5f2cf3a21f
When running `clang -E -Ofast` on macOS, the `__FLT_EVAL_METHOD__` macro is `0`, which causes the following typedef to be emitted into the preprocessed source: `typedef float float_t`. However, when running `clang -c -Ofast`, `__FLT_EVAL_METHOD__` is `-1`, and `typedef long double float_t` is emitted. This causes build errors for certain projects, which are not reproducible when compiling from preprocessed source. The issue is that `__FLT_EVAL_METHOD__` is configured in `Sema::Sema` which is not executed when running in `-E` mode. This change moves that logic into the preprocessor initialization method, which is invoked correctly in `-E` mode. rdar://96134605 rdar://92748429 Differential Revision: https://reviews.llvm.org/D128814
89 lines
2.5 KiB
C++
89 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-MINUS-ONE -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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// CHECK-MINUS-ONE: #define Name "MinusOne"
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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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