File: thumb_indirect_calls.ll

package info (click to toggle)
llvm-toolchain-20 1%3A20.1.8-1
  • links: PTS, VCS
  • area: main
  • in suites: experimental
  • size: 2,111,696 kB
  • sloc: cpp: 7,438,781; ansic: 1,393,871; asm: 1,012,926; python: 241,771; f90: 86,635; objc: 75,411; lisp: 42,144; pascal: 17,286; sh: 8,596; ml: 5,082; perl: 4,730; makefile: 3,591; awk: 3,523; javascript: 2,251; xml: 892; fortran: 672
file content (39 lines) | stat: -rw-r--r-- 1,036 bytes parent folder | download | duplicates (17) 
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
 
; RUN: llc -mtriple=thumbv4t-eabi %s -o - | FileCheck --check-prefix=CHECK -check-prefix=CHECK-V4T %s
; RUN: llc -mtriple=thumbv5t-eabi %s -o - | FileCheck --check-prefix=CHECK -check-prefix=CHECK-V5T %s

@f = common global ptr null, align 4

; CHECK-LABEL: foo:
define void @foo(i32 %x) {
entry:
  %0 = load ptr, ptr @f, align 4
  tail call void %0(i32 %x)
  ret void

; CHECK: ldr [[TMP:r[0-3]]], [[F:\.[A-Z0-9_]+]]
; CHECK: ldr [[CALLEE:r[0-3]]], [[[TMP]]]

; CHECK-V4T-NOT: blx
; CHECK-V4T: bl [[INDIRECT_PAD:\.Ltmp[0-9]+]]
; CHECK-V4T: [[F]]:
; CHECK-V4T: [[INDIRECT_PAD]]:
; CHECK-V4T-NEXT: bx [[CALLEE]]
; CHECK-V5T: blx [[CALLEE]]
}

; CHECK-LABEL: bar:
define void @bar(ptr nocapture %g, i32 %x, ptr nocapture %h) {
entry:
  tail call void %g(i32 %x)
  tail call void %h(i32 %x)
  ret void

; CHECK-V4T: bl [[INDIRECT_PAD1:\.Ltmp[0-9]+]]
; CHECK-V4T: bl [[INDIRECT_PAD2:\.Ltmp[0-9]+]]
; CHECK-V4T: [[INDIRECT_PAD1]]:
; CHECK-V4T-NEXT: bx
; CHECK-V4T: [[INDIRECT_PAD2]]:
; CHECK-V4T-NEXT: bx
; CHECK-V5T: blx
; CHECK-V5T: blx
}