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flag. But the driver checks for 'fno-math-errno' before passing 'funsafe-math-optimizations' to the FE. In GCC, the option 'funsafe-math-optimizations' doesn't affect the 'fmath-errno' flag. This patch aligns clang with GCC. '-ffast-math' sets the FPContract to 'fast'. But 'funsafe-math-optimizations' the driver doesn't consider the FPContract when handling the option. Unfortunately there are places in the BE that interpret unsafe math mode as allowing FMA. This patch makes -ffast-math' and 'funsafe-math-optimizations' behave similarly in regard to the setting of the FPContract. Differential Revision: https://reviews.llvm.org/D137578
72 lines
2.9 KiB
Common Lisp
72 lines
2.9 KiB
Common Lisp
// RUN: %clang_cc1 %s -emit-llvm -o - | FileCheck %s -check-prefix=NORMAL
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// RUN: %clang_cc1 %s -emit-llvm -cl-fast-relaxed-math -o - | FileCheck %s -check-prefix=FAST
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// RUN: %clang_cc1 %s -emit-llvm -cl-finite-math-only -o - | FileCheck %s -check-prefix=FINITE
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// RUN: %clang_cc1 %s -emit-llvm -cl-unsafe-math-optimizations -o - | FileCheck %s -check-prefix=UNSAFE
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// RUN: %clang_cc1 %s -emit-llvm -cl-mad-enable -o - | FileCheck %s -check-prefix=MAD
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// RUN: %clang_cc1 %s -emit-llvm -cl-no-signed-zeros -o - | FileCheck %s -check-prefix=NOSIGNED
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// Check the fp options are correct with PCH.
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// RUN: %clang_cc1 %s -DGEN_PCH=1 -finclude-default-header -triple spir-unknown-unknown -emit-pch -o %t.pch
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// RUN: %clang_cc1 %s -include-pch %t.pch -fno-validate-pch -emit-llvm -o - | FileCheck %s -check-prefix=NORMAL
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// RUN: %clang_cc1 %s -include-pch %t.pch -fno-validate-pch -emit-llvm -cl-fast-relaxed-math -o - | FileCheck %s -check-prefix=FAST
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// RUN: %clang_cc1 %s -include-pch %t.pch -fno-validate-pch -emit-llvm -cl-finite-math-only -o - | FileCheck %s -check-prefix=FINITE
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// RUN: %clang_cc1 %s -include-pch %t.pch -fno-validate-pch -emit-llvm -cl-unsafe-math-optimizations -o - | FileCheck %s -check-prefix=UNSAFE
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// RUN: %clang_cc1 %s -include-pch %t.pch -fno-validate-pch -emit-llvm -cl-mad-enable -o - | FileCheck %s -check-prefix=MAD
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// RUN: %clang_cc1 %s -include-pch %t.pch -fno-validate-pch -emit-llvm -cl-no-signed-zeros -o - | FileCheck %s -check-prefix=NOSIGNED
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#if !GEN_PCH
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float spscalardiv(float a, float b) {
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// CHECK: @spscalardiv(
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// NORMAL: fdiv float
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// FAST: fdiv fast float
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// FINITE: fdiv nnan ninf float
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// UNSAFE: fdiv reassoc nsz arcp contract afn float
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// MAD: fdiv float
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// NOSIGNED: fdiv nsz float
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return a / b;
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}
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// CHECK: attributes
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// NORMAL-NOT: "less-precise-fpmad"
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// NORMAL-NOT: "no-infs-fp-math"
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// NORMAL-NOT: "no-nans-fp-math"
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// NORMAL-NOT: "no-signed-zeros-fp-math"
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// NORMAL-NOT: "unsafe-fp-math"
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// FAST: "less-precise-fpmad"="true"
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// FAST: "no-infs-fp-math"="true"
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// FAST: "no-nans-fp-math"="true"
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// FAST: "no-signed-zeros-fp-math"="true"
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// FAST: "unsafe-fp-math"="true"
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// FINITE-NOT: "less-precise-fpmad"
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// FINITE: "no-infs-fp-math"="true"
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// FINITE: "no-nans-fp-math"="true"
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// FINITE-NOT: "no-signed-zeros-fp-math"
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// FINITE-NOT: "unsafe-fp-math"
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// UNSAFE: "less-precise-fpmad"="true"
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// UNSAFE-NOT: "no-infs-fp-math"
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// UNSAFE-NOT: "no-nans-fp-math"
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// UNSAFE: "no-signed-zeros-fp-math"="true"
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// UNSAFE: "unsafe-fp-math"="true"
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// MAD: "less-precise-fpmad"="true"
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// MAD-NOT: "no-infs-fp-math"
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// MAD-NOT: "no-nans-fp-math"
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// MAD-NOT: "no-signed-zeros-fp-math"
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// MAD-NOT: "unsafe-fp-math"
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// NOSIGNED-NOT: "less-precise-fpmad"
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// NOSIGNED-NOT: "no-infs-fp-math"
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// NOSIGNED-NOT: "no-nans-fp-math"
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// NOSIGNED: "no-signed-zeros-fp-math"="true"
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// NOSIGNED-NOT: "unsafe-fp-math"
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#else
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// Undefine this to avoid putting it in the PCH.
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#undef GEN_PCH
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#endif
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