1 ; Test -sanitizer-coverage-trace-compares=1 2 ; RUN: opt < %s -sancov -sanitizer-coverage-level=1 -sanitizer-coverage-trace-compares=1 -S | FileCheck %s 3 4 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" 5 target triple = "x86_64-unknown-linux-gnu" 6 define i32 @foo(i32 %a, i32 %b) #0 { 7 entry: 8 9 ; compare (non-const, non-const) 10 %cmp = icmp slt i32 %a, %b 11 ; CHECK: call void @__sanitizer_cov_trace_cmp4 12 ; CHECK-NEXT: icmp slt i32 %a, %b 13 14 ; compare (const, non-const) 15 icmp slt i32 %a, 1 16 ; CHECK: call void @__sanitizer_cov_trace_const_cmp4(i32 1, i32 %a) 17 ; CHECK-NEXT: icmp slt i32 %a, 1 18 19 ; compare (non-const, const) 20 icmp slt i32 1, %a 21 ; CHECK: call void @__sanitizer_cov_trace_const_cmp4(i32 1, i32 %a) 22 ; CHECK-NEXT: icmp slt i32 1, %a 23 24 ; compare (const, const) - should not be instrumented 25 icmp slt i32 1, 0 26 ; CHECK-NOT: call void @__sanitizer_cov_trace 27 ; CHECK icmp slt i32 1, 0 28 29 ; compare variables of byte size 30 %x = trunc i32 %a to i8 31 32 icmp slt i8 %x, 1 33 ; CHECK: call void @__sanitizer_cov_trace_const_cmp1(i8 1, i8 %x) 34 ; CHECK-NEXT: icmp slt i8 %x, 1 35 36 icmp slt i8 1, %x 37 ; CHECK: call void @__sanitizer_cov_trace_const_cmp1(i8 1, i8 %x) 38 ; CHECK-NEXT: icmp slt i8 1, %x 39 40 ; compare variables of word size 41 %y = trunc i32 %a to i16 42 43 icmp slt i16 %y, 1 44 ; CHECK: call void @__sanitizer_cov_trace_const_cmp2(i16 1, i16 %y) 45 ; CHECK-NEXT: icmp slt i16 %y, 1 46 47 icmp slt i16 1, %y 48 ; CHECK: call void @__sanitizer_cov_trace_const_cmp2(i16 1, i16 %y) 49 ; CHECK-NEXT: icmp slt i16 1, %y 50 51 ; compare variables of qword size 52 %z = zext i32 %a to i64 53 54 icmp slt i64 %z, 1 55 ; CHECK: call void @__sanitizer_cov_trace_const_cmp8(i64 1, i64 %z) 56 ; CHECK-NEXT: icmp slt i64 %z, 1 57 58 icmp slt i64 1, %z 59 ; CHECK: call void @__sanitizer_cov_trace_const_cmp8(i64 1, i64 %z) 60 ; CHECK-NEXT: icmp slt i64 1, %z 61 62 %conv = zext i1 %cmp to i32 63 ret i32 %conv 64 } 65
