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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; TODO: Run under new PM after switch. The IR is the same but basic block labels are different.
; RUN: opt -S -O2 -scev-cheap-expansion-budget=1024 %s -enable-new-pm=0 | FileCheck %s
; See https://bugs.llvm.org/show_bug.cgi?id=45360
; This is reduced from that (runnable) test.
; The remainder operation is originally guarded, it never divides by zero.
; Indvars should not make it execute unconditionally.
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-pc-linux-gnu"
@f = dso_local global i32 0, align 4
@a = dso_local global i32 0, align 4
@d = dso_local global i32 0, align 4
@c = dso_local global i32 0, align 4
@b = dso_local global i32 0, align 4
@e = dso_local global i32 0, align 4
define dso_local i32 @main() {
; CHECK-LABEL: @main(
; CHECK-NEXT: bb:
; CHECK-NEXT: [[I6:%.*]] = load i32, i32* @a, align 4
; CHECK-NEXT: [[I24:%.*]] = load i32, i32* @b, align 4
; CHECK-NEXT: [[D_PROMOTED7:%.*]] = load i32, i32* @d, align 4
; CHECK-NEXT: [[TMP0:%.*]] = and i32 [[D_PROMOTED7]], [[I6]]
; CHECK-NEXT: [[I21:%.*]] = icmp eq i32 [[TMP0]], 0
; CHECK-NEXT: br i1 [[I21]], label [[BB27_THREAD:%.*]], label [[BB27_PREHEADER:%.*]]
; CHECK: bb27.preheader:
; CHECK-NEXT: [[I26:%.*]] = urem i32 [[I24]], [[TMP0]]
; CHECK-NEXT: store i32 [[I26]], i32* @e, align 4
; CHECK-NEXT: [[I30_NOT:%.*]] = icmp eq i32 [[I26]], 0
; CHECK-NEXT: br label [[BB27:%.*]]
; CHECK: bb27.thread:
; CHECK-NEXT: store i32 0, i32* @d, align 4
; CHECK-NEXT: store i32 -1, i32* @f, align 4
; CHECK-NEXT: store i32 0, i32* @c, align 4
; CHECK-NEXT: br label [[BB32:%.*]]
; CHECK: bb27:
; CHECK-NEXT: br i1 [[I30_NOT]], label [[BB32_LOOPEXIT:%.*]], label [[BB36:%.*]]
; CHECK: bb32.loopexit:
; CHECK-NEXT: store i32 [[TMP0]], i32* @d, align 4
; CHECK-NEXT: store i32 -1, i32* @f, align 4
; CHECK-NEXT: br label [[BB32]]
; CHECK: bb32:
; CHECK-NEXT: [[C_SINK:%.*]] = phi i32* [ @c, [[BB32_LOOPEXIT]] ], [ @e, [[BB27_THREAD]] ]
; CHECK-NEXT: store i32 0, i32* [[C_SINK]], align 4
; CHECK-NEXT: ret i32 0
; CHECK: bb36:
; CHECK-NEXT: store i32 1, i32* @c, align 4
; CHECK-NEXT: br i1 [[I21]], label [[BB27_THREAD]], label [[BB27]]
;
bb:
%i = alloca i32, align 4
store i32 0, i32* %i, align 4
br label %bb1
bb1:
store i32 0, i32* @f, align 4
br label %bb2
bb2:
%i3 = load i32, i32* @f, align 4
%i4 = icmp sge i32 %i3, 0
br i1 %i4, label %bb5, label %bb12
bb5:
%i6 = load i32, i32* @a, align 4
%i7 = load i32, i32* @d, align 4
%i8 = and i32 %i7, %i6
store i32 %i8, i32* @d, align 4
br label %bb9
bb9:
%i10 = load i32, i32* @f, align 4
%i11 = add nsw i32 %i10, -1
store i32 %i11, i32* @f, align 4
br label %bb2
bb12:
store i32 0, i32* @c, align 4
br label %bb13
bb13:
%i14 = load i32, i32* @c, align 4
%i15 = icmp sle i32 %i14, 0
br i1 %i15, label %bb16, label %bb39
bb16:
%i17 = load i32, i32* @f, align 4
%i18 = icmp ne i32 %i17, 0
br i1 %i18, label %bb19, label %bb34
bb19:
%i20 = load i32, i32* @d, align 4
%i21 = icmp eq i32 %i20, 0
br i1 %i21, label %bb22, label %bb23
bb22:
br label %bb27
bb23:
%i24 = load i32, i32* @b, align 4
%i25 = load i32, i32* @d, align 4
%i26 = urem i32 %i24, %i25
br label %bb27
bb27:
%i28 = phi i32 [ 0, %bb22 ], [ %i26, %bb23 ]
store i32 %i28, i32* @e, align 4
%i29 = load i32, i32* @e, align 4
%i30 = icmp ne i32 %i29, 0
br i1 %i30, label %bb31, label %bb32
bb31:
br label %bb33
bb32:
ret i32 0
bb33:
br label %bb35
bb34:
store i32 0, i32* @d, align 4
br label %bb35
bb35:
br label %bb36
bb36:
%i37 = load i32, i32* @c, align 4
%i38 = add nsw i32 %i37, 1
store i32 %i38, i32* @c, align 4
br label %bb13
bb39:
br label %bb1
}
|
