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[msan] Fix UnalignedLoad/UnalignedStore tests. 

Add alignment attrubutes to ensure that the tests actually test unaligned
access irrespective of the stack layout.

llvm-svn: 229398
This commit is contained in:
Evgeniy Stepanov 2015-02-16 15:05:14 +00:00
parent 292acab847
commit 5c6de59ec4
1 changed files with 8 additions and 9 deletions
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17
compiler-rt/lib/msan/tests/msan_test.cc
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@ -3522,7 +3522,7 @@ TEST(MemorySanitizer, VolatileBitfield) {
}
TEST(MemorySanitizer, UnalignedLoad) {
char x[32];
char x[32] __attribute__((aligned(8)));
U4 origin = __LINE__;
for (unsigned i = 0; i < sizeof(x) / 4; ++i)
__msan_set_origin(x + 4 * i, 4, origin + i);
@ -3556,7 +3556,7 @@ TEST(MemorySanitizer, UnalignedLoad) {
}
TEST(MemorySanitizer, UnalignedStore16) {
char x[5];
char x[5] __attribute__((aligned(4)));
U2 y2 = 0;
U4 origin = __LINE__;
__msan_poison(&y2, 1);
@ -3567,11 +3567,10 @@ TEST(MemorySanitizer, UnalignedStore16) {
EXPECT_POISONED_O(x[1], origin);
EXPECT_NOT_POISONED(x[2]);
EXPECT_POISONED_O(x[3], origin);
EXPECT_POISONED_O(x[4], origin);
}
TEST(MemorySanitizer, UnalignedStore32) {
char x[8];
char x[8] __attribute__((aligned(4)));
U4 y4 = 0;
U4 origin = __LINE__;
__msan_poison(&y4, 2);
@ -3589,7 +3588,7 @@ TEST(MemorySanitizer, UnalignedStore32) {
}
TEST(MemorySanitizer, UnalignedStore64) {
char x[16];
char x[16] __attribute__((aligned(8)));
U8 y8 = 0;
U4 origin = __LINE__;
__msan_poison(&y8, 3);
@ -3612,7 +3611,7 @@ TEST(MemorySanitizer, UnalignedStore64) {
}
TEST(MemorySanitizer, UnalignedStore16_precise) {
char x[8];
char x[8] __attribute__((aligned(4)));
U2 y = 0;
U4 originx1 = __LINE__;
U4 originx2 = __LINE__;
@ -3635,7 +3634,7 @@ TEST(MemorySanitizer, UnalignedStore16_precise) {
}
TEST(MemorySanitizer, UnalignedStore16_precise2) {
char x[8];
char x[8] __attribute__((aligned(4)));
U2 y = 0;
U4 originx1 = __LINE__;
U4 originx2 = __LINE__;
@ -3658,7 +3657,7 @@ TEST(MemorySanitizer, UnalignedStore16_precise2) {
}
TEST(MemorySanitizer, UnalignedStore64_precise) {
char x[12];
char x[12] __attribute__((aligned(8)));
U8 y = 0;
U4 originx1 = __LINE__;
U4 originx2 = __LINE__;
@ -3690,7 +3689,7 @@ TEST(MemorySanitizer, UnalignedStore64_precise) {
}
TEST(MemorySanitizer, UnalignedStore64_precise2) {
char x[12];
char x[12] __attribute__((aligned(8)));
U8 y = 0;
U4 originx1 = __LINE__;
U4 originx2 = __LINE__;