veci8zero to <4 x i32>*
+  %v = load <4 x i32>* %bc
+  ret <4 x i32> %v
+}
+; CHECK-LABEL: @test_vec_i8_zero(
+; CHECK-NEXT: ret <4 x i32> zeroinitializer