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| author | Stephen Hines <srhines@google.com> | 2014-12-01 14:51:49 -0800 |
|---|---|---|
| committer | Stephen Hines <srhines@google.com> | 2014-12-02 16:08:10 -0800 |
| commit | 37ed9c199ca639565f6ce88105f9e39e898d82d0 (patch) | |
| tree | 8fb36d3910e3ee4c4e1b7422f4f017108efc52f5 /test/CodeGen/X86/vararg-callee-cleanup.ll | |
| parent | d2327b22152ced7bc46dc629fc908959e8a52d03 (diff) | |
| download | external_llvm-37ed9c199ca639565f6ce88105f9e39e898d82d0.zip external_llvm-37ed9c199ca639565f6ce88105f9e39e898d82d0.tar.gz external_llvm-37ed9c199ca639565f6ce88105f9e39e898d82d0.tar.bz2 | |
Update aosp/master LLVM for rebase to r222494.
Change-Id: Ic787f5e0124df789bd26f3f24680f45e678eef2d
Diffstat (limited to 'test/CodeGen/X86/vararg-callee-cleanup.ll')
| -rw-r--r-- | test/CodeGen/X86/vararg-callee-cleanup.ll | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/test/CodeGen/X86/vararg-callee-cleanup.ll b/test/CodeGen/X86/vararg-callee-cleanup.ll new file mode 100644 index 0000000..2dcf319 --- /dev/null +++ b/test/CodeGen/X86/vararg-callee-cleanup.ll @@ -0,0 +1,54 @@ +; RUN: llc -mtriple=i686-pc-windows < %s | FileCheck %s + +target datalayout = "e-m:w-p:32:32-i64:64-f80:32-n8:16:32-S32" + +declare x86_thiscallcc void @thiscall_thunk(i8* %this, ...) +define i32 @call_varargs_thiscall_thunk(i8* %a, i32 %b, i32 %c, i32 %d) { + call x86_thiscallcc void (i8*, ...)* @thiscall_thunk(i8* %a, i32 1, i32 2) + call x86_thiscallcc void (i8*, ...)* @thiscall_thunk(i8* %a, i32 1, i32 2) + %t1 = add i32 %b, %c + %r = add i32 %t1, %d + ret i32 %r +} + +; CHECK: _call_varargs_thiscall_thunk: +; CHECK: calll _thiscall_thunk +; CHECK-NEXT: subl $8, %esp + +; We don't mangle the argument size into variadic callee cleanup functions. + +declare x86_stdcallcc void @stdcall_thunk(i8* %this, ...) +define i32 @call_varargs_stdcall_thunk(i8* %a, i32 %b, i32 %c, i32 %d) { + call x86_stdcallcc void (i8*, ...)* @stdcall_thunk(i8* %a, i32 1, i32 2) + call x86_stdcallcc void (i8*, ...)* @stdcall_thunk(i8* %a, i32 1, i32 2) + %t1 = add i32 %b, %c + %r = add i32 %t1, %d + ret i32 %r +} + +; CHECK: _call_varargs_stdcall_thunk: +; CHECK: calll _stdcall_thunk{{$}} +; CHECK-NEXT: subl $12, %esp + +declare x86_fastcallcc void @fastcall_thunk(i8* %this, ...) +define i32 @call_varargs_fastcall_thunk(i8* %a, i32 %b, i32 %c, i32 %d) { + call x86_fastcallcc void (i8*, ...)* @fastcall_thunk(i8* inreg %a, i32 inreg 1, i32 2) + call x86_fastcallcc void (i8*, ...)* @fastcall_thunk(i8* inreg %a, i32 inreg 1, i32 2) + %t1 = add i32 %b, %c + %r = add i32 %t1, %d + ret i32 %r +} + +; CHECK: _call_varargs_fastcall_thunk: +; CHECK: calll @fastcall_thunk{{$}} +; CHECK-NEXT: subl $4, %esp + +; If you actually return from such a thunk, it will only pop the non-variadic +; portion of the arguments, which is different from what the callee passes. + +define x86_stdcallcc void @varargs_stdcall_return(i32, i32, ...) { + ret void +} + +; CHECK: _varargs_stdcall_return: +; CHECK: retl $8 |