File: fastcc-byval.ll

package info (click to toggle)
llvm-toolchain-11 1%3A11.0.1-2
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 995,808 kB
  • sloc: cpp: 4,767,656; ansic: 760,916; asm: 477,436; python: 170,940; objc: 69,804; lisp: 29,914; sh: 23,855; f90: 18,173; pascal: 7,551; perl: 7,471; ml: 5,603; awk: 3,489; makefile: 2,573; xml: 915; cs: 573; fortran: 503; javascript: 452
file content (24 lines) | stat: -rw-r--r-- 708 bytes parent folder | download | duplicates (14) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
 
; RUN: llc < %s -tailcallopt=false | FileCheck %s
; CHECK: movl 8(%esp), %eax 
; CHECK: movl 8(%esp), %eax 
; CHECK-NOT: movl 8(%esp), %eax 

; PR3122
; rdar://6400815

; byval requires a copy, even with fastcc.

target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
target triple = "i386-apple-darwin9.5"
	%struct.MVT = type { i32 }

define fastcc i32 @bar() nounwind {
	%V = alloca %struct.MVT
	%a = getelementptr %struct.MVT, %struct.MVT* %V, i32 0, i32 0
	store i32 1, i32* %a
	call fastcc void @foo(%struct.MVT* byval %V) nounwind
	%t = load i32, i32* %a
	ret i32 %t
}

declare fastcc void @foo(%struct.MVT* byval)