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with the new code we can thread non-instruction values. This

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allows us to handle the test10 testcase.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86924 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2009-11-12 01:41:34 +00:00
parent 1c96b4187b
commit 87e9f59c7a
2 changed files with 46 additions and 3 deletions
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42
test/Transforms/JumpThreading/basic.ll
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@@ -285,12 +285,50 @@ F2:
; CHECK: @test10
declare i32 @test10f1()
declare i32 @test10f2()
declare void @test10f3()
;; Non-local condition threading.
define i32 @test10(i1 %cond) {
; CHECK: @test10
; CHECK-NEXT: br i1 %cond, label %T2, label %F2
br i1 %cond, label %T1, label %F1
T1:
%v1 = call i32 @test10f1()
br label %Merge
; CHECK: %v1 = call i32 @test10f1()
; CHECK-NEXT: call void @f3()
; CHeCK-NEXT: ret i32 %v1
F1:
%v2 = call i32 @test10f2()
br label %Merge
Merge:
%B = phi i32 [%v1, %T1], [%v2, %F1]
br i1 %cond, label %T2, label %F2
T2:
call void @f3()
ret i32 %B
F2:
ret i32 %B
}
;;; Duplicate condition to avoid xor of cond.
;;; TODO: Make this happen.
define i32 @test10(i1 %cond, i1 %cond2) {
define i32 @test11(i1 %cond, i1 %cond2) {
Entry:
; CHECK: @test10
; CHECK: @test11
%v1 = call i32 @f1()
br i1 %cond, label %Merge, label %F1