llvm-6502/test/Transforms/JumpThreading/basic.ll
Dan Gohman f2f6ce65b7 Change tests from "opt %s" to "opt < %s" so that opt doesn't see the
input filename so that opt doesn't print the input filename in the
output so that grep lines in the tests don't unintentionally match
strings in the input filename.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81537 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-11 18:01:28 +00:00

54 lines
875 B
LLVM

; RUN: opt < %s -jump-threading -simplifycfg -mem2reg -S | grep {ret i32 %v1}
; There should be no uncond branches left.
; RUN: opt < %s -jump-threading -simplifycfg -mem2reg -S | not grep {br label}
declare i32 @f1()
declare i32 @f2()
declare void @f3()
define i32 @test(i1 %cond) {
br i1 %cond, label %T1, label %F1
T1:
%v1 = call i32 @f1()
br label %Merge
F1:
%v2 = call i32 @f2()
br label %Merge
Merge:
%A = phi i1 [true, %T1], [false, %F1]
%B = phi i32 [%v1, %T1], [%v2, %F1]
br i1 %A, label %T2, label %F2
T2:
call void @f3()
ret i32 %B
F2:
ret i32 %B
}
;; cond is known false on Entry -> F1 edge!
define i32 @test2(i1 %cond) {
Entry:
br i1 %cond, label %T1, label %F1
T1:
%v1 = call i32 @f1()
br label %Merge
F1:
br i1 %cond, label %Merge, label %F2
Merge:
%B = phi i32 [47, %T1], [192, %F1]
ret i32 %B
F2:
call void @f3()
ret i32 12
}