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; RUN: llc -mtriple=x86_64-pc-windows-msvc < %s | FileCheck %s
; CHECK-LABEL: uses_rax:
; CHECK: .Limpcall0:
; CHECK-NEXT: jmpq *%rax
define void @uses_rax(i32 %x) {
entry:
switch i32 %x, label %sw.epilog [
i32 0, label %sw.bb
i32 1, label %sw.bb1
i32 2, label %sw.bb2
i32 3, label %sw.bb3
]
sw.bb:
tail call void @g(i32 0) #2
br label %sw.epilog
sw.bb1:
tail call void @g(i32 1) #2
br label %sw.epilog
sw.bb2:
tail call void @g(i32 2) #2
br label %sw.epilog
sw.bb3:
tail call void @g(i32 3) #2
br label %sw.epilog
sw.epilog:
tail call void @g(i32 10) #2
ret void
}
; CHECK-LABEL: uses_rcx:
; CHECK: .Limpcall1:
; CHECK-NEXT: jmpq *%rcx
define void @uses_rcx(i32 %x) {
entry:
switch i32 %x, label %sw.epilog [
i32 10, label %sw.bb
i32 11, label %sw.bb1
i32 12, label %sw.bb2
i32 13, label %sw.bb3
]
sw.bb:
tail call void @g(i32 0) #2
br label %sw.epilog
sw.bb1:
tail call void @g(i32 1) #2
br label %sw.epilog
sw.bb2:
tail call void @g(i32 2) #2
br label %sw.epilog
sw.bb3:
tail call void @g(i32 3) #2
br label %sw.epilog
sw.epilog:
tail call void @g(i32 10) #2
ret void
}
declare void @g(i32)
; CHECK-LABEL: .section .retplne,"yi"
; CHECK-NEXT: .asciz "RetpolineV1"
; CHECK-NEXT: .long 24
; CHECK-NEXT: .secnum .text
; CHECK-NEXT: .long 16
; CHECK-NEXT: .secoffset .Limpcall0
; CHECK-NEXT: .long 17
; CHECK-NEXT: .secoffset .Limpcall1
!llvm.module.flags = !{!0}
!0 = !{i32 1, !"import-call-optimization", i32 1}
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