Adhemerval Zanella cb9b91e743 [sanitizer] [msan] Fix origin store of array types ... This patch fixes the memory sanitizer origin store instrumentation for array types. This can be triggered by cases where frontend lowers function return to array type instead of aggregation. For instance, the C code: -- struct mypair { int64_t x; int y; }; mypair my_make_pair(int64_t x, int y) { mypair p; p.x = x; p.y = y; return p; } int foo (int p) { mypair z = my_make_pair(p, 0); return z.y + z.x; } -- It will be lowered with target set to aarch64-linux and -O0 to: -- [...] define i32 @_Z3fooi(i32 %p) #0 { [...] %call = call [2 x i64] @_Z12my_make_pairxi(i64 %conv, i32 0) %1 = bitcast %struct.mypair* %z to [2 x i64]* store [2 x i64] %call, [2 x i64]* %1, align 8 [...] -- The origin store will emit a 'icmp' to test each store value again the TLS origin array. However since 'icmp' does not support ArrayType the memory instrumentation phase will bail out with an error. This patch change it by using the same strategy used for struct type on array. It fixes the 'test/msan/insertvalue_origin.cc' for aarch64 (the -O0 case). llvm-svn: 257375		2016-01-11 19:55:27 +00:00
..
AddressSanitizer	[ASAN] Add doFinalization to reset state	2015-12-05 14:42:34 +00:00
BoundsChecking
DataFlowSanitizer	[sanitizer] [dfsan] Unify aarch64 mapping	2015-11-27 12:42:39 +00:00
InstrProfiling	Partial fix for PR25912, see comment 13. Should fix the sanitizer bootstrap bot	2015-12-22 01:18:49 +00:00
MemorySanitizer	[sanitizer] [msan] Fix origin store of array types	2016-01-11 19:55:27 +00:00
SanitizerCoverage	Create llvm.global_ctors in the new format.	2015-12-06 16:18:25 +00:00
ThreadSanitizer	Revert "Change memcpy/memset/memmove to have dest and source alignments."	2015-11-19 05:56:52 +00:00