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I.e., pass and return vectors in registers. With the default C calling convention (and the Win64 TargetABI not touching any vectors), vectors are returned in XMM0, but inefficiently passed as ref to hidden copy (automatically by LLVM). Microsoft's vector calling convention, introduced opt-in with VS 2013, additionally puts HFAs and HVAs (Homogeneous Float/Vector Aggregates) into registers, see https://blogs.msdn.microsoft.com/vcblog/2013/07/11/introducing-vector-calling-convention/.
49 lines
1.6 KiB
D
49 lines
1.6 KiB
D
// Test hashing of symbols above hash threshold
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// RUN: %ldc -hash-threshold=90 -g -c -output-ll -of=%t90.ll %s && FileCheck %s --check-prefix HASH90 < %t90.ll
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// RUN: %ldc -hash-threshold=90 -run %s
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// Don't use Phobos functions in this test, because the test hashthreshold is too low for an unhashed libphobos.
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module one.two.three;
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// HASH90-DAG: define{{.*}} @externCfunctions_are_not_hashed_externCfunctions_are_not_hashed_externCfunctions_are_not_hashed
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extern (C) int externCfunctions_are_not_hashed_externCfunctions_are_not_hashed_externCfunctions_are_not_hashed()
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{
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return 95;
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}
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auto s(T)(T t)
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{
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// HASH90-DAG: define{{.*}} @{{(\"\\01_?)?}}_D3one3two5three__T1sTiZQfFNaNbNiNfiZSQBkQBjQBi__TQBfTiZQBlFiZ__T6ResultTiZQk
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// HASH90-DAG: define{{.*}} @{{(\"\\01_?)?}}_D3one3two5three3L1633_182fab6f09ff014d9f4a578edf9609981sZ
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// HASH90-DAG: define{{.*}} @{{(\"\\01_?)?}}_D3one3two5three3L2333_9b5306e5c42722cd2cb93ae6beb422346Result3fooZ
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struct Result(T)
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{
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void foo(){}
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}
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return Result!int();
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}
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auto klass(T)(T t)
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{
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class Result(T)
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{
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// HASH90-DAG: define{{.*}} @{{(\"\\01_?)?}}_D3one3two5three__T5klassTiZQjFiZ__T6ResultTiZQk3fooMFZv
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// HASH90-DAG: define{{.*}} @{{(\"\\01_?)?}}_D3one3two5three3L3433_de737f3d65ae58efa925cffda52cd8da6Result3fooZ
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void foo(){}
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}
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return new Result!int();
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}
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void main()
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{
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assert(
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externCfunctions_are_not_hashed_externCfunctions_are_not_hashed_externCfunctions_are_not_hashed() == 95);
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auto x = 1.s.s.s.s;
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x.foo;
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auto y = 1.klass.klass.klass.klass;
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y.foo;
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}
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