xref: /llvm-project/llvm/test/CodeGen/PowerPC/jump-table.ll (revision 732f63d96dc5b2cc5a5ad4e1db16bb3b4297fa24)
1; RUN: llc -verify-machineinstrs < %s -mtriple=powerpc64le-unknown-linux-gnu -stop-after=finalize-isel \
2; RUN: | FileCheck %s
3; RUN: llc -verify-machineinstrs < %s -mtriple=powerpc64-ibm-aix -stop-after=finalize-isel \
4; RUN: | FileCheck %s
5; RUN: llc -verify-machineinstrs < %s -mtriple=powerpc-ibm-aix -stop-after=finalize-isel \
6; RUN: | FileCheck %s
7; RUN: llc -verify-machineinstrs < %s -mtriple=powerpc64le-unknown-linux-gnu -stop-after=finalize-isel \
8; RUN: -min-jump-table-entries=4 | FileCheck %s
9; RUN: llc -verify-machineinstrs < %s -mtriple=powerpc64le-unknown-linux-gnu -stop-after=finalize-isel \
10; RUN: -ppc-min-jump-table-entries=4 | FileCheck %s -check-prefix=JT
11
12; JT:   jumpTable:
13; JT-NEXT:   kind:            label-difference32
14; JT-NEXT:   entries:
15; JT-NEXT:     - id:              0
16
17; CHECK-NOT: jumpTable:
18
19define signext i32 @jt(i32 signext %a, i32 signext %b) {
20entry:
21  switch i32 %a, label %sw.epilog [
22    i32 15, label %return
23    i32 12, label %sw.bb1
24    i32 19, label %sw.bb2
25    i32 27, label %sw.bb3
26    i32 31, label %sw.bb4
27  ]
28
29sw.bb1:                                           ; preds = %entry
30  br label %return
31
32sw.bb2:                                           ; preds = %entry
33  br label %return
34
35sw.bb3:                                           ; preds = %entry
36  br label %return
37
38sw.bb4:                                           ; preds = %entry
39  br label %return
40
41sw.epilog:                                        ; preds = %entry
42  br label %return
43
44return:                                           ; preds = %entry, %sw.epilog, %sw.bb4, %sw.bb3, %sw.bb2, %sw.bb1
45  %retval.0 = phi i32 [ 0, %sw.epilog ], [ 51, %sw.bb4 ], [ 49, %sw.bb3 ], [ 48, %sw.bb2 ], [ 46, %sw.bb1 ], [ 45, %entry ]
46  ret i32 %retval.0
47}
48