| // RUN: %clang_cc1 -fms-extensions -mllvm -emptyline-comment-coverage=false -fprofile-instrument=clang -fcoverage-mapping -dump-coverage-mapping -emit-llvm-only -std=c++23 -triple %itanium_abi_triple -main-file-name if.cpp %s | FileCheck %s |
| // RUN: %clang_cc1 -fms-extensions -mllvm -emptyline-comment-coverage=false -fcoverage-mcdc -fprofile-instrument=clang -fcoverage-mapping -dump-coverage-mapping -emit-llvm-only -std=c++2b -triple %itanium_abi_triple -main-file-name if.cpp %s | FileCheck %s |
| |
| int nop() { return 0; } |
| struct S { |
| int i; |
| int putprop(int j) { |
| i = j; |
| return i; |
| } |
| __declspec(property(put = putprop)) int the_prop; |
| }; |
| |
| // CHECK-LABEL: _Z3foov: |
| // CHECK-NEXT: [[@LINE+3]]:12 -> [[@LINE+8]]:2 = #0 |
| // CHECK-NEXT: [[@LINE+3]]:15 -> [[@LINE+3]]:19 = #0 |
| // CHECK-NEXT: Branch,File 0, [[@LINE+2]]:15 -> [[@LINE+2]]:19 = 0, 0 |
| void foo() { // CHECK-NEXT: Gap,File 0, [[@LINE+1]]:21 -> [[@LINE+1]]:22 = #2 |
| if (int j = true ? nop() // CHECK-NEXT: [[@LINE]]:22 -> [[@LINE]]:27 = #2 |
| : nop(); // CHECK-NEXT: [[@LINE]]:22 -> [[@LINE]]:27 = (#0 - #2) |
| j) // CHECK-NEXT: [[@LINE]]:7 -> [[@LINE]]:8 = #0 |
| ++j; // CHECK-NEXT: Branch,File 0, [[@LINE-1]]:7 -> [[@LINE-1]]:8 = #1, (#0 - #1) |
| } // CHECK-NEXT: [[@LINE-2]]:9 -> [[@LINE-1]]:5 = #1 |
| // CHECK-NEXT: [[@LINE-2]]:5 -> [[@LINE-2]]:8 = #1 |
| |
| // GH-57377 |
| // CHECK-LABEL: _Z30check_constexpr_true_with_elsei: |
| int check_constexpr_true_with_else(int i) { // CHECK-NEXT: [[@LINE]]:{{[0-9]+}} -> {{[0-9]+}}:2 = #0 |
| if constexpr(true) { // CHECK-NEXT: Skipped,File 0, [[@LINE]]:3 -> [[@LINE]]:22 = 0 |
| i *= 3; // CHECK-NEXT: File 0, [[@LINE-1]]:22 -> [[@LINE+1]]:4 = #0 |
| } else { // CHECK-NEXT: Skipped,File 0, [[@LINE]]:4 -> [[@LINE+2]]:4 = 0 |
| i *= 5; |
| } |
| return i; |
| } |
| |
| // GH-57377 |
| // CHECK-LABEL: _Z33check_constexpr_true_without_elsei: |
| int check_constexpr_true_without_else(int i) { // CHECK-NEXT: [[@LINE]]:{{[0-9]+}} -> {{[0-9]+}}:2 = #0 |
| if constexpr(true) { // CHECK-NEXT: Skipped,File 0, [[@LINE]]:3 -> [[@LINE]]:22 = 0 |
| i *= 3; // CHECK-NEXT: File 0, [[@LINE-1]]:22 -> [[@LINE+1]]:4 = #0 |
| } |
| return i; |
| } |
| |
| // GH-57377 |
| // CHECK-LABEL: _Z31check_constexpr_false_with_elsei: |
| int check_constexpr_false_with_else(int i) { // CHECK-NEXT: [[@LINE]]:{{[0-9]+}} -> {{[0-9]+}}:2 = #0 |
| if constexpr(false) { // CHECK-NEXT: Skipped,File 0, [[@LINE]]:3 -> [[@LINE+2]]:10 = 0 |
| i *= 3; |
| } else { // CHECK-NEXT: File 0, [[@LINE]]:10 -> [[@LINE+2]]:4 = #0 |
| i *= 5; |
| } |
| return i; |
| } |
| |
| // GH-57377 |
| // CHECK-LABEL: _Z34check_constexpr_false_without_elsei: |
| int check_constexpr_false_without_else(int i) { // CHECK-NEXT: [[@LINE]]:{{[0-9]+}} -> {{[0-9]+}}:2 = #0 |
| if constexpr(false) { // CHECK-NEXT: Skipped,File 0, [[@LINE]]:3 -> [[@LINE+2]]:4 = 0 |
| i *= 3; |
| } |
| return i; |
| } |
| |
| // GH-57377 |
| // CHECK-LABEL: _Z35check_constexpr_init_true_with_elsei: |
| int check_constexpr_init_true_with_else(int i) { // CHECK-NEXT: [[@LINE]]:{{[0-9]+}} -> {{[0-9]+}}:2 = #0 |
| if constexpr(int j = i; true) { // CHECK-NEXT: Skipped,File 0, [[@LINE]]:3 -> [[@LINE]]:16 = 0 |
| // CHECK-NEXT: File 0, [[@LINE-1]]:16 -> [[@LINE-1]]:26 = #0 |
| // CHECK-NEXT: Skipped,File 0, [[@LINE-2]]:26 -> [[@LINE-2]]:33 = 0 |
| // CHECK-NEXT: File 0, [[@LINE-3]]:33 -> [[@LINE+2]]:4 = #0 |
| i *= j; |
| } else { // CHECK-NEXT: Skipped,File 0, [[@LINE]]:4 -> [[@LINE+2]]:4 = 0 |
| i *= j; |
| } |
| return i; |
| } |
| |
| // GH-57377 |
| // CHECK-LABEL: _Z38check_constexpr_init_true_without_elsei: |
| int check_constexpr_init_true_without_else(int i) { // CHECK-NEXT: [[@LINE]]:{{[0-9]+}} -> {{[0-9]+}}:2 = #0 |
| if constexpr(int j = i; true) { // CHECK-NEXT: Skipped,File 0, [[@LINE]]:3 -> [[@LINE]]:16 = 0 |
| // CHECK-NEXT: File 0, [[@LINE-1]]:16 -> [[@LINE-1]]:26 = #0 |
| // CHECK-NEXT: Skipped,File 0, [[@LINE-2]]:26 -> [[@LINE-2]]:33 = 0 |
| // CHECK-NEXT: File 0, [[@LINE-3]]:33 -> [[@LINE+2]]:4 = #0 |
| i *= j; |
| } |
| return i; |
| } |
| |
| // GH-57377 |
| // CHECK-LABEL: _Z36check_constexpr_init_false_with_elsei: |
| int check_constexpr_init_false_with_else(int i) { // CHECK-NEXT: [[@LINE]]:{{[0-9]+}} -> {{[0-9]+}}:2 = #0 |
| if constexpr(int j = i; false) { // CHECK-NEXT: Skipped,File 0, [[@LINE]]:3 -> [[@LINE]]:16 = 0 |
| // CHECK-NEXT: File 0, [[@LINE-1]]:16 -> [[@LINE-1]]:26 = #0 |
| i *= j; // CHECK-NEXT: Skipped,File 0, [[@LINE-2]]:26 -> [[@LINE+1]]:10 = 0 |
| } else { // CHECK-NEXT: File 0, [[@LINE]]:10 -> [[@LINE+2]]:4 = #0 |
| i *= j; |
| } |
| return i; |
| } |
| |
| // GH-57377 |
| // CHECK-LABEL: _Z39check_constexpr_init_false_without_elsei: |
| int check_constexpr_init_false_without_else(int i) { // CHECK-NEXT: [[@LINE]]:{{[0-9]+}} -> {{[0-9]+}}:2 = #0 |
| if constexpr(int j = i; false) { // CHECK-NEXT: Skipped,File 0, [[@LINE]]:3 -> [[@LINE]]:16 = 0 |
| // CHECK-NEXT: File 0, [[@LINE-1]]:16 -> [[@LINE-1]]:26 = #0 |
| i *= j; // CHECK-NEXT: Skipped,File 0, [[@LINE-2]]:26 -> [[@LINE+1]]:4 = 0 |
| } |
| return i; |
| } |
| |
| // CHECK-LABEL: _Z32check_constexpr_init_with_if_defi: |
| int check_constexpr_init_with_if_def(int i) { // CHECK-NEXT: [[@LINE]]:{{[0-9]+}} -> {{[0-9]+}}:2 = #0 |
| if constexpr(using foo = int; true) { // CHECK-NEXT: Skipped,File 0, [[@LINE]]:3 -> [[@LINE]]:39 = 0 |
| i *= foo(42); // CHECK-NEXT: File 0, [[@LINE-1]]:39 -> [[@LINE+1]]:4 = #0 |
| } |
| return i; |
| } |
| |
| // CHECK-LABEL: _Z32check_macro_constexpr_if_skippedi: |
| int check_macro_constexpr_if_skipped(int i) { // CHECK-NEXT: [[@LINE]]:{{[0-9]+}} -> {{[0-9]+}}:2 = #0 |
| #define IF_CONSTEXPR if constexpr // CHECK-NEXT: Expansion,File 0, [[@LINE+1]]:3 -> [[@LINE+1]]:15 = #0 (Expanded file = 1) |
| IF_CONSTEXPR(false) { // CHECK-NEXT: Skipped,File 0, [[@LINE]]:3 -> [[@LINE+2]]:4 = 0 |
| i *= 2; // CHECK-NEXT: File 1, [[@LINE-2]]:22 -> [[@LINE-2]]:34 = #0 |
| } |
| return i; |
| } |
| |
| // CHECK-LABEL: main: |
| int main() { // CHECK: File 0, [[@LINE]]:12 -> {{[0-9]+}}:2 = #0 |
| int i = 0; |
| // CHECK-NEXT: File 0, [[@LINE+3]]:6 -> [[@LINE+3]]:12 = #0 |
| // CHECK-NEXT: Branch,File 0, [[@LINE+2]]:6 -> [[@LINE+2]]:12 = #1, (#0 - #1) |
| // CHECK-NEXT: Gap,File 0, [[@LINE+1]]:13 -> [[@LINE+1]]:14 = #1 |
| if(i == 0) i = 1; // CHECK-NEXT: File 0, [[@LINE]]:14 -> [[@LINE]]:19 = #1 |
| |
| // CHECK-NEXT: File 0, [[@LINE+2]]:6 -> [[@LINE+2]]:12 = #0 |
| // CHECK-NEXT: Branch,File 0, [[@LINE+1]]:6 -> [[@LINE+1]]:12 = #2, (#0 - #2) |
| if(i == 1) // CHECK-NEXT: Gap,File 0, [[@LINE]]:13 -> [[@LINE+1]]:5 = #2 |
| i = 2; // CHECK-NEXT: File 0, [[@LINE]]:5 -> [[@LINE]]:10 = #2 |
| |
| // CHECK-NEXT: File 0, [[@LINE+2]]:6 -> [[@LINE+2]]:12 = #0 |
| // CHECK-NEXT: Branch,File 0, [[@LINE+1]]:6 -> [[@LINE+1]]:12 = #3, (#0 - #3) |
| if(i == 0) { i = 1; // CHECK-NEXT: Gap,File 0, [[@LINE]]:13 -> [[@LINE]]:14 = #3 |
| i = 2; // CHECK-NEXT: File 0, [[@LINE-1]]:14 -> [[@LINE+1]]:4 = #3 |
| } |
| // CHECK-NEXT: File 0, [[@LINE+2]]:6 -> [[@LINE+2]]:12 = #0 |
| // CHECK-NEXT: Branch,File 0, [[@LINE+1]]:6 -> [[@LINE+1]]:12 = #4, (#0 - #4) |
| if(i != 0) { // CHECK-NEXT: Gap,File 0, [[@LINE]]:13 -> [[@LINE]]:14 = #4 |
| i = 1; // CHECK-NEXT: File 0, [[@LINE-1]]:14 -> [[@LINE+1]]:4 = #4 |
| } else { // CHECK-NEXT: Gap,File 0, [[@LINE]]:4 -> [[@LINE]]:10 = (#0 - #4) |
| i = 3; // CHECK-NEXT: File 0, [[@LINE-1]]:10 -> [[@LINE+1]]:4 = (#0 - #4) |
| } |
| |
| // CHECK-NEXT: File 0, [[@LINE+2]]:7 -> [[@LINE+2]]:13 = #0 |
| // CHECK-NEXT: Branch,File 0, [[@LINE+1]]:7 -> [[@LINE+1]]:13 = #5, (#0 - #5) |
| i = i == 0? // CHECK-NEXT: Gap,File 0, [[@LINE]]:14 -> [[@LINE+1]]:9 = #5 |
| i + 1 : // CHECK-NEXT: File 0, [[@LINE]]:9 -> [[@LINE]]:14 = #5 |
| i + 2; // CHECK-NEXT: File 0, [[@LINE]]:9 -> [[@LINE]]:14 = (#0 - #5) |
| |
| // CHECK-NEXT: File 0, [[@LINE+3]]:7 -> [[@LINE+3]]:13 = #0 |
| // CHECK-NEXT: Branch,File 0, [[@LINE+2]]:7 -> [[@LINE+2]]:13 = #6, (#0 - #6) |
| // CHECK-NEXT: File 0, [[@LINE+1]]:14 -> [[@LINE+1]]:20 = #6 |
| i = i == 0?i + 12:i + 10; // CHECK-NEXT: File 0, [[@LINE]]:21 -> [[@LINE]]:27 = (#0 - #6) |
| |
| // GH-45481 |
| S s; |
| s.the_prop = 0? 1 : 2; // CHECK-NEXT: File 0, [[@LINE]]:16 -> [[@LINE]]:17 = #0 |
| // CHECK-NEXT: Branch,File 0, [[@LINE-1]]:16 -> [[@LINE-1]]:17 = 0, 0 |
| // CHECK-NEXT: Gap,File 0, [[@LINE-2]]:18 -> [[@LINE-2]]:19 = #7 |
| // CHECK-NEXT: File 0, [[@LINE-3]]:19 -> [[@LINE-3]]:20 = #7 |
| // CHECK-NEXT: File 0, [[@LINE-4]]:23 -> [[@LINE-4]]:24 = (#0 - #7) |
| if (s.the_prop = 1) { // CHECK-NEXT: File 0, [[@LINE]]:7 -> [[@LINE]]:21 = #0 |
| return 1; // CHECK-NEXT: Branch,File 0, [[@LINE-1]]:7 -> [[@LINE-1]]:21 = #8, (#0 - #8) |
| } // CHECK-NEXT: Gap,File 0, [[@LINE-2]]:22 -> [[@LINE-2]]:23 = #8 |
| // CHECK-NEXT: File 0, [[@LINE-3]]:23 -> [[@LINE-1]]:4 = #8 |
| } |
| |
| #define FOO true |
| |
| // CHECK-LABEL: _Z7ternaryv: |
| void ternary() { |
| true ? FOO : FOO; // CHECK-NOT: Gap,{{.*}}, [[@LINE]]:8 -> |
| } |
| |
| // GH-57377 |
| // CHECK-LABEL: _Z40check_consteval_with_else_discarded_theni: |
| constexpr int check_consteval_with_else_discarded_then(int i) { // CHECK-NEXT: [[@LINE]]:{{[0-9]+}} -> {{[0-9]+}}:2 = #0 |
| if consteval { // CHECK-NEXT: Skipped,File 0, [[@LINE]]:3 -> [[@LINE+2]]:10 = 0 |
| i *= 3; |
| } else { // CHECK-NEXT: File 0, [[@LINE]]:10 -> [[@LINE+2]]:4 = #0 |
| i *= 5; |
| } |
| return i; |
| } |
| |
| // GH-57377 |
| // CHECK-LABEL: _Z43check_notconsteval_with_else_discarded_elsei: |
| constexpr int check_notconsteval_with_else_discarded_else(int i) { // CHECK-NEXT: [[@LINE]]:{{[0-9]+}} -> {{[0-9]+}}:2 = #0 |
| if !consteval { // CHECK-NEXT: Skipped,File 0, [[@LINE]]:3 -> [[@LINE]]:17 = 0 |
| i *= 3; |
| } else { // CHECK-NEXT: File 0, [[@LINE-2]]:17 -> [[@LINE]]:4 = #0 |
| i *= 5; // CHECK-NEXT: Skipped,File 0, [[@LINE-1]]:4 -> [[@LINE+1]]:4 = 0 |
| } |
| return i; |
| } |
| |
| // GH-57377 |
| // CHECK-LABEL: _Z32check_consteval_branch_discardedi: |
| constexpr int check_consteval_branch_discarded(int i) { // CHECK-NEXT: [[@LINE]]:{{[0-9]+}} -> {{[0-9]+}}:2 = #0 |
| if consteval { // CHECK-NEXT: Skipped,File 0, [[@LINE]]:3 -> [[@LINE+2]]:4 = 0 |
| i *= 3; |
| } |
| return i; |
| } |
| |
| // GH-57377 |
| // CHECK-LABEL: _Z30check_notconsteval_branch_kepti: |
| constexpr int check_notconsteval_branch_kept(int i) { // CHECK-NEXT: [[@LINE]]:{{[0-9]+}} -> {{[0-9]+}}:2 = #0 |
| if !consteval { // CHECK-NEXT: Skipped,File 0, [[@LINE]]:3 -> [[@LINE]]:17 = 0 |
| i *= 3; // CHECK-NEXT: File 0, [[@LINE-1]]:17 -> [[@LINE+1]]:4 = #0 |
| } |
| return i; |
| } |
| |
| // CHECK-LABEL: _Z32check_macro_consteval_if_skippedi: |
| constexpr int check_macro_consteval_if_skipped(int i) { // CHECK-NEXT: [[@LINE]]:{{[0-9]+}} -> {{[0-9]+}}:2 = #0 |
| #define IF_RUNTIME if !consteval // CHECK-NEXT: Expansion,File 0, [[@LINE+1]]:3 -> [[@LINE+1]]:13 = #0 (Expanded file = 1) |
| IF_RUNTIME { // CHECK-NEXT: Skipped,File 0, [[@LINE]]:3 -> [[@LINE]]:14 = 0 |
| i *= 2; // CHECK-NEXT: File 0, [[@LINE-1]]:14 -> [[@LINE+1]]:4 = #0 |
| } // CHECK-NEXT: File 1, [[@LINE-3]]:20 -> [[@LINE-3]]:33 = #0 |
| return i; |
| } |
| |
| struct false_value { |
| constexpr operator bool() { |
| return false; |
| } |
| }; |
| |
| template <typename> struct dependable_false_value { |
| constexpr operator bool() { |
| return false; |
| } |
| }; |
| |
| // GH-80285 |
| void should_not_crash() { |
| if constexpr (false_value{}) { }; |
| } |
| |
| template <typename> void should_not_crash_dependable() { |
| if constexpr (dependable_false_value<int>{}) { }; |
| } |
| |
| void should_not_crash_with_template_instance() { |
| should_not_crash_dependable<int>(); |
| } |
| |
| void should_not_crash_with_requires_expr() { |
| if constexpr (requires {42;}) { }; |
| } |
| |
| int instantiate_consteval(int i) { |
| i *= check_consteval_with_else_discarded_then(i); |
| i *= check_notconsteval_with_else_discarded_else(i); |
| i *= check_consteval_branch_discarded(i); |
| i *= check_notconsteval_branch_kept(i); |
| i *= check_macro_consteval_if_skipped(i); |
| return i; |
| } |
