derek.holloway
7502bf64a4
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57 lines
1.9 KiB
LLVM
57 lines
1.9 KiB
LLVM
; Test -sanitizer-coverage-trace-compares=1 (instrumenting a switch)
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; RUN: opt < %s -passes='module(sancov-module)' -sanitizer-coverage-level=1 -sanitizer-coverage-trace-compares=1 -S | FileCheck %s
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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"
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target triple = "x86_64-unknown-linux-gnu"
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declare void @_Z3bari(i32)
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define void @foo(i32 %x) {
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entry:
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; CHECK: __sancov_gen_cov_switch_values = internal global [5 x i64] [i64 3, i64 32, i64 1, i64 101, i64 1001]
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; CHECK: [[TMP:%[0-9]*]] = zext i32 %x to i64
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; CHECK-NEXT: call void @__sanitizer_cov_trace_switch(i64 [[TMP]], ptr @__sancov_gen_cov_switch_values)
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switch i32 %x, label %sw.epilog [
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i32 1, label %sw.bb
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i32 1001, label %sw.bb.1
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i32 101, label %sw.bb.2
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]
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sw.bb: ; preds = %entry
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tail call void @_Z3bari(i32 4)
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br label %sw.epilog
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sw.bb.1: ; preds = %entry
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tail call void @_Z3bari(i32 5)
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br label %sw.epilog
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sw.bb.2: ; preds = %entry
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tail call void @_Z3bari(i32 6)
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br label %sw.epilog
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sw.epilog: ; preds = %entry, %sw.bb.2, %sw.bb.1, %sw.bb
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ret void
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}
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define void @fooi72(i72 %x) {
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entry:
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switch i72 %x, label %sw.epilog [
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i72 1, label %sw.bb
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i72 101, label %sw.bb.1
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i72 1001, label %sw.bb.2
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]
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sw.bb: ; preds = %entry
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tail call void @_Z3bari(i32 4)
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br label %sw.epilog
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sw.bb.1: ; preds = %entry
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tail call void @_Z3bari(i32 5)
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br label %sw.epilog
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sw.bb.2: ; preds = %entry
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tail call void @_Z3bari(i32 6)
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br label %sw.epilog
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sw.epilog: ; preds = %entry, %sw.bb.2, %sw.bb.1, %sw.bb
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ret void
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}
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