File: pcrel-indirect-call.ll

package info (click to toggle)
llvm-toolchain-19 1%3A19.1.7-3
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,998,520 kB
  • sloc: cpp: 6,951,680; ansic: 1,486,157; asm: 913,598; python: 232,024; f90: 80,126; objc: 75,281; lisp: 37,276; pascal: 16,990; sh: 10,009; ml: 5,058; perl: 4,724; awk: 3,523; makefile: 3,167; javascript: 2,504; xml: 892; fortran: 664; cs: 573
file content (30 lines) | stat: -rw-r--r-- 967 bytes parent folder | download | duplicates (12) 
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
 
; RUN: llc -verify-machineinstrs -mtriple=powerpc64le-unknown-linux-gnu \
; RUN:   -mcpu=pwr10 -ppc-asm-full-reg-names < %s | FileCheck %s
; RUN: llc -verify-machineinstrs -target-abi=elfv2 -mtriple=powerpc64-- \
; RUN:   -mcpu=pwr10 -ppc-asm-full-reg-names < %s | FileCheck %s


; The test checks the behavior of PC Relative indirect calls. When using
; PC Relative, TOC save and restore are no longer required. Function pointer
; is passed as a parameter in this test.

; Function Attrs: noinline
define dso_local void @IndirectCallExternFuncPtr(ptr nocapture %ptrfunc) {
; CHECK-LABEL: IndirectCallExternFuncPtr:
; CHECK:       # %bb.0: # %entry
; CHECK-NEXT:    mtctr r3
; CHECK-NEXT:    mr r12, r3
; CHECK-NEXT:    bctr
; CHECK-NEXT:    #TC_RETURNr8 ctr
entry:
  tail call void %ptrfunc()
  ret void
}

define dso_local void @FuncPtrPassAsParam() {
entry:
  tail call void @IndirectCallExternFuncPtr(ptr nonnull @Function)
  ret void
}

declare void @Function()