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2f1264260b
Setting __FLT_EVAL_METHOD__ to -1 with fast-math will set __GLIBC_FLT_EVAL_METHOD to 2 and long double ends up being used for float_t and double_t. This creates some ABI breakage with various C libraries. See details here: https://github.com/llvm/llvm-project/issues/60781 This reverts commit bbf0d1932a3c1be970ed8a580e51edf571b80fd5.
88 lines
2.5 KiB
C++
88 lines
2.5 KiB
C++
// RUN: %clang_cc1 -E -dM -triple=x86_64-none-none %s -o - \
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// RUN: | FileCheck %s -strict-whitespace
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// RUN: %clang_cc1 -E -dM -triple=x86_64-none-none -target-feature -sse \
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// RUN: %s -o - | FileCheck %s -check-prefix=EXT -strict-whitespace
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// RUN: %clang_cc1 -E -dM -triple=arm64e-apple-ios -target-feature -sse \
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// RUN: %s -o - | FileCheck %s -strict-whitespace
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// RUN: %clang_cc1 -E -dM -triple=arm64e-apple-ios -target-feature +sse \
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// RUN: %s -o - | FileCheck %s -strict-whitespace
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// RUN: %clang_cc1 -E -dM -triple=arm64_32-apple-ios %s -o - \
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// RUN: | FileCheck %s -strict-whitespace
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// RUN: %clang_cc1 -E -dM -triple=arm64_32-apple-ios -target-feature -sse \
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// RUN: %s -o - | FileCheck %s -strict-whitespace
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// RUN: %clang_cc1 -E -dM -triple=x86_64-apple-macos13.0 -ffast-math \
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// RUN: %s -o - | FileCheck %s -check-prefix=CHECK -strict-whitespace
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// RUN: %clang_cc1 -E -dM -triple i386-pc-windows -target-cpu pentium4 %s -o - \
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// RUN: | FileCheck %s -strict-whitespace
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// RUN: %clang_cc1 -E -dM -triple i386-pc-windows -target-cpu pentium4 \
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// RUN: -target-feature -sse %s -o - | FileCheck -check-prefix=EXT %s \
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// RUN: -strict-whitespace
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#ifdef __FLT_EVAL_METHOD__
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#if __FLT_EVAL_METHOD__ == 3
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#define __GLIBC_FLT_EVAL_METHOD 2
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#else
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#define __GLIBC_FLT_EVAL_METHOD __FLT_EVAL_METHOD__
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#endif
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#elif defined __x86_64__
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#define __GLIBC_FLT_EVAL_METHOD 0
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#else
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#define __GLIBC_FLT_EVAL_METHOD 2
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#endif
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#if __GLIBC_FLT_EVAL_METHOD == -1
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#define Name "MinusOne"
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#elif __GLIBC_FLT_EVAL_METHOD == 0 || __GLIBC_FLT_EVAL_METHOD == 16
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#define Name "One"
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#elif __GLIBC_FLT_EVAL_METHOD == 1
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#define Name "Two"
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#elif __GLIBC_FLT_EVAL_METHOD == 2
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#define Name "Three"
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#elif __GLIBC_FLT_EVAL_METHOD == 32
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#define Name "Four"
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#elif __GLIBC_FLT_EVAL_METHOD == 33
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#define Name "Five"
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#elif __GLIBC_FLT_EVAL_METHOD == 64
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#define Name "Six"
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#elif __GLIBC_FLT_EVAL_METHOD == 65
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#define Name "Seven"
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#elif __GLIBC_FLT_EVAL_METHOD == 128
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#define Name "Eight"
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#elif __GLIBC_FLT_EVAL_METHOD == 129
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#define Name "Nine"
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#else
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#error "Unknown __GLIBC_FLT_EVAL_METHOD"
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#endif
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int foo() {
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// CHECK: #define Name "One"
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// EXT: #define Name "Three"
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return Name;
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}
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#pragma fp eval_method(double)
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#if __FLT_EVAL_METHOD__ == 3
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#define Val "Unset"
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#elif __FLT_EVAL_METHOD__ == 0
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#define Val "val0"
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#elif __FLT_EVAL_METHOD__ == 1
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#define Val "val1"
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#elif __FLT_EVAL_METHOD__ == 2
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#define Val "val2"
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#endif
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int goo() {
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// CHECK: #define Val "val0"
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// EXT: #define Val "val2"
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return Val;
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}
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