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Imported Upstream version 5.18.0.246

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Former-commit-id: 0c7ce5b1a7851e13f22acfd379b7f9fb304e4833
This commit is contained in:
Xamarin Public Jenkins (auto-signing)
2019-01-23 08:21:40 +00:00
parent a7724cd563
commit 279aa8f685
28482 changed files with 3866972 additions and 44 deletions
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41
external/llvm/test/Transforms/SimplifyCFG/switch-to-select-two-case.ll vendored Normal file
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@@ -0,0 +1,41 @@
; RUN: opt < %s -simplifycfg -S | FileCheck %s
; int foo1_with_default(int a) {
; switch(a) {
; case 10:
; return 10;
; case 20:
; return 2;
; }
; return 4;
; }
define i32 @foo1_with_default(i32 %a) {
; CHECK-LABEL: @foo1_with_default(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[SWITCH_SELECTCMP:%.*]] = icmp eq i32 %a, 20
; CHECK-NEXT: [[SWITCH_SELECT:%.*]] = select i1 [[SWITCH_SELECTCMP:%.*]], i32 2, i32 4
; CHECK-NEXT: [[SWITCH_SELECTCMP1:%.*]] = icmp eq i32 %a, 10
; CHECK-NEXT: [[SWITCH_SELECT2:%.*]] = select i1 [[SWITCH_SELECTCMP1]], i32 10, i32 [[SWITCH_SELECT]]
; CHECK-NEXT: ret i32 [[SWITCH_SELECT2]]
;
entry:
switch i32 %a, label %sw.epilog [
i32 10, label %sw.bb
i32 20, label %sw.bb1
]
sw.bb:
br label %return
sw.bb1:
br label %return
sw.epilog:
br label %return
return:
%retval.0 = phi i32 [ 4, %sw.epilog ], [ 2, %sw.bb1 ], [ 10, %sw.bb ]
ret i32 %retval.0
}