aa2009fe78
First step after e113317958,
in these tests, DomTree is valid afterwards, so mark them as such,
so that they don't regress.
In further steps, SimplifyCFG transforms shall taught to preserve DomTree,
in as small steps as possible.
53 lines
2.1 KiB
LLVM
53 lines
2.1 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
|
|
; RUN: opt < %s -S -simplifycfg -simplifycfg-require-and-preserve-domtree=1 -debug-pass=Details -enable-new-pm=0 2>&1 | FileCheck %s
|
|
|
|
;; Check the report from the pass manager, telling us whether simplifycfg
|
|
;; reported the "changed" status correctly:
|
|
; CHECK: Made Modification 'Simplify the CFG' on Function 'wibble'...
|
|
|
|
declare i32 @blam(i8*, i32)
|
|
|
|
define i32 @wibble(i8* %arg, i8** %arg1) {
|
|
; CHECK-LABEL: @wibble(
|
|
; CHECK-NEXT: bb:
|
|
; CHECK-NEXT: br label [[BB2:%.*]]
|
|
; CHECK: bb2:
|
|
; CHECK-NEXT: [[BORG:%.*]] = phi i32 [ 0, [[BB:%.*]] ], [ [[BORG]], [[BB8:%.*]] ]
|
|
; CHECK-NEXT: [[BORG3:%.*]] = phi i32 [ 8, [[BB]] ], [ [[BORG10:%.*]], [[BB8]] ]
|
|
; CHECK-NEXT: [[BORG4:%.*]] = tail call i32 @blam(i8* [[ARG:%.*]], i32 [[BORG]])
|
|
; CHECK-NEXT: [[BORG5:%.*]] = icmp eq i32 [[BORG4]], 0
|
|
; CHECK-NEXT: br i1 [[BORG5]], label [[BB8]], label [[BB6:%.*]]
|
|
; CHECK: bb6:
|
|
; CHECK-NEXT: [[BORG7:%.*]] = load i8*, i8** [[ARG1:%.*]], align 4
|
|
; CHECK-NEXT: br label [[BB8]]
|
|
; CHECK: bb8:
|
|
; CHECK-NEXT: [[BORG10]] = phi i32 [ [[BORG4]], [[BB6]] ], [ [[BORG3]], [[BB2]] ]
|
|
; CHECK-NEXT: [[BORG11:%.*]] = icmp ult i32 [[BORG]], 2
|
|
; CHECK-NEXT: br i1 [[BORG11]], label [[BB2]], label [[BB12:%.*]]
|
|
; CHECK: bb12:
|
|
; CHECK-NEXT: ret i32 1
|
|
;
|
|
bb:
|
|
br label %bb2
|
|
|
|
bb2: ; preds = %bb8, %bb
|
|
%borg = phi i32 [ 0, %bb ], [ %borg9, %bb8 ]
|
|
%borg3 = phi i32 [ 8, %bb ], [ %borg10, %bb8 ]
|
|
%borg4 = tail call i32 @blam(i8* %arg, i32 %borg)
|
|
%borg5 = icmp eq i32 %borg4, 0
|
|
br i1 %borg5, label %bb8, label %bb6
|
|
|
|
bb6: ; preds = %bb2
|
|
%borg7 = load i8*, i8** %arg1, align 4
|
|
br label %bb8
|
|
|
|
bb8: ; preds = %bb6, %bb2
|
|
%borg9 = phi i32 [ %borg, %bb6 ], [ %borg, %bb2 ]
|
|
%borg10 = phi i32 [ %borg4, %bb6 ], [ %borg3, %bb2 ]
|
|
%borg11 = icmp ult i32 %borg9, 2
|
|
br i1 %borg11, label %bb2, label %bb12
|
|
|
|
bb12: ; preds = %bb8
|
|
ret i32 1
|
|
}
|