llvm-project/llvm/test/Transforms/SSI/ssiphi.ll

; RUN: opt < %s -ssi-everything -S | FileCheck %s

declare void @use(i32)
declare i32 @create()

define i32 @foo() {
entry:
  %x = call i32 @create()
  %y = icmp slt i32 %x, 10
  br i1 %y, label %T, label %F
T:
; CHECK: SSI_sigma 
  call void @use(i32 %x)
  br label %join
F:
; CHECK: SSI_sigma
  call void @use(i32 %x)
  br label %join
join:
; CHECK: SSI_phi
  ret i32 %x
}
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. llvm-svn: 81537 2009-09-12 02:01:28 +08:00			`; RUN: opt < %s -ssi-everything -S \| FileCheck %s`
Add a test that shows that SSI is working correctly. llvm-svn: 79230 2009-08-17 15:32:08 +08:00
			`declare void @use(i32)`
			`declare i32 @create()`

			`define i32 @foo() {`
			`entry:`
			`%x = call i32 @create()`
			`%y = icmp slt i32 %x, 10`
			`br i1 %y, label %T, label %F`
			`T:`
			`; CHECK: SSI_sigma`
			`call void @use(i32 %x)`
			`br label %join`
			`F:`
			`; CHECK: SSI_sigma`
			`call void @use(i32 %x)`
			`br label %join`
			`join:`
			`; CHECK: SSI_phi`
			`ret i32 %x`
			`}`