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fe89669b77
emitted only when errno is not in use. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55797 91177308-0d34-0410-b5e6-96231b3b80d8
15 lines
541 B
C
15 lines
541 B
C
// llvm-gcc -O1+ should run simplify libcalls, O0 shouldn't
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// and -fno-builtins shouldn't.
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// -fno-math-errno should emit an llvm intrinsic, -fmath-errno should not.
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// RUN: %llvmgcc %s -S -fno-math-errno -emit-llvm -O0 -o - | grep {call.*exp2\\.f64}
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// RUN: %llvmgcc %s -S -fmath-errno -emit-llvm -O0 -o - | grep {call.*exp2}
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// RUN: %llvmgcc %s -S -emit-llvm -O1 -o - | grep {call.*ldexp}
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// RUN: %llvmgcc %s -S -emit-llvm -O3 -fno-builtin -o - | grep {call.*exp2}
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double exp2(double);
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double t4(unsigned char x) {
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return exp2(x);
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}
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