69 lines
1.9 KiB
C++
69 lines
1.9 KiB
C++
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// RUN: %clang_cc1 -triple x86_64-linux-gnu -emit-llvm -o - %s | FileCheck %s
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// RUN: %clang_cc1 -triple x86_64-linux-gnu -emit-llvm -fdelayed-template-parsing -o - %s | FileCheck %s
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template <typename T>
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T templ_01(T x, T y) {
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#pragma STDC FENV_ACCESS ON
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return x + y;
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}
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float func_01(float x, float y) {
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return templ_01(x, y);
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}
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// CHECK-LABEL: define {{.*}} @_Z8templ_01IfET_S0_S0_
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// CHECK-SAME: (float noundef %{{.*}}, float noundef %{{.*}}) #[[ATTR01:[0-9]+]]{{.*}} {
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// CHECK: call float @llvm.experimental.constrained.fadd.f32
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template <typename Ty>
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Ty templ_02(Ty x, Ty y) {
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return x + y;
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}
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#pragma STDC FENV_ROUND FE_UPWARD
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template <typename Ty>
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Ty templ_03(Ty x, Ty y) {
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return x - y;
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}
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#pragma STDC FENV_ROUND FE_TONEAREST
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float func_02(float x, float y) {
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return templ_02(x, y);
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}
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// CHECK-LABEL: define {{.*}} float @_Z8templ_02IfET_S0_S0_
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// CHECK: %add = fadd float %0, %1
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float func_03(float x, float y) {
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return templ_03(x, y);
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}
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// CHECK-LABEL: define {{.*}} float @_Z8templ_03IfET_S0_S0_
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// CHECK: call float @llvm.experimental.constrained.fsub.f32({{.*}}, metadata !"round.upward", metadata !"fpexcept.ignore")
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#pragma STDC FENV_ROUND FE_TONEAREST
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namespace PR63542 {
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template <class Compare> float stable_sort(float x, Compare) {
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float result = x + x;
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stable_sort(x, int());
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return result;
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}
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float linkage_wrap() { return stable_sort(0.0, 1); }
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}
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// CHECK-LABEL: define {{.*}} float @_ZN7PR6354211stable_sortIiEEffT_(
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// CHECK: fadd float
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// These pragmas set non-default FP environment before delayed parsing occurs.
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// It is used to check that the parsing uses FP options defined by command line
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// options or by pragma before the template definition but not by these pragmas.
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#pragma STDC FENV_ROUND FE_TOWARDZERO
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#pragma STDC FENV_ACCESS ON
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// CHECK: attributes #[[ATTR01]] = { {{.*}}strictfp
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