forked from OSchip/llvm-project
80 lines
2.3 KiB
LLVM
80 lines
2.3 KiB
LLVM
; RUN: llc %s -O2 -print-machineinstrs -mtriple=aarch64-linux-gnu -jump-table-density=40 -min-jump-table-entries=0 -o /dev/null 2> %t; FileCheck %s --check-prefixes=CHECK,CHECK0 < %t
|
|
; RUN: llc %s -O2 -print-machineinstrs -mtriple=aarch64-linux-gnu -jump-table-density=40 -min-jump-table-entries=4 -o /dev/null 2> %t; FileCheck %s --check-prefixes=CHECK,CHECK4 < %t
|
|
; RUN: llc %s -O2 -print-machineinstrs -mtriple=aarch64-linux-gnu -jump-table-density=40 -min-jump-table-entries=8 -o /dev/null 2> %t; FileCheck %s --check-prefixes=CHECK,CHECK8 < %t
|
|
|
|
declare void @ext(i32)
|
|
|
|
define i32 @jt2(i32 %a, i32 %b) {
|
|
entry:
|
|
switch i32 %a, label %return [
|
|
i32 1, label %bb1
|
|
i32 2, label %bb2
|
|
]
|
|
; CHECK-LABEL: function jt2:
|
|
; CHECK0-NEXT: Jump Tables:
|
|
; CHECK0-NEXT: jt#0:
|
|
; CHECK0-NOT: jt#1:
|
|
; CHECK4-NOT: Jump Tables:
|
|
; CHECK8-NOT: Jump Tables:
|
|
|
|
bb1: tail call void @ext(i32 0) br label %return
|
|
bb2: tail call void @ext(i32 2) br label %return
|
|
|
|
return: ret i32 %b
|
|
}
|
|
|
|
define i32 @jt4(i32 %a, i32 %b) {
|
|
entry:
|
|
switch i32 %a, label %return [
|
|
i32 1, label %bb1
|
|
i32 2, label %bb2
|
|
i32 3, label %bb3
|
|
i32 4, label %bb4
|
|
]
|
|
; CHECK-LABEL: function jt4:
|
|
; CHECK0-NEXT: Jump Tables:
|
|
; CHECK0-NEXT: jt#0:
|
|
; CHECK0-NOT: jt#1:
|
|
; CHECK4-NEXT: Jump Tables:
|
|
; CHECK4-NEXT: jt#0:
|
|
; CHECK4-NOT: jt#1:
|
|
; CHECK8-NOT: Jump Tables:
|
|
|
|
bb1: tail call void @ext(i32 0) br label %return
|
|
bb2: tail call void @ext(i32 2) br label %return
|
|
bb3: tail call void @ext(i32 4) br label %return
|
|
bb4: tail call void @ext(i32 6) br label %return
|
|
|
|
return: ret i32 %b
|
|
}
|
|
|
|
define i32 @jt8(i32 %a, i32 %b) {
|
|
entry:
|
|
switch i32 %a, label %return [
|
|
i32 1, label %bb1
|
|
i32 2, label %bb2
|
|
i32 3, label %bb3
|
|
i32 4, label %bb4
|
|
i32 5, label %bb5
|
|
i32 6, label %bb6
|
|
i32 7, label %bb7
|
|
i32 8, label %bb8
|
|
]
|
|
; CHECK-LABEL: function jt8:
|
|
; CHECK-NEXT: Jump Tables:
|
|
; CHECK-NEXT: jt#0:
|
|
; CHECK-NOT: jt#1:
|
|
|
|
bb1: tail call void @ext(i32 0) br label %return
|
|
bb2: tail call void @ext(i32 2) br label %return
|
|
bb3: tail call void @ext(i32 4) br label %return
|
|
bb4: tail call void @ext(i32 6) br label %return
|
|
bb5: tail call void @ext(i32 8) br label %return
|
|
bb6: tail call void @ext(i32 10) br label %return
|
|
bb7: tail call void @ext(i32 12) br label %return
|
|
bb8: tail call void @ext(i32 14) br label %return
|
|
|
|
return: ret i32 %b
|
|
}
|
|
|