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llvm-mirror/test/Instrumentation/AddressSanitizer/X86
Anna Zaks 494d337bdd [asan] Don't run stack malloc on functions containing inline assembly.
It makes LLVM run out of registers even on 64-bit platforms. For example, the
following test case fails on darwin.

clang -cc1 -O0 -triple x86_64-apple-macosx10.10.0 -emit-obj -fsanitize=address -mstackrealign -o ~/tmp/ex.o -x c ex.c
error: inline assembly requires more registers than available

void TestInlineAssembly(const unsigned char *S, unsigned int pS, unsigned char *D, unsigned int pD, unsigned int h) {

unsigned int sr = 4, pDiffD = pD - 5;
unsigned int pDiffS = (pS << 1) - 5;
char flagSA = ((pS & 15) == 0),
flagDA = ((pD & 15) == 0);
asm volatile (
  "mov %0,  %%"PTR_REG("si")"\n"
  "mov %2,  %%"PTR_REG("cx")"\n"
  "mov %1,  %%"PTR_REG("di")"\n"
  "mov %8,  %%"PTR_REG("ax")"\n"
  :
  : "m" (S), "m" (D), "m" (pS), "m" (pDiffS), "m" (pDiffD), "m" (sr), "m" (flagSA), "m" (flagDA), "m" (h)
  : "%"PTR_REG("si"), "%"PTR_REG("di"), "%"PTR_REG("ax"), "%"PTR_REG("cx"), "%"PTR_REG("dx"), "memory"
);
}

http://reviews.llvm.org/D10719

llvm-svn: 240722
2015-06-25 23:35:45 +00:00
..
asm_attr.ll
asm_cfi.ll
asm_cfi.s
asm_cpuid.ll
asm_more_registers_than_available.ll
asm_mov_no_instrumentation.s
asm_mov.ll
asm_mov.s
asm_rep_movs.ll
asm_rsp_mem_op.s
asm_swap_intel.s
bug_11395.ll
lit.local.cfg