llvm-project/clang/test/CodeGen/fpconstrained.c
Melanie Blower f5360d4bb3 Reapply "Add support for #pragma float_control" with buildbot fixes
Add support for #pragma float_control

Reviewers: rjmccall, erichkeane, sepavloff

Differential Revision: https://reviews.llvm.org/D72841

This reverts commit fce82c0ed310174fe48e2402ac731b6340098389.
2020-05-04 05:51:25 -07:00

25 lines
1.8 KiB
C

// RUN: %clang_cc1 -ftrapping-math -frounding-math -ffp-exception-behavior=strict -emit-llvm -o - %s | FileCheck %s -check-prefix=FPMODELSTRICT
// RUN: %clang_cc1 -ffp-contract=fast -emit-llvm -o - %s | FileCheck %s -check-prefix=PRECISE
// RUN: %clang_cc1 -ffast-math -ffp-contract=fast -emit-llvm -o - %s | FileCheck %s -check-prefix=FAST
// RUN: %clang_cc1 -ffast-math -emit-llvm -o - %s | FileCheck %s -check-prefix=FASTNOCONTRACT
// RUN: %clang_cc1 -ffast-math -ffp-contract=fast -ffp-exception-behavior=ignore -emit-llvm -o - %s | FileCheck %s -check-prefix=FAST
// RUN: %clang_cc1 -ffast-math -ffp-contract=fast -ffp-exception-behavior=strict -emit-llvm -o - %s | FileCheck %s -check-prefix=EXCEPT
// RUN: %clang_cc1 -ffast-math -ffp-contract=fast -ffp-exception-behavior=maytrap -emit-llvm -o - %s | FileCheck %s -check-prefix=MAYTRAP
float f0, f1, f2;
void foo() {
// CHECK-LABEL: define {{.*}}void @foo()
// MAYTRAP: llvm.experimental.constrained.fadd.f32(float %{{.*}}, float %{{.*}}, metadata !"round.tonearest", metadata !"fpexcept.maytrap")
// EXCEPT: llvm.experimental.constrained.fadd.f32(float %{{.*}}, float %{{.*}}, metadata !"round.tonearest", metadata !"fpexcept.strict")
// FPMODELSTRICT: llvm.experimental.constrained.fadd.f32(float %{{.*}}, float %{{.*}}, metadata !"round.dynamic", metadata !"fpexcept.strict")
// STRICTEXCEPT: llvm.experimental.constrained.fadd.f32(float %{{.*}}, float %{{.*}}, metadata !"round.dynamic", metadata !"fpexcept.strict")
// STRICTNOEXCEPT: llvm.experimental.constrained.fadd.f32(float %{{.*}}, float %{{.*}}, metadata !"round.dynamic", metadata !"fpexcept.ignore")
// PRECISE: fadd contract float %{{.*}}, %{{.*}}
// FAST: fadd fast
// FASTNOCONTRACT: fadd reassoc nnan ninf nsz arcp afn float
f0 = f1 + f2;
// CHECK: ret
}