[DAGCombiner] Add target hook function to decide folding (mul (add x, c1), c2)
[llvm-project.git] / llvm / test / Transforms / PGOProfile / indirect_call_promotion_musttail.ll
blob6dea060d6c263bf04999986eeba990954e4b8ddb
1 ; RUN: opt < %s -pgo-icall-prom -S | FileCheck %s --check-prefix=ICALL-PROM
2 ; RUN: opt < %s -passes=pgo-icall-prom -S | FileCheck %s --check-prefix=ICALL-PROM
4 target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
5 target triple = "x86_64-unknown-linux-gnu"
7 @foo = common global i32* ()* null, align 8
9 define i32* @func1() {
10   ret i32* null
13 define i32* @func2() {
14   ret i32* null
17 define i32* @func3() {
18   ret i32* null
21 define i32* @func4() {
22   ret i32* null
25 define i32* @bar() {
26 entry:
27   %tmp = load i32* ()*, i32* ()** @foo, align 8
28 ; ICALL-PROM:   [[CMP1:%[0-9]+]] = icmp eq i32* ()* %tmp, @func4
29 ; ICALL-PROM:   br i1 [[CMP1]], label %if.true.direct_targ, label %[[L1:[0-9]+]], !prof [[BRANCH_WEIGHT1:![0-9]+]]
30 ; ICALL-PROM: if.true.direct_targ:
31 ; ICALL-PROM:   [[DIRCALL_RET1:%[0-9]+]] = musttail call i32* @func4()
32 ; ICALL-PROM:   ret i32* [[DIRCALL_RET1]]
33 ; ICALL-PROM: [[L1]]:
34 ; ICALL-PROM:   [[CMP2:%[0-9]+]] = icmp eq i32* ()* %tmp, @func2
35 ; ICALL-PROM:   br i1 [[CMP2]], label %if.true.direct_targ1, label %[[L2:[0-9]+]], !prof [[BRANCH_WEIGHT2:![0-9]+]]
36 ; ICALL-PROM: if.true.direct_targ1:
37 ; ICALL-PROM:   [[DIRCALL_RET2:%[0-9]+]] = musttail call i32* @func2()
38 ; ICALL-PROM:   ret i32* [[DIRCALL_RET2]]
39 ; ICALL-PROM: [[L2]]:
40 ; ICALL-PROM:   [[CMP3:%[0-9]+]] = icmp eq i32* ()* %tmp, @func3
41 ; ICALL-PROM:   br i1 [[CMP3]], label %if.true.direct_targ2, label %[[L3:[0-9]+]], !prof [[BRANCH_WEIGHT3:![0-9]+]]
42 ; ICALL-PROM: if.true.direct_targ2:
43 ; ICALL-PROM:   [[DIRCALL_RET3:%[0-9]+]] = musttail call i32* @func3()
44 ; ICALL-PROM:   ret i32* [[DIRCALL_RET3]]
45 ; ICALL-PROM: [[L3]]:
46 ; ICALL-PROM:   %call = musttail call i32* %tmp()
47 ; ICALL-PROM:   ret i32* %call
48   %call = musttail call i32* %tmp(), !prof !1
49   ret i32* %call
52 define i64* @bar2() {
53 entry:
54   %tmp = load i32* ()*, i32* ()** @foo, align 8
55 ; ICALL-PROM:   [[CMP1:%[0-9]+]] = icmp eq i32* ()* %tmp, @func4
56 ; ICALL-PROM:   br i1 [[CMP1]], label %if.true.direct_targ, label %[[L4:[0-9]+]], !prof [[BRANCH_WEIGHT4:![0-9]+]]
57 ; ICALL-PROM: if.true.direct_targ:
58 ; ICALL-PROM:   [[DIRCALL_RET1:%[0-9]+]] = musttail call i32* @func4()
59 ; ICALL-PROM:   [[DIRCALL_RET2:%[0-9]+]] = bitcast i32* [[DIRCALL_RET1]] to i64*
60 ; ICALL-PROM:   ret i64* [[DIRCALL_RET2]]
61 ; ICALL-PROM: [[L4]]:
62 ; ICALL-PROM:   %call = musttail call i32* %tmp()
63 ; ICALL-PROM:   %rv = bitcast i32* %call to i64*
64 ; ICALL-PROM:   ret i64* %rv
65   %call = musttail call i32* %tmp(), !prof !2
66   %rv = bitcast i32* %call to i64*
67   ret i64* %rv
70 !1 = !{!"VP", i32 0, i64 1600, i64 7651369219802541373, i64 1030, i64 -4377547752858689819, i64 410, i64 -6929281286627296573, i64 150, i64 -2545542355363006406, i64 10}
71 !2 = !{!"VP", i32 0, i64 100, i64 7651369219802541373, i64 100}
73 ; ICALL-PROM: [[BRANCH_WEIGHT1]] = !{!"branch_weights", i32 1030, i32 570}
74 ; ICALL-PROM: [[BRANCH_WEIGHT2]] = !{!"branch_weights", i32 410, i32 160}
75 ; ICALL-PROM: [[BRANCH_WEIGHT3]] = !{!"branch_weights", i32 150, i32 10}
76 ; ICALL-PROM: [[BRANCH_WEIGHT4]] = !{!"branch_weights", i32 100, i32 0}