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Imported Upstream version 5.18.0.167

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Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a
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Xamarin Public Jenkins (auto-signing)
2018-10-20 08:25:10 +00:00
parent e19d552987
commit b084638f15
28489 changed files with 184 additions and 3866856 deletions
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81
external/llvm/test/CodeGen/X86/switch-density.ll vendored
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@ -1,81 +0,0 @@
; RUN: llc -mtriple=x86_64-linux-gnu %s -o - -jump-table-density=25 | FileCheck %s --check-prefix=DENSE --check-prefix=CHECK
; RUN: llc -mtriple=x86_64-linux-gnu %s -o - -jump-table-density=10 | FileCheck %s --check-prefix=SPARSE --check-prefix=CHECK
declare void @g(i32)
define void @sparse(i32 %x) {
entry:
switch i32 %x, label %return [
i32 300, label %bb0
i32 100, label %bb1
i32 400, label %bb1
i32 500, label %bb2
]
bb0: tail call void @g(i32 0) br label %return
bb1: tail call void @g(i32 1) br label %return
bb2: tail call void @g(i32 1) br label %return
return: ret void
; Should pivot around 400 for two subtrees with two jump tables each.
; CHECK-LABEL: sparse
; CHECK-NOT: cmpl
; CHECK: cmpl $399
; CHECK: cmpl $100
; CHECK: cmpl $300
; CHECK: cmpl $400
; CHECK: cmpl $500
}
define void @med(i32 %x) {
entry:
switch i32 %x, label %return [
i32 30, label %bb0
i32 10, label %bb1
i32 40, label %bb1
i32 50, label %bb2
i32 20, label %bb3
]
bb0: tail call void @g(i32 0) br label %return
bb1: tail call void @g(i32 1) br label %return
bb2: tail call void @g(i32 1) br label %return
bb3: tail call void @g(i32 2) br label %return
return: ret void
; Lowered as a jump table when sparse, and branches when dense.
; CHECK-LABEL: med
; SPARSE: addl $-10
; SPARSE: cmpl $40
; SPARSE: ja
; SPARSE: jmpq *.LJTI
; DENSE-NOT: cmpl
; DENSE: cmpl $29
; DENSE-DAG: cmpl $10
; DENSE-DAG: cmpl $20
; DENSE-DAG: cmpl $30
; DENSE-DAG: cmpl $40
; DENSE-DAG: cmpl $50
; DENSE: retq
}
define void @dense(i32 %x) {
entry:
switch i32 %x, label %return [
i32 12, label %bb0
i32 4, label %bb1
i32 16, label %bb1
i32 20, label %bb2
i32 8, label %bb3
]
bb0: tail call void @g(i32 0) br label %return
bb1: tail call void @g(i32 1) br label %return
bb2: tail call void @g(i32 1) br label %return
bb3: tail call void @g(i32 2) br label %return
return: ret void
; Lowered as a jump table when sparse, and branches when dense.
; CHECK-LABEL: dense
; CHECK: addl $-4
; CHECK: cmpl $16
; CHECK: ja
; CHECK: jmpq *.LJTI
}