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TheRock/compiler/amd-llvm/llvm/test/CodeGen/X86/sibcall-win64.ll
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

67 lines
1.5 KiB
LLVM

; RUN: llc < %s -mtriple=x86_64-pc-linux | FileCheck %s
declare dso_local win64cc void @win64_callee(i32)
declare dso_local win64cc ptr @win64_indirect()
declare dso_local win64cc void @win64_other(i32)
declare dso_local void @sysv_callee(i32)
declare dso_local ptr @sysv_indirect()
declare dso_local void @sysv_other(i32)
define void @sysv_caller(i32 %p1) {
entry:
tail call win64cc void @win64_callee(i32 %p1)
ret void
}
; CHECK-LABEL: sysv_caller:
; CHECK: subq $40, %rsp
; CHECK: callq win64_callee
; CHECK: addq $40, %rsp
; CHECK: retq
define win64cc void @win64_caller(i32 %p1) {
entry:
tail call void @sysv_callee(i32 %p1)
ret void
}
; CHECK-LABEL: win64_caller:
; CHECK: callq sysv_callee
; CHECK: retq
define void @sysv_matched(i32 %p1) {
tail call void @sysv_callee(i32 %p1)
ret void
}
; CHECK-LABEL: sysv_matched:
; CHECK: jmp sysv_callee # TAILCALL
define win64cc void @win64_matched(i32 %p1) {
tail call win64cc void @win64_callee(i32 %p1)
ret void
}
; CHECK-LABEL: win64_matched:
; CHECK: jmp win64_callee # TAILCALL
define win64cc void @win64_indirect_caller(i32 %p1) {
%1 = call win64cc ptr @win64_indirect()
call win64cc void @win64_other(i32 0)
tail call win64cc void %1(i32 %p1)
ret void
}
; CHECK-LABEL: win64_indirect_caller:
; CHECK: jmpq *%{{rax|rcx|rdx|r8|r9|r11}} # TAILCALL
define void @sysv_indirect_caller(i32 %p1) {
%1 = call ptr @sysv_indirect()
call void @sysv_other(i32 0)
tail call void %1(i32 %p1)
ret void
}
; CHECK-LABEL: sysv_indirect_caller:
; CHECK: jmpq *%{{rax|rcx|rdx|rsi|rdi|r8|r9|r11}} # TAILCALL