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Added test for commit r212802 that was missing

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llvm-svn: 212803
This commit is contained in:
Marcello Maggioni 2014-07-11 10:36:00 +00:00
parent 86729369ee
commit f8029b9337
1 changed files with 40 additions and 0 deletions
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test/Transforms/LowerSwitch/2014-06-23-PHIlowering.ll Normal file
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; RUN: opt < %s -lowerswitch -S | FileCheck %s
define i32 @test(i32 %arg) #0 {
; CHECK-LABEL: @test
; CHECK: ; <label>:2
; CHECK-NEXT: %res.0 = phi i32 [ 1, %NodeBlock ], [ 2, %1 ]
; CHECK-NEXT: br label %3
; CHECK: ; <label>:5
; CHECK-NEXT: %res.3 = phi i32 [ 0, %NewDefault ], [ %res.2, %4 ]
; CHECK-NEXT: %6 = add nsw i32 %res.3, 1
; CHECK-NEXT: ret i32 %6
switch i32 %arg, label %5 [
i32 1, label %1
i32 2, label %2
i32 3, label %3
i32 4, label %4
]
; <label>:1
br label %2
; <label>:2
%res.0 = phi i32 [ 1, %0 ], [ 2, %1 ]
br label %3
; <label>:3
%res.1 = phi i32 [ 0, %0 ], [ %res.0, %2 ]
%phitmp = add nsw i32 %res.1, 2
br label %4
; <label>:4
%res.2 = phi i32 [ 1, %0 ], [ %phitmp, %3 ]
br label %5
; <label>:5
%res.3 = phi i32 [ 0, %0 ], [ %res.2, %4 ]
%6 = add nsw i32 %res.3, 1
ret i32 %6
}