llvm-mirror/test/CodeGen/X86/tailcall-64.ll

; RUN: llc < %s | FileCheck %s
target datalayout = "e-p:64:64:64-S128-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f16:16:16-f32:32:32-f64:64:64-f128:128:128-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
target triple = "x86_64-apple-darwin11.4.0"

declare i64 @testi()

define i64 @test_trivial() {
 %A = tail call i64 @testi()
 ret i64 %A
}
; CHECK: test_trivial:
; CHECK: jmp	_testi                  ## TAILCALL


define i64 @test_noop_bitcast() {
 %A = tail call i64 @testi()
 %B = bitcast i64 %A to i64
 ret i64 %B
}
; CHECK: test_noop_bitcast:
; CHECK: jmp	_testi                  ## TAILCALL


; Tail call shouldn't be blocked by no-op inttoptr.
define i8* @test_inttoptr() {
  %A = tail call i64 @testi()
  %B = inttoptr i64 %A to i8*
  ret i8* %B
}

; CHECK: test_inttoptr:
; CHECK: jmp	_testi                  ## TAILCALL


declare <4 x float> @testv()

define <4 x i32> @test_vectorbitcast() {
  %A = tail call <4 x float> @testv()
  %B = bitcast <4 x float> %A to <4 x i32>
  ret <4 x i32> %B
}
; CHECK: test_vectorbitcast:
; CHECK: jmp	_testv                  ## TAILCALL


declare { i64, i64 } @testp()

define {i64, i64} @test_pair_trivial() {
  %A = tail call { i64, i64} @testp()
  ret { i64, i64} %A
}
; CHECK: test_pair_trivial:
; CHECK: jmp	_testp                  ## TAILCALL



define {i64, i64} @test_pair_trivial_extract() {
  %A = tail call { i64, i64} @testp()
  %x = extractvalue { i64, i64} %A, 0
  %y = extractvalue { i64, i64} %A, 1
  
  %b = insertvalue {i64, i64} undef, i64 %x, 0
  %c = insertvalue {i64, i64} %b, i64 %y, 1
  
  ret { i64, i64} %c
}

; CHECK: test_pair_trivial_extract:
; CHECK: jmp	_testp                  ## TAILCALL

define {i8*, i64} @test_pair_conv_extract() {
  %A = tail call { i64, i64} @testp()
  %x = extractvalue { i64, i64} %A, 0
  %y = extractvalue { i64, i64} %A, 1
  
  %x1 = inttoptr i64 %x to i8*
  
  %b = insertvalue {i8*, i64} undef, i8* %x1, 0
  %c = insertvalue {i8*, i64} %b, i64 %y, 1
  
  ret { i8*, i64} %c
}

; CHECK: test_pair_conv_extract:
; CHECK: jmp	_testp                  ## TAILCALL



; PR13006
define { i64, i64 } @crash(i8* %this) {
  %c = tail call { i64, i64 } @testp()
  %mrv7 = insertvalue { i64, i64 } %c, i64 undef, 1
  ret { i64, i64 } %mrv7
}