forked from OSchip/llvm-project
66 lines
2.0 KiB
C++
66 lines
2.0 KiB
C++
// RUN: %clang_analyze_cc1 %s \
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// RUN: -analyzer-checker=core \
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// RUN: -analyzer-checker=debug.ExprInspection \
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// RUN: 2>&1 | FileCheck %s
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// In this test we check how the solver's symbol simplification mechanism
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// simplifies the disequality info.
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void clang_analyzer_printState();
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void test(int a, int b, int c, int d) {
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if (a + b + c == d)
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return;
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clang_analyzer_printState();
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// CHECK: "disequality_info": [
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// CHECK-NEXT: {
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// CHECK-NEXT: "class": [ "((reg_$0<int a>) + (reg_$1<int b>)) + (reg_$2<int c>)" ],
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// CHECK-NEXT: "disequal_to": [
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// CHECK-NEXT: [ "reg_$3<int d>" ]]
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// CHECK-NEXT: },
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// CHECK-NEXT: {
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// CHECK-NEXT: "class": [ "reg_$3<int d>" ],
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// CHECK-NEXT: "disequal_to": [
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// CHECK-NEXT: [ "((reg_$0<int a>) + (reg_$1<int b>)) + (reg_$2<int c>)" ]]
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// CHECK-NEXT: }
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// CHECK-NEXT: ],
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// Simplification starts here.
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if (b != 0)
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return;
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clang_analyzer_printState();
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// CHECK: "disequality_info": [
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// CHECK-NEXT: {
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// CHECK-NEXT: "class": [ "(reg_$0<int a>) + (reg_$2<int c>)" ],
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// CHECK-NEXT: "disequal_to": [
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// CHECK-NEXT: [ "reg_$3<int d>" ]]
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// CHECK-NEXT: },
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// CHECK-NEXT: {
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// CHECK-NEXT: "class": [ "reg_$3<int d>" ],
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// CHECK-NEXT: "disequal_to": [
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// CHECK-NEXT: [ "(reg_$0<int a>) + (reg_$2<int c>)" ]]
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// CHECK-NEXT: }
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// CHECK-NEXT: ],
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if (c != 0)
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return;
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clang_analyzer_printState();
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// CHECK: "disequality_info": [
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// CHECK-NEXT: {
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// CHECK-NEXT: "class": [ "reg_$0<int a>" ],
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// CHECK-NEXT: "disequal_to": [
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// CHECK-NEXT: [ "reg_$3<int d>" ]]
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// CHECK-NEXT: },
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// CHECK-NEXT: {
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// CHECK-NEXT: "class": [ "reg_$3<int d>" ],
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// CHECK-NEXT: "disequal_to": [
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// CHECK-NEXT: [ "reg_$0<int a>" ]]
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// CHECK-NEXT: }
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// CHECK-NEXT: ],
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// Keep the symbols and the constraints! alive.
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(void)(a * b * c * d);
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return;
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}
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