forked from OSchip/llvm-project
98 lines
2.8 KiB
C++
98 lines
2.8 KiB
C++
// RUN: %clang_cc1 -fexperimental-strict-floating-point \
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// RUN: -triple x86_64-linux-gnu -emit-llvm -o - -verify %s
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//
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// RUN: %clang_cc1 -fexperimental-strict-floating-point \
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// RUN: -triple x86_64-linux-gnu -emit-llvm -o - -verify %s \
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// RUN: -ffp-eval-method=source
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//
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// RUN: %clang_cc1 -fexperimental-strict-floating-point \
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// RUN: -triple x86_64-linux-gnu -emit-llvm -o - -verify %s \
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// RUN: -ffp-eval-method=double
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extern "C" int printf(const char *, ...);
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void foo1() {
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printf("FP: %d\n", __FLT_EVAL_METHOD__);
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}
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void apply_pragma() {
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// expected-note@+1{{#pragma entered here}}
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#pragma clang fp eval_method(double)
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// expected-error@+1{{'__FLT_EVAL_METHOD__' cannot be expanded inside a scope containing '#pragma clang fp eval_method'}}
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printf("FP: %d\n", __FLT_EVAL_METHOD__);
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}
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int foo2() {
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apply_pragma();
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return 0;
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}
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void apply_pragma_with_wrong_value() {
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// expected-error@+1{{unexpected argument 'value' to '#pragma clang fp eval_method'; expected 'source', 'double' or 'extended'}}
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#pragma clang fp eval_method(value)
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}
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int foo3() {
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apply_pragma_with_wrong_value();
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return 0;
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}
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void foo() {
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auto a = __FLT_EVAL_METHOD__;
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{
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// expected-note@+1{{#pragma entered here}}
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#pragma clang fp eval_method(double)
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// expected-error@+1{{'__FLT_EVAL_METHOD__' cannot be expanded inside a scope containing '#pragma clang fp eval_method'}}
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auto b = __FLT_EVAL_METHOD__;
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}
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auto c = __FLT_EVAL_METHOD__;
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}
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void func() {
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{
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{
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#pragma clang fp eval_method(source)
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}
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int i = __FLT_EVAL_METHOD__; // ok, not in a scope changed by the pragma
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}
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{
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// expected-note@+1{{#pragma entered here}}
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#pragma clang fp eval_method(source)
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// expected-error@+1{{'__FLT_EVAL_METHOD__' cannot be expanded inside a scope containing '#pragma clang fp eval_method'}}
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int i = __FLT_EVAL_METHOD__;
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}
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}
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float G;
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int f(float x, float y, float z) {
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G = x * y + z;
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return __FLT_EVAL_METHOD__;
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}
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int foo(int flag, float x, float y, float z) {
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if (flag) {
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// expected-note@+1{{#pragma entered here}}
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#pragma clang fp eval_method(double)
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G = x + y + z;
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// expected-error@+1{{'__FLT_EVAL_METHOD__' cannot be expanded inside a scope containing '#pragma clang fp eval_method'}}
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return __FLT_EVAL_METHOD__;
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} else {
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// expected-note@+1{{#pragma entered here}}
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#pragma clang fp eval_method(extended)
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G = x + y + z;
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// expected-error@+1{{'__FLT_EVAL_METHOD__' cannot be expanded inside a scope containing '#pragma clang fp eval_method'}}
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return __FLT_EVAL_METHOD__;
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}
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}
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#if __FLT_EVAL_METHOD__ == 1
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#endif
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#pragma clang fp eval_method(source)
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// expected-note@+1{{#pragma entered here}}
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#pragma clang fp eval_method(double)
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// expected-error@+1{{'__FLT_EVAL_METHOD__' cannot be expanded inside a scope containing '#pragma clang fp eval_method'}}
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#if __FLT_EVAL_METHOD__ == 1
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#endif
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