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llvm-project/clang/test/CodeGenCXX/fastcall.cpp

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Add inreg markers with the x86_fastcallcc calling convention. llvm-svn: 166537
2012-10-24 09:58:58 +08:00
// RUN: %clang_cc1 -triple i386-unknown-unknown -emit-llvm -o - %s | FileCheck %s
void __attribute__((fastcall)) foo1(int &y);
void bar1(int &y) {
Revert "[CodeGenModule] Assume dso_local for -fpic -fno-semantic-interposition" This reverts commit 789a46f2d742e11edaade28cb59a0f4d2a1d770e. Accidentally committed.
2020-02-04 02:09:39 +08:00
// CHECK-LABEL: define void @_Z4bar1Ri
Mark C++ reference parameters as dereferenceable Because references must be initialized using some evaluated expression, they must point to something, and a callee can assume the reference parameter is dereferenceable. Taking advantage of a new attribute just added to LLVM, mark them as such. Because dereferenceability in addrspace(0) implies nonnull in the backend, we don't need both attributes. However, we need to know the size of the object to use the dereferenceable attribute, so for incomplete types we still emit only nonnull. llvm-svn: 213386
2014-07-18 23:52:10 +08:00
// CHECK: call x86_fastcallcc void @_Z4foo1Ri(i32* inreg dereferenceable({{[0-9]+}}) %
Add inreg markers with the x86_fastcallcc calling convention. llvm-svn: 166537
2012-10-24 09:58:58 +08:00
foo1(y);
}
struct S1 {
int x;
S1(const S1 &y);
};
void __attribute__((fastcall)) foo2(S1 a, int b);
void bar2(S1 a, int b) {
Revert "[CodeGenModule] Assume dso_local for -fpic -fno-semantic-interposition" This reverts commit 789a46f2d742e11edaade28cb59a0f4d2a1d770e. Accidentally committed.
2020-02-04 02:09:39 +08:00
// CHECK-LABEL: define void @_Z4bar22S1i
Add inreg markers with the x86_fastcallcc calling convention. llvm-svn: 166537
2012-10-24 09:58:58 +08:00
// CHECK: call x86_fastcallcc void @_Z4foo22S1i(%struct.S1* inreg %{{.*}}, i32 inreg %
foo2(a, b);
}