From 5ac427b8e46cf32832708e584fe1a43a56097cfd Mon Sep 17 00:00:00 2001 From: Kostya Serebryany Date: Tue, 30 Aug 2016 01:12:10 +0000 Subject: [sanitizer-coverage] add two more modes of instrumentation: trace-div and trace-gep, mostly usaful for value-profile-based fuzzing; llvm part llvm-svn: 280043 --- .../SanitizerCoverage/div-tracing.ll | 37 ++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 llvm/test/Instrumentation/SanitizerCoverage/div-tracing.ll (limited to 'llvm/test/Instrumentation/SanitizerCoverage/div-tracing.ll') diff --git a/llvm/test/Instrumentation/SanitizerCoverage/div-tracing.ll b/llvm/test/Instrumentation/SanitizerCoverage/div-tracing.ll new file mode 100644 index 00000000000..aee872c130b --- /dev/null +++ b/llvm/test/Instrumentation/SanitizerCoverage/div-tracing.ll @@ -0,0 +1,37 @@ +; Test -sanitizer-coverage-trace-divs=1 +; RUN: opt < %s -sancov -sanitizer-coverage-level=1 -sanitizer-coverage-trace-divs=1 -S | FileCheck %s + +target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64" +target triple = "x86_64-unknown-linux-gnu" + +define i32 @div_a_b(i32 %a, i32 %b) local_unnamed_addr { +entry: + %div = sdiv i32 %a, %b + ret i32 %div +} + +; CHECK-LABEL: div_a_b +; CHECK: call void @__sanitizer_cov_trace_div4(i32 %b) +; CHECK: ret + + +define i32 @div_a_10(i32 %a) local_unnamed_addr { +entry: + %div = sdiv i32 %a, 10 + ret i32 %div +} + +; CHECK-LABEL: div_a_10 +; CHECK-NOT: __sanitizer_cov_trace_div +; CHECK: ret + +define i64 @div_a_b_64(i64 %a, i64 %b) local_unnamed_addr { +entry: + %div = udiv i64 %a, %b + ret i64 %div +} + +; CHECK-LABEL: div_a_b +; CHECK: call void @__sanitizer_cov_trace_div8(i64 %b) +; CHECK: ret + -- cgit v1.2.3