Files
clang-p2996/llvm/test/Transforms/SimplifyCFG/two-entry-phi-fold-crash.ll
Arthur Eubanks 61ac58e10a [NewPM] Pin tests with -debug-pass to legacy PM
-debug-pass is a legacy PM only option.

Some tests checks that the pass returned that it made a change,
which is not relevant to the NPM, since passes return PreservedAnalyses.

Some tests check that passes are freed at the proper time, which is also
not relevant to the NPM.

Reviewed By: asbirlea

Differential Revision: https://reviews.llvm.org/D87945
2020-09-22 17:54:25 -07:00

53 lines
2.0 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -S -simplifycfg -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
}