llvm-6502/test/Transforms/JumpThreading/dup-cond.ll

; RUN: opt < %s -jump-threading -die -S | grep icmp | count 1

declare void @f1()
declare void @f2()
declare void @f3()

define i32 @test(i32 %A) {
	%tmp455 = icmp eq i32 %A, 42
	br i1 %tmp455, label %BB1, label %BB2
        
BB2:
	call void @f1()
	br label %BB1
        

BB1:
	%tmp459 = icmp eq i32 %A, 42
	br i1 %tmp459, label %BB3, label %BB4

BB3:
	call void @f2()
        ret i32 3

BB4:
	call void @f3()
	ret i32 4
}
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			`; RUN: opt < %s -jump-threading -die -S \| grep icmp \| count 1`
make jump threading handle lexically identical compare instructions as if they were multiple uses of the same instruction. This interacts well with the existing loadpre that j-t does to open up many new jump threads earlier. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73768 91177308-0d34-0410-b5e6-96231b3b80d8 2009-06-19 16:27:56 +00:00
			`declare void @f1()`
			`declare void @f2()`
			`declare void @f3()`

			`define i32 @test(i32 %A) {`
			`%tmp455 = icmp eq i32 %A, 42`
			`br i1 %tmp455, label %BB1, label %BB2`

			`BB2:`
			`call void @f1()`
			`br label %BB1`


			`BB1:`
			`%tmp459 = icmp eq i32 %A, 42`
			`br i1 %tmp459, label %BB3, label %BB4`

			`BB3:`
			`call void @f2()`
			`ret i32 3`

			`BB4:`
			`call void @f3()`
			`ret i32 4`
			`}`