File: byval.ll

package info (click to toggle)
llvm-toolchain-16 1%3A16.0.6-15~deb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,634,792 kB
  • sloc: cpp: 6,179,261; ansic: 1,216,205; asm: 741,319; python: 196,614; objc: 75,325; f90: 49,640; lisp: 32,396; pascal: 12,286; sh: 9,394; perl: 7,442; ml: 5,494; awk: 3,523; makefile: 2,723; javascript: 1,206; xml: 886; fortran: 581; cs: 573
file content (41 lines) | stat: -rw-r--r-- 1,194 bytes parent folder | download | duplicates (2)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -verify-machineinstrs < %s | FileCheck %s

target datalayout = "e-m:e-i64:64-n32:64-S128-v256:256:256-v512:512:512"
target triple = "powerpc64le-unknown-linux-gnu"

%struct = type { [4 x i32], [20 x i8] }

declare dso_local i32 @foo1(ptr byval(%struct) %var)
declare dso_local void @foo(ptr %var)

; check that 36bytes byval parameter is passed all in registers.

define dso_local i32 @bar() {
; CHECK-LABEL: bar:
; CHECK:       # %bb.0: # %entry
; CHECK-NEXT:    mflr 0
; CHECK-NEXT:    stdu 1, -80(1)
; CHECK-NEXT:    std 0, 96(1)
; CHECK-NEXT:    .cfi_def_cfa_offset 80
; CHECK-NEXT:    .cfi_offset lr, 16
; CHECK-NEXT:    addi 3, 1, 40
; CHECK-NEXT:    bl foo
; CHECK-NEXT:    nop
; CHECK-NEXT:    lwz 7, 72(1)
; CHECK-NEXT:    ld 6, 64(1)
; CHECK-NEXT:    ld 5, 56(1)
; CHECK-NEXT:    ld 4, 48(1)
; CHECK-NEXT:    ld 3, 40(1)
; CHECK-NEXT:    bl foo1
; CHECK-NEXT:    nop
; CHECK-NEXT:    addi 1, 1, 80
; CHECK-NEXT:    ld 0, 16(1)
; CHECK-NEXT:    mtlr 0
; CHECK-NEXT:    blr
entry:
  %x = alloca %struct, align 4
  call void @foo(ptr %x)
  %r = call i32 @foo1(ptr byval(%struct) %x)
  ret i32 %r
}