llvm-project/clang/test/CodeGen/fp-options-to-fast-math-flags.c
John McCall 8a8d703be0 Fix how cc1 command line options are mapped into FP options.
Canonicalize on storing FP options in LangOptions instead of
redundantly in CodeGenOptions.  Incorporate -ffast-math directly
into the values of those LangOptions rather than considering it
separately when building FPOptions.  Build IR attributes from
those options rather than a mix of sources.

We should really simplify the driver/cc1 interaction here and have
the driver pass down options that cc1 directly honors.  That can
happen in a follow-up, though.

Patch by Michele Scandale!
https://reviews.llvm.org/D80315
2020-06-01 22:00:30 -04:00

43 lines
2.5 KiB
C

// RUN: %clang_cc1 -triple x86_64-unknown-unknown -emit-llvm -o - %s | FileCheck -check-prefix CHECK-PRECISE %s
// RUN: %clang_cc1 -triple x86_64-unknown-unknown -menable-no-nans -emit-llvm -o - %s | FileCheck -check-prefix CHECK-NO-NANS %s
// RUN: %clang_cc1 -triple x86_64-unknown-unknown -menable-no-infs -emit-llvm -o - %s | FileCheck -check-prefix CHECK-NO-INFS %s
// RUN: %clang_cc1 -triple x86_64-unknown-unknown -ffinite-math-only -emit-llvm -o - %s | FileCheck -check-prefix CHECK-FINITE %s
// RUN: %clang_cc1 -triple x86_64-unknown-unknown -fno-signed-zeros -emit-llvm -o - %s | FileCheck -check-prefix CHECK-NO-SIGNED-ZEROS %s
// RUN: %clang_cc1 -triple x86_64-unknown-unknown -mreassociate -emit-llvm -o - %s | FileCheck -check-prefix CHECK-REASSOC %s
// RUN: %clang_cc1 -triple x86_64-unknown-unknown -freciprocal-math -emit-llvm -o - %s | FileCheck -check-prefix CHECK-RECIP %s
// RUN: %clang_cc1 -triple x86_64-unknown-unknown -menable-unsafe-fp-math -emit-llvm -o - %s | FileCheck -check-prefix CHECK-UNSAFE %s
// RUN: %clang_cc1 -triple x86_64-unknown-unknown -ffast-math -emit-llvm -o - %s | FileCheck -check-prefix CHECK-FAST %s
float fn(float);
float test(float a) {
return a + fn(a);
}
// CHECK-PRECISE: [[CALL_RES:%.+]] = call float @fn(float {{%.+}})
// CHECK-PRECISE: {{%.+}} = fadd float {{%.+}}, [[CALL_RES]]
// CHECK-NO-NANS: [[CALL_RES:%.+]] = call nnan float @fn(float {{%.+}})
// CHECK-NO-NANS: {{%.+}} = fadd nnan float {{%.+}}, [[CALL_RES]]
// CHECK-NO-INFS: [[CALL_RES:%.+]] = call ninf float @fn(float {{%.+}})
// CHECK-NO-INFS: {{%.+}} = fadd ninf float {{%.+}}, [[CALL_RES]]
// CHECK-FINITE: [[CALL_RES:%.+]] = call nnan ninf float @fn(float {{%.+}})
// CHECK-FINITE: {{%.+}} = fadd nnan ninf float {{%.+}}, [[CALL_RES]]
// CHECK-NO-SIGNED-ZEROS: [[CALL_RES:%.+]] = call nsz float @fn(float {{%.+}})
// CHECK-NO-SIGNED-ZEROS: {{%.+}} = fadd nsz float {{%.+}}, [[CALL_RES]]
// CHECK-REASSOC: [[CALL_RES:%.+]] = call reassoc float @fn(float {{%.+}})
// CHECK-REASSOC: {{%.+}} = fadd reassoc float {{%.+}}, [[CALL_RES]]
// CHECK-RECIP: [[CALL_RES:%.+]] = call arcp float @fn(float {{%.+}})
// CHECK-RECIP: {{%.+}} = fadd arcp float {{%.+}}, [[CALL_RES]]
// CHECK-UNSAFE: [[CALL_RES:%.+]] = call reassoc nsz arcp afn float @fn(float {{%.+}})
// CHECK-UNSAFE: {{%.+}} = fadd reassoc nsz arcp afn float {{%.+}}, [[CALL_RES]]
// CHECK-FAST: [[CALL_RES:%.+]] = call reassoc nnan ninf nsz arcp afn float @fn(float {{%.+}})
// CHECK-FAST: {{%.+}} = fadd reassoc nnan ninf nsz arcp afn float {{%.+}}, [[CALL_RES]]