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llvm-mirror/test/Analysis/PostDominators/infinite-loop2.ll
Arthur Eubanks ff74782c01 [PostDominators][NewPM] Fix tests to work under NPM
Each test has a legacy PM pinned to legacy PM and a NPM RUN line.

Reviewed By: asbirlea

Differential Revision: https://reviews.llvm.org/D87660
2020-09-15 11:19:01 -07:00

35 lines
907 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
%0 = load i32, i32* @a, align 4
call void @bar(i32 %0)
br label %loop
if.end: ; preds = %entry
store i32 6, i32* @a, align 4
ret void
}
declare i32 @foo(...)
declare void @bar(i32)
; CHECK: Inorder PostDominator Tree:
; CHECK-NEXT: [1] <<exit node>>
; CHECK: [2] %loop
; CHECK-NEXT: [3] %if.then
; CHECK: Roots: %if.end %loop