r282735 - [sanitizer-coverage/libFuzzer] make the guards for trace-pc 32-bit; create one array of guards per function, instead of one guard per BB. reorganize the code so that trace-pc-guard does not create unneeded globals

[Kostya Serebryany via cfe-commits]

Author: kcc
Date: Thu Sep 29 12:43:24 2016
New Revision: 282735

URL: http://llvm.org/viewvc/llvm-project?rev=282735&view=rev
Log:
[sanitizer-coverage/libFuzzer] make the guards for trace-pc 32-bit; create one array of guards per function, instead of one guard per BB. reorganize the code so that trace-pc-guard does not create unneeded globals

Modified:
    cfe/trunk/docs/SanitizerCoverage.rst

Modified: cfe/trunk/docs/SanitizerCoverage.rst
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/docs/SanitizerCoverage.rst?rev=282735&r1=282734&r2=282735&view=diff
==============================================================================
--- cfe/trunk/docs/SanitizerCoverage.rst (original)
+++ cfe/trunk/docs/SanitizerCoverage.rst Thu Sep 29 12:43:24 2016
@@ -334,7 +334,7 @@ on every edge:
    if (guard_variable)
      __sanitizer_cov_trace_pc_guard(&guard_variable)
 
-Every edge will have its own `guard_variable` (uintptr_t).
+Every edge will have its own `guard_variable` (uint32_t).
 
 The compler will also insert a module constructor that will call
 
@@ -342,7 +342,7 @@ The compler will also insert a module co
 
    // The guards are [start, stop).
    // This function may be called multiple times with the same values of start/stop.
-   __sanitizer_cov_trace_pc_guard_init(uintptr_t *start, uintptr_t *stop);
+   __sanitizer_cov_trace_pc_guard_init(uint32_t_t *start, uint32_t *stop);
 
 Similarly to `trace-pc,indirect-calls`, with `trace-pc-guards,indirect-calls`
 ``__sanitizer_cov_trace_pc_indirect(void *callee)`` will be inserted on every indirect call.