1 files changed, 23 insertions, 0 deletions
diff --git a/clang/test/CodeGen/fpconstrained.c b/clang/test/CodeGen/fpconstrained.c
new file mode 100644
index 00000000000..b99e49fcfc6
--- /dev/null
+++ b/clang/test/CodeGen/fpconstrained.c
@@ -0,0 +1,23 @@
+// 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=FAST
+// 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 %0, float %1, metadata !"round.tonearest", metadata !"fpexcept.maytrap")
+  // EXCEPT: llvm.experimental.constrained.fadd.f32(float %0, float %1, metadata !"round.tonearest", metadata !"fpexcept.strict")
+  // FPMODELSTRICT: llvm.experimental.constrained.fadd.f32(float %0, float %1, metadata !"round.dynamic", metadata !"fpexcept.strict")
+  // STRICTEXCEPT: llvm.experimental.constrained.fadd.f32(float %0, float %1, metadata !"round.dynamic", metadata !"fpexcept.strict")
+  // STRICTNOEXCEPT: llvm.experimental.constrained.fadd.f32(float %0, float %1, metadata !"round.dynamic", metadata !"fpexcept.ignore")
+  // PRECISE: fadd contract float %0, %1
+  // FAST: fadd fast
+  f0 = f1 + f2;
+
+  // CHECK: ret
+}