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196 lines
4.9 KiB
196 lines
4.9 KiB
4 months ago
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// RUN: %clang_analyze_cc1 -w -analyzer-checker=debug.DumpLiveExprs %s 2>&1\
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// RUN: | FileCheck %s
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int coin();
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int testThatDumperWorks(int x, int y, int z) {
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return x ? y : z;
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}
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// [B5 (ENTRY)]
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// |
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// V
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// [B4 (x)] ? [B2 (y)] : [B3 (z)]
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// \ /
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// ---|----
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// V
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// [B1] --> [B0 (EXIT)]
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// return
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// CHECK: [ B0 (live expressions at block exit) ]
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// CHECK-EMPTY:
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// CHECK-EMPTY:
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// CHECK: [ B1 (live expressions at block exit) ]
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// CHECK-EMPTY:
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// CHECK-EMPTY:
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// CHECK: [ B2 (live expressions at block exit) ]
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// CHECK-EMPTY:
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// CHECK-NEXT: DeclRefExpr {{.*}} 'y' 'int'
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// CHECK-EMPTY:
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// CHECK-NEXT: DeclRefExpr {{.*}} 'z' 'int'
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// CHECK-EMPTY:
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// CHECK-NEXT: ImplicitCastExpr {{.*}} <IntegralToBoolean>
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// CHECK-NEXT: `-ImplicitCastExpr {{.*}} <LValueToRValue>
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// CHECK-NEXT: `-DeclRefExpr {{.*}} 'x' 'int'
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// CHECK-EMPTY:
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// CHECK-EMPTY:
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// CHECK: [ B3 (live expressions at block exit) ]
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// CHECK-EMPTY:
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// CHECK-NEXT: DeclRefExpr {{.*}} 'y' 'int'
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// CHECK-EMPTY:
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// CHECK-NEXT: DeclRefExpr {{.*}} 'z' 'int'
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// CHECK-EMPTY:
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// CHECK-NEXT: ImplicitCastExpr {{.*}} <IntegralToBoolean>
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// CHECK-NEXT: `-ImplicitCastExpr {{.*}} <LValueToRValue>
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// CHECK-NEXT: `-DeclRefExpr {{.*}} 'x' 'int'
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// CHECK: [ B4 (live expressions at block exit) ]
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// CHECK-EMPTY:
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// CHECK-NEXT: DeclRefExpr {{.*}} 'y' 'int'
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// CHECK-EMPTY:
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// CHECK-NEXT: DeclRefExpr {{.*}} 'z' 'int'
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// CHECK-EMPTY:
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// CHECK-NEXT: ImplicitCastExpr {{.*}} <IntegralToBoolean>
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// CHECK-NEXT: `-ImplicitCastExpr {{.*}} <LValueToRValue>
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// CHECK-NEXT: `-DeclRefExpr {{.*}} 'x' 'int'
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// CHECK-EMPTY:
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// CHECK-EMPTY:
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// CHECK: [ B5 (live expressions at block exit) ]
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// CHECK-EMPTY:
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// CHECK-NEXT: DeclRefExpr {{.*}} 'y' 'int'
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// CHECK-EMPTY:
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// CHECK-NEXT: DeclRefExpr {{.*}} 'z' 'int'
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// CHECK-EMPTY:
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// CHECK-EMPTY:
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void testIfBranchExpression(bool flag) {
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// No expressions should be carried over from one block to another here.
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while (flag) {
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int e = 1;
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if (true)
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e;
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}
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}
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// CHECK: [ B0 (live expressions at block exit) ]
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// CHECK-EMPTY:
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// CHECK-EMPTY:
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// CHECK: [ B1 (live expressions at block exit) ]
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// CHECK-EMPTY:
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// CHECK-EMPTY:
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// CHECK: [ B2 (live expressions at block exit) ]
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// CHECK-EMPTY:
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// CHECK-EMPTY:
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// CHECK: [ B3 (live expressions at block exit) ]
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// CHECK-EMPTY:
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// CHECK-EMPTY:
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// CHECK: [ B4 (live expressions at block exit) ]
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// CHECK-EMPTY:
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// CHECK-EMPTY:
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// CHECK: [ B5 (live expressions at block exit) ]
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// CHECK-EMPTY:
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// CHECK-EMPTY:
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void testWhileBodyExpression(bool flag) {
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// No expressions should be carried over from one block to another here.
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while (flag) {
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int e = 1;
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while (coin())
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e;
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}
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}
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// CHECK: [ B0 (live expressions at block exit) ]
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// CHECK-EMPTY:
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// CHECK-EMPTY:
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// CHECK: [ B1 (live expressions at block exit) ]
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// CHECK-EMPTY:
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// CHECK-EMPTY:
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// CHECK: [ B2 (live expressions at block exit) ]
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// CHECK-EMPTY:
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// CHECK-EMPTY:
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// CHECK: [ B3 (live expressions at block exit) ]
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// CHECK-EMPTY:
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// CHECK-EMPTY:
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// CHECK: [ B4 (live expressions at block exit) ]
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// CHECK-EMPTY:
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// CHECK-EMPTY:
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// CHECK: [ B5 (live expressions at block exit) ]
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// CHECK-EMPTY:
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// CHECK-EMPTY:
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void testDoWhileBodyExpression(bool flag) {
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// No expressions should be carried over from one block to another here.
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while (flag) {
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int e = 1;
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do
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e;
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while (coin());
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}
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}
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// CHECK: [ B0 (live expressions at block exit) ]
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// CHECK-EMPTY:
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// CHECK-EMPTY:
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// CHECK: [ B1 (live expressions at block exit) ]
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// CHECK-EMPTY:
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// CHECK-EMPTY:
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// CHECK: [ B2 (live expressions at block exit) ]
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// CHECK-EMPTY:
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// CHECK-EMPTY:
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// CHECK: [ B3 (live expressions at block exit) ]
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// CHECK-EMPTY:
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// CHECK-EMPTY:
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// CHECK: [ B4 (live expressions at block exit) ]
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// CHECK-EMPTY:
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// CHECK-EMPTY:
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// CHECK: [ B5 (live expressions at block exit) ]
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// CHECK-EMPTY:
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// CHECK-EMPTY:
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void testForBodyExpression(bool flag) {
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// No expressions should be carried over from one block to another here.
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while (flag) {
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int e = 1;
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for (; coin();)
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e;
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}
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}
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// CHECK: [ B0 (live expressions at block exit) ]
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// CHECK-EMPTY:
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// CHECK-EMPTY:
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// CHECK: [ B1 (live expressions at block exit) ]
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// CHECK-EMPTY:
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// CHECK-EMPTY:
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// CHECK: [ B2 (live expressions at block exit) ]
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// CHECK-EMPTY:
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// CHECK-EMPTY:
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// CHECK: [ B3 (live expressions at block exit) ]
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// CHECK-EMPTY:
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// CHECK-EMPTY:
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// CHECK: [ B4 (live expressions at block exit) ]
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// CHECK-EMPTY:
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// CHECK-EMPTY:
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// CHECK: [ B5 (live expressions at block exit) ]
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// CHECK-EMPTY:
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// CHECK-EMPTY:
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void clang_analyzer_eval(bool);
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void test_lambda_refcapture() {
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int a = 6;
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[&](int &a) { a = 42; }(a);
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clang_analyzer_eval(a == 42); // expected-warning{{TRUE}}
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}
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// CHECK: [ B0 (live expressions at block exit) ]
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// CHECK-EMPTY:
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// CHECK-EMPTY:
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// CHECK-NEXT: [ B1 (live expressions at block exit) ]
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// CHECK-EMPTY:
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// CHECK-EMPTY:
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// CHECK-NEXT: [ B2 (live expressions at block exit) ]
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// CHECK-EMPTY:
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// CHECK-EMPTY:
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