forked from OSchip/llvm-project
80 lines
2.3 KiB
LLVM
80 lines
2.3 KiB
LLVM
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; 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
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; 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
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; 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
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declare void @ext(i32)
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define i32 @jt2(i32 %a, i32 %b) {
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entry:
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switch i32 %a, label %return [
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i32 1, label %bb1
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i32 2, label %bb2
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]
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; CHECK-LABEL: function jt2:
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; CHECK0-NEXT: Jump Tables:
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; CHECK0-NEXT: jt#0:
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; CHECK0-NOT: jt#1:
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; CHECK4-NOT: Jump Tables:
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; CHECK8-NOT: Jump Tables:
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bb1: tail call void @ext(i32 0) br label %return
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bb2: tail call void @ext(i32 2) br label %return
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return: ret i32 %b
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}
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define i32 @jt4(i32 %a, i32 %b) {
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entry:
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switch i32 %a, label %return [
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i32 1, label %bb1
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i32 2, label %bb2
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i32 3, label %bb3
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i32 4, label %bb4
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]
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; CHECK-LABEL: function jt4:
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; CHECK0-NEXT: Jump Tables:
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; CHECK0-NEXT: jt#0:
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; CHECK0-NOT: jt#1:
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; CHECK4-NEXT: Jump Tables:
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; CHECK4-NEXT: jt#0:
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; CHECK4-NOT: jt#1:
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; CHECK8-NOT: Jump Tables:
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bb1: tail call void @ext(i32 0) br label %return
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bb2: tail call void @ext(i32 2) br label %return
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bb3: tail call void @ext(i32 4) br label %return
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bb4: tail call void @ext(i32 6) br label %return
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return: ret i32 %b
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}
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define i32 @jt8(i32 %a, i32 %b) {
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entry:
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switch i32 %a, label %return [
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i32 1, label %bb1
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i32 2, label %bb2
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i32 3, label %bb3
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i32 4, label %bb4
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i32 5, label %bb5
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i32 6, label %bb6
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i32 7, label %bb7
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i32 8, label %bb8
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]
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; CHECK-LABEL: function jt8:
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; CHECK-NEXT: Jump Tables:
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; CHECK-NEXT: jt#0:
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; CHECK-NOT: jt#1:
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bb1: tail call void @ext(i32 0) br label %return
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bb2: tail call void @ext(i32 2) br label %return
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bb3: tail call void @ext(i32 4) br label %return
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bb4: tail call void @ext(i32 6) br label %return
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bb5: tail call void @ext(i32 8) br label %return
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bb6: tail call void @ext(i32 10) br label %return
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bb7: tail call void @ext(i32 12) br label %return
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bb8: tail call void @ext(i32 14) br label %return
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return: ret i32 %b
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}
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