31 lines
824 B
LLVM
31 lines
824 B
LLVM
|
; RUN: opt < %s -postdomtree -analyze -enable-new-pm=0 | FileCheck %s
|
||
|
|
; RUN: opt < %s -passes='print<postdomtree>' 2>&1 | FileCheck %s
|
||
|
|
|
||
|
|
@a = external global i32, align 4
|
||
|
|
|
||
|
|
define void @fn1() {
|
||
|
|
entry:
|
||
|
|
store i32 5, i32* @a, align 4
|
||
|
|
%call = call i32 (...) @foo()
|
||
|
|
%tobool = icmp ne i32 %call, 0
|
||
|
|
br i1 %tobool, label %if.then, label %if.end
|
||
|
|
|
||
|
|
if.then: ; preds = %entry
|
||
|
|
br label %loop
|
||
|
|
|
||
|
|
loop: ; preds = %loop, %if.then
|
||
|
|
br label %loop
|
||
|
|
|
||
|
|
if.end: ; preds = %entry
|
||
|
|
store i32 6, i32* @a, align 4
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
declare i32 @foo(...)
|
||
|
|
|
||
|
|
; CHECK: Inorder PostDominator Tree:
|
||
|
|
; CHECK-NEXT: [1] <<exit node>>
|
||
|
|
; CHECK: [2] %loop
|
||
|
|
; CHECK-NEXT: [3] %if.then
|
||
|
|
; CHECK: Roots: %if.end %loop
|