126 lines
		
	
	
		
			5.3 KiB
		
	
	
	
		
			C++
		
	
	
	
			
		
		
	
	
			126 lines
		
	
	
		
			5.3 KiB
		
	
	
	
		
			C++
		
	
	
	
// RUN: %clang_cc1 -mllvm -emptyline-comment-coverage=false -fprofile-instrument=clang -fcoverage-mapping -dump-coverage-mapping -emit-llvm-only -std=c++1z -triple %itanium_abi_triple -main-file-name switch.cpp %s | FileCheck %s
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// CHECK: foo
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void foo(int i) {   // CHECK-NEXT: File 0, [[@LINE]]:17 -> [[@LINE+8]]:2 = #0
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  switch(i) {       // CHECK-NEXT: Gap,File 0, [[@LINE]]:13 -> [[@LINE+4]]:10 = 0
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  case 1:           // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+1]]:11 = #2
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    return;
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  case 2:           // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+1]]:10 = #3
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    break;          // CHECK-NEXT: Gap,File 0, [[@LINE]]:10 -> [[@LINE+2]]:3 = #1
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  }
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  int x = 0;        // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+1]]:2 = #1
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}
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int nop() { return 0; }
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                    // CHECK: bar
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void bar(int i) {   // CHECK-NEXT: File 0, [[@LINE]]:17 -> [[@LINE+20]]:2 = #0
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  switch (i)
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    ;               // CHECK-NEXT: File 0, [[@LINE]]:5 -> [[@LINE]]:6 = 0
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  switch (i) {      // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+16]]:2 = #1
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  }
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  switch (i)        // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+13]]:2 = #2
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    nop();          // CHECK-NEXT: File 0, [[@LINE]]:5 -> [[@LINE]]:10 = 0
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  switch (i)        // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+10]]:2 = #3
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  case 1:           // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+1]]:10 = #5
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    nop();
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  switch (i) {      // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+6]]:2 = #4
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    nop();          // CHECK-NEXT: Gap,File 0, [[@LINE-1]]:14 -> [[@LINE+2]]:10 = 0
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  case 1:           // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+1]]:10 = #7
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    nop();
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  }
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  nop();            // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+1]]:2 = #6
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}
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                    // CHECK: baz
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void baz() {        // CHECK-NEXT: File 0, [[@LINE]]:12 -> [[@LINE+5]]:2 = #0
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  switch (int i = true ? nop()  // CHECK: [[@LINE]]:26 -> [[@LINE]]:31 = #2
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                       : nop(); // CHECK-NEXT: [[@LINE]]:26 -> [[@LINE]]:31 = (#0 - #2)
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          i) {}
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  nop();            // CHECK-NEXT: [[@LINE]]:3 -> [[@LINE+1]]:2 = #1
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}
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                    // CHECK-NEXT: main
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int main() {        // CHECK-NEXT: File 0, [[@LINE]]:12 -> [[@LINE+35]]:2 = #0
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  int i = 0;
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  switch(i) {       // CHECK-NEXT: Gap,File 0, [[@LINE]]:13 -> [[@LINE+8]]:10 = 0
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  case 0:           // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+2]]:10 = #2
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    i = 1;
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    break;
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  case 1:           // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+2]]:10 = #3
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    i = 2;
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    break;
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  default:          // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+1]]:10 = #4
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    break;          // CHECK-NEXT: File 0, [[@LINE]]:10 -> [[@LINE+2]]:3 = #1
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  }
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  switch(i) {       // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+23]]:2 = #1
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  case 0:           // CHECK-NEXT: Gap,File 0, [[@LINE-1]]:13 -> [[@LINE+6]]:10 = 0
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    i = 1;          // CHECK-NEXT: File 0, [[@LINE-1]]:3 -> [[@LINE+1]]:10 = #6
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    break;
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  case 1:           // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+3]]:10 = #7
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    i = 2;
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  default:          // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+1]]:10 = (#7 + #8)
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    break;          // CHECK-NEXT: File 0, [[@LINE]]:10 -> [[@LINE+3]]:3 = #5
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  }
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                    // CHECK-NEXT: File 0, [[@LINE+1]]:3 -> [[@LINE+14]]:2 = #5
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  switch(i) {       // CHECK-NEXT: Gap,File 0, [[@LINE]]:13 -> [[@LINE+6]]:11 = 0
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  case 1:           // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+5]]:11 = #10
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  case 2:           // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+4]]:11 = (#10 + #11)
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    i = 11;
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  case 3:           // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+2]]:11 = ((#10 + #11) + #12)
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  case 4:           // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+1]]:11 = (((#10 + #11) + #12) + #13)
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    i = 99;
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  }
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  foo(1);           // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+3]]:11 = #9
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  bar(1);
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  baz();
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  return 0;
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}
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                     // CHECK: pr44011
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int pr44011(int i) { // CHECK-NEXT: File 0, [[@LINE]]:20 -> {{.*}}:2 = #0
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  switch (i) {       // CHECK-NEXT: Gap,File 0, [[@LINE]]:14 -> [[@LINE+6]]:13 = 0
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  case 1:            // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+1]]:13 = #2
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    return 0;
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  default:           // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+1]]:13 = #3
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    return 1;
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  }
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} // A region for counter #1 is missing due to the missing return.
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// FIXME: End location for "case 1" shouldn't point at the end of the switch.
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                         // CHECK: fallthrough
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int fallthrough(int i) { // CHECK-NEXT: File 0, [[@LINE]]:24 -> [[@LINE+12]]:2 = #0
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  switch(i) {       // CHECK-NEXT: Gap,File 0, [[@LINE]]:13 -> [[@LINE+9]]:10 = 0
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  case 1:           // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+8]]:10 = #2
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    i = 23;
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  case 2:           // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+2]]:10 = (#2 + #3)
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    i = 11;
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    break;
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  case 3:           // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+3]]:10 = #4
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  case 4:           // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+2]]:10 = (#4 + #5)
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    i = 99;
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    break;
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  }
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}
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void abort(void) __attribute((noreturn));
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                   // CHECK: noret
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int noret(int x) { // CHECK-NEXT: File 0, [[@LINE]]:18 -> [[@LINE+9]]:2
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  switch (x) {     // CHECK-NEXT: Gap,File 0, [[@LINE]]:14 -> [[@LINE+6]]:14 = 0
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  default:         // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+1]]:12
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    abort();
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  case 1:         // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+1]]:13
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    return 5;
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  case 2:         // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+1]]:14
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    return 10;
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  }
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}
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