[compiler-rt] r210458 - [msan] Add a test for mmx.packuswb.

[Evgeniy Stepanov]

Author: eugenis
Date: Mon Jun  9 03:58:41 2014
New Revision: 210458

URL: http://llvm.org/viewvc/llvm-project?rev=210458&view=rev
Log:
[msan] Add a test for mmx.packuswb.

Modified:
    compiler-rt/trunk/lib/msan/tests/msan_test.cc

Modified: compiler-rt/trunk/lib/msan/tests/msan_test.cc
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/msan/tests/msan_test.cc?rev=210458&r1=210457&r2=210458&view=diff
==============================================================================
--- compiler-rt/trunk/lib/msan/tests/msan_test.cc (original)
+++ compiler-rt/trunk/lib/msan/tests/msan_test.cc Mon Jun  9 03:58:41 2014
@@ -3641,6 +3641,28 @@ TEST(VectorPackTest, sse2_packssdw_128)
   EXPECT_EQ(c[7], S2_max);
 }
 
+TEST(VectorPackTest, mmx_packuswb) {
+  const unsigned U1_max = (1 << 8) - 1;
+  V4x16 a = {Poisoned<U2>(0, 0xFF00), Poisoned<U2>(0, 0xF000U), U1_max + 100,
+             4};
+  V4x16 b = {Poisoned<U2>(0, 0xFF), U1_max - 1, Poisoned<U2>(0, 0xF), U1_max};
+  V8x8 c = _mm_packs_pu16(a, b);
+
+  EXPECT_POISONED(c[0]);
+  EXPECT_POISONED(c[1]);
+  EXPECT_NOT_POISONED(c[2]);
+  EXPECT_NOT_POISONED(c[3]);
+  EXPECT_POISONED(c[4]);
+  EXPECT_NOT_POISONED(c[5]);
+  EXPECT_POISONED(c[6]);
+  EXPECT_NOT_POISONED(c[7]);
+
+  EXPECT_EQ(c[2], U1_max);
+  EXPECT_EQ(c[3], 4);
+  EXPECT_EQ(c[5], U1_max - 1);
+  EXPECT_EQ(c[7], U1_max);
+}
+
 TEST(MemorySanitizerDr, StoreInDSOTest) {
   if (!__msan_has_dynamic_component()) return;
   char* s = new char[10];