mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-21 12:02:58 +02:00
d32b3c9325
Add an option to allow easier experimentation by target maintainers with the minimum number of entries to create jump tables. Also clarify the name of the other existing option governing the creation of jump tables. Differential revision: https://reviews.llvm.org/D25883 llvm-svn: 285104
94 lines
3.2 KiB
LLVM
94 lines
3.2 KiB
LLVM
; RUN: llc %s -O2 -print-machineinstrs -mtriple=aarch64-linux-gnu -jump-table-density=40 -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 -max-jump-table-size=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 -max-jump-table-size=8 -o /dev/null 2> %t; FileCheck %s --check-prefixes=CHECK,CHECK8 < %t
|
|
; RUN: llc %s -O2 -print-machineinstrs -mtriple=aarch64-linux-gnu -jump-table-density=40 -mcpu=exynos-m1 -o /dev/null 2> %t; FileCheck %s --check-prefixes=CHECK,CHECKM1 < %t
|
|
|
|
declare void @ext(i32)
|
|
|
|
define i32 @jt1(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
|
|
i32 9, label %bb9
|
|
i32 10, label %bb10
|
|
i32 11, label %bb11
|
|
i32 12, label %bb12
|
|
i32 13, label %bb13
|
|
i32 14, label %bb14
|
|
i32 15, label %bb15
|
|
i32 16, label %bb16
|
|
i32 17, label %bb17
|
|
]
|
|
; CHECK-LABEL: function jt1:
|
|
; CHECK-NEXT: Jump Tables:
|
|
; CHECK0-NEXT: jt#0:
|
|
; CHECK0-NOT: jt#1:
|
|
; CHECK4-NEXT: jt#0:
|
|
; CHECK4-SAME: jt#1:
|
|
; CHECK4-SAME: jt#2:
|
|
; CHECK4-SAME: jt#3:
|
|
; CHECK4-NOT: jt#4:
|
|
; CHECK8-NEXT: jt#0:
|
|
; CHECK8-SAME: jt#1:
|
|
; CHECK8-NOT: jt#2:
|
|
; CHECKM1-NEXT: jt#0:
|
|
; CHECKM1-SAME: jt#1
|
|
; CHECKM1-NOT: jt#2:
|
|
; CHEC-NEXT: Function Live Ins:
|
|
|
|
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
|
|
bb9: tail call void @ext(i32 16) br label %return
|
|
bb10: tail call void @ext(i32 18) br label %return
|
|
bb11: tail call void @ext(i32 20) br label %return
|
|
bb12: tail call void @ext(i32 22) br label %return
|
|
bb13: tail call void @ext(i32 24) br label %return
|
|
bb14: tail call void @ext(i32 26) br label %return
|
|
bb15: tail call void @ext(i32 28) br label %return
|
|
bb16: tail call void @ext(i32 30) br label %return
|
|
bb17: tail call void @ext(i32 32) br label %return
|
|
|
|
return: ret i32 %b
|
|
}
|
|
|
|
define void @jt2(i32 %x) {
|
|
entry:
|
|
switch i32 %x, label %return [
|
|
i32 1, label %bb1
|
|
i32 2, label %bb2
|
|
i32 3, label %bb3
|
|
i32 4, label %bb4
|
|
|
|
i32 14, label %bb5
|
|
i32 15, label %bb6
|
|
]
|
|
; CHECK-LABEL: function jt2:
|
|
; CHECK-NEXT: Jump Tables:
|
|
; CHECK0-NEXT: jt#0: BB#1 BB#2 BB#3 BB#4 BB#7 BB#7 BB#7 BB#7 BB#7 BB#7 BB#7 BB#7 BB#7 BB#5 BB#6{{$}}
|
|
; CHECK4-NEXT: jt#0: BB#1 BB#2 BB#3 BB#4{{$}}
|
|
; CHECK8-NEXT: jt#0: BB#1 BB#2 BB#3 BB#4{{$}}
|
|
; CHECKM1-NEXT: jt#0: BB#1 BB#2 BB#3 BB#4{{$}}
|
|
; CHEC-NEXT: Function Live Ins:
|
|
|
|
bb1: tail call void @ext(i32 1) br label %return
|
|
bb2: tail call void @ext(i32 2) br label %return
|
|
bb3: tail call void @ext(i32 3) br label %return
|
|
bb4: tail call void @ext(i32 4) br label %return
|
|
bb5: tail call void @ext(i32 5) br label %return
|
|
bb6: tail call void @ext(i32 6) br label %return
|
|
return: ret void
|
|
}
|