thumb_indirect_calls.ll
1.06 KB
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 void (i32)* null, align 4
; CHECK-LABEL: foo:
define void @foo(i32 %x) {
entry:
%0 = load void (i32)*, void (i32)** @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(void (i32)* nocapture %g, i32 %x, void (i32)* 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
}