ppc64-func-desc-hoist.ll
1.43 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
40
41
42
43
44
45
; RUN: llc -verify-machineinstrs -mcpu=a2 < %s | FileCheck %s -check-prefix=INVFUNCDESC
; RUN: llc -verify-machineinstrs -mcpu=a2 -mattr=-invariant-function-descriptors < %s | FileCheck %s -check-prefix=NONINVFUNCDESC
target datalayout = "E-m:e-i64:64-n32:64"
target triple = "powerpc64-unknown-linux-gnu"
; Function Attrs: nounwind
define void @bar(void (...)* nocapture %x) #0 {
entry:
%callee.knr.cast = bitcast void (...)* %x to void ()*
br label %for.body
; INVFUNCDESC-LABEL: @bar
; INVFUNCDESC-DAG: ld [[REG1:[0-9]+]], 8(3)
; INVFUNCDESC-DAG: ld [[REG2:[0-9]+]], 16(3)
; INVFUNCDESC-DAG: ld [[REG3:[0-9]+]], 0(3)
; INVFUNCDESC: %for.body
; INVFUNCDESC-DAG: mtctr [[REG3]]
; INVFUNCDESC-DAG: mr 11, [[REG2]]
; INVFUNCDESC-DAG: mr 2, [[REG1]]
; INVFUNCDESC: bctrl
; INVFUNCDESC-NEXT: ld 2, 40(1)
; NONINVFUNCDESC-LABEL: @bar
; NONINVFUNCDESC: %for.body
; NONINVFUNCDESC-DAG: ld 3, 0(30)
; NONINVFUNCDESC-DAG: ld 11, 16(30)
; NONINVFUNCDESC-DAG: ld 2, 8(30)
; NONINVFUNCDESC: mtctr 3
; NONINVFUNCDESC: bctrl
; NONINVFUNCDESC-NEXT: ld 2, 40(1)
for.body: ; preds = %for.body, %entry
%i.02 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
tail call void %callee.knr.cast() #0
%inc = add nuw nsw i32 %i.02, 1
%exitcond = icmp eq i32 %inc, 1600000000
br i1 %exitcond, label %for.end, label %for.body
for.end: ; preds = %for.body
ret void
}
attributes #0 = { nounwind }