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|
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -passes=constraint-elimination -S %s | FileCheck %s
target datalayout = "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
declare void @use(i16)
declare void @llvm.assume(i1)
define void @test_monotonic_ptr_iv_inc_1_eq_to_uge(i8 %len.n, i16 %a) {
; CHECK-LABEL: @test_monotonic_ptr_iv_inc_1_eq_to_uge(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[LEN:%.*]] = zext i8 [[LEN_N:%.*]] to i16
; CHECK-NEXT: [[LEN_NEG:%.*]] = icmp uge i16 [[LEN]], [[A:%.*]]
; CHECK-NEXT: br i1 [[LEN_NEG]], label [[EXIT:%.*]], label [[LOOP_PH:%.*]]
; CHECK: loop.ph:
; CHECK-NEXT: br label [[LOOP_HEADER:%.*]]
; CHECK: loop.header:
; CHECK-NEXT: [[IV:%.*]] = phi i16 [ 0, [[LOOP_PH]] ], [ [[IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]
; CHECK-NEXT: [[C:%.*]] = icmp eq i16 [[IV]], [[LEN]]
; CHECK-NEXT: br i1 [[C]], label [[EXIT]], label [[FOR_BODY:%.*]]
; CHECK: for.body:
; CHECK-NEXT: [[T_1:%.*]] = icmp uge i16 [[IV]], 0
; CHECK-NEXT: [[T_2:%.*]] = icmp ult i16 [[IV]], [[A]]
; CHECK-NEXT: [[AND:%.*]] = and i1 [[T_1]], [[T_2]]
; CHECK-NEXT: br i1 [[AND]], label [[LOOP_LATCH]], label [[EXIT]]
; CHECK: loop.latch:
; CHECK-NEXT: call void @use(i16 [[IV]])
; CHECK-NEXT: [[IV_NEXT]] = add nuw nsw i16 [[IV]], 1
; CHECK-NEXT: br label [[LOOP_HEADER]]
; CHECK: exit:
; CHECK-NEXT: ret void
;
entry:
%len = zext i8 %len.n to i16
%len.neg = icmp uge i16 %len, %a
br i1 %len.neg, label %exit, label %loop.ph
loop.ph:
br label %loop.header
loop.header:
%iv = phi i16 [ 0, %loop.ph ], [ %iv.next, %loop.latch ]
%c = icmp eq i16 %iv, %len
br i1 %c, label %exit, label %for.body
for.body:
%t.1 = icmp uge i16 %iv, 0
%t.2 = icmp ult i16 %iv, %a
%and = and i1 %t.1, %t.2
br i1 %and, label %loop.latch, label %exit
loop.latch:
call void @use(i16 %iv)
%iv.next = add nuw nsw i16 %iv, 1
br label %loop.header
exit:
ret void
}
define void @test_remove_check_with_incrementing_integer_induction(i8 %len.n, i16 %a) {
; CHECK-LABEL: @test_remove_check_with_incrementing_integer_induction(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[LEN:%.*]] = zext i8 [[LEN_N:%.*]] to i16
; CHECK-NEXT: [[LEN_NEG_NOT:%.*]] = icmp ult i16 [[LEN]], [[A:%.*]]
; CHECK-NEXT: br i1 [[LEN_NEG_NOT]], label [[LOOP_HEADER:%.*]], label [[EXIT:%.*]]
; CHECK: loop.header:
; CHECK-NEXT: [[IV:%.*]] = phi i16 [ [[IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ], [ 0, [[ENTRY:%.*]] ]
; CHECK-NEXT: [[C:%.*]] = icmp ne i16 [[IV]], [[LEN]]
; CHECK-NEXT: [[T_2:%.*]] = icmp ult i16 [[IV]], [[A]]
; CHECK-NEXT: [[OR_COND:%.*]] = and i1 [[C]], [[T_2]]
; CHECK-NEXT: br i1 [[OR_COND]], label [[LOOP_LATCH]], label [[EXIT]]
; CHECK: loop.latch:
; CHECK-NEXT: call void @use(i16 [[IV]])
; CHECK-NEXT: [[IV_NEXT]] = add nuw nsw i16 [[IV]], 1
; CHECK-NEXT: br label [[LOOP_HEADER]]
; CHECK: exit:
; CHECK-NEXT: ret void
;
entry:
%len = zext i8 %len.n to i16
%len.neg.not = icmp ult i16 %len, %a
br i1 %len.neg.not, label %loop.header, label %exit
loop.header: ; preds = %entry, %loop.latch
%iv = phi i16 [ %iv.next, %loop.latch ], [ 0, %entry ]
%c = icmp ne i16 %iv, %len
%t.2 = icmp ult i16 %iv, %a
%or.cond = and i1 %c, %t.2
br i1 %or.cond, label %loop.latch, label %exit
loop.latch: ; preds = %loop.header
call void @use(i16 %iv)
%iv.next = add nuw nsw i16 %iv, 1
br label %loop.header
exit: ; preds = %loop.header, %entry
ret void
}
define void @test_monotonic_ptr_iv_inc_2_eq_to_uge(i8 %len.n, i16 %a) {
; CHECK-LABEL: @test_monotonic_ptr_iv_inc_2_eq_to_uge(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[LEN:%.*]] = zext i8 [[LEN_N:%.*]] to i16
; CHECK-NEXT: [[LEN_LT:%.*]] = icmp ult i16 [[LEN]], [[A:%.*]]
; CHECK-NEXT: br i1 [[LEN_LT]], label [[LOOP_PH:%.*]], label [[EXIT:%.*]]
; CHECK: loop.ph:
; CHECK-NEXT: br label [[LOOP_HEADER:%.*]]
; CHECK: loop.header:
; CHECK-NEXT: [[IV:%.*]] = phi i16 [ 0, [[LOOP_PH]] ], [ [[IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]
; CHECK-NEXT: [[C:%.*]] = icmp eq i16 [[IV]], [[LEN]]
; CHECK-NEXT: br i1 [[C]], label [[EXIT]], label [[FOR_BODY:%.*]]
; CHECK: for.body:
; CHECK-NEXT: [[T_1:%.*]] = icmp uge i16 [[IV]], 0
; CHECK-NEXT: [[T_2:%.*]] = icmp ult i16 [[IV]], [[A]]
; CHECK-NEXT: [[AND:%.*]] = and i1 [[T_1]], [[T_2]]
; CHECK-NEXT: br i1 [[AND]], label [[LOOP_LATCH]], label [[EXIT]]
; CHECK: loop.latch:
; CHECK-NEXT: call void @use(i16 [[IV]])
; CHECK-NEXT: [[IV_NEXT]] = add nuw i16 [[IV]], 2
; CHECK-NEXT: br label [[LOOP_HEADER]]
; CHECK: exit:
; CHECK-NEXT: ret void
;
entry:
%len = zext i8 %len.n to i16
%len.lt = icmp ult i16 %len, %a
br i1 %len.lt, label %loop.ph, label %exit
loop.ph:
br label %loop.header
loop.header:
%iv = phi i16 [ 0, %loop.ph ], [ %iv.next, %loop.latch ]
%c = icmp eq i16 %iv, %len
br i1 %c, label %exit, label %for.body
for.body:
%t.1 = icmp uge i16 %iv, 0
%t.2 = icmp ult i16 %iv, %a
%and = and i1 %t.1, %t.2
br i1 %and, label %loop.latch, label %exit
loop.latch:
call void @use(i16 %iv)
%iv.next = add nuw i16 %iv, 2
br label %loop.header
exit:
ret void
}
define void @test_monotonic_ptr_iv_inc_2_eq_to_uge_variable_start(i16 %start, i8 %len.n, i16 %a) {
; CHECK-LABEL: @test_monotonic_ptr_iv_inc_2_eq_to_uge_variable_start(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[LEN:%.*]] = zext i8 [[LEN_N:%.*]] to i16
; CHECK-NEXT: [[LEN_LT:%.*]] = icmp ult i16 [[LEN]], [[A:%.*]]
; CHECK-NEXT: [[START_LT:%.*]] = icmp ult i16 [[START:%.*]], [[LEN]]
; CHECK-NEXT: [[AND_0:%.*]] = and i1 [[LEN_LT]], [[START_LT]]
; CHECK-NEXT: br i1 [[AND_0]], label [[LOOP_PH:%.*]], label [[EXIT:%.*]]
; CHECK: loop.ph:
; CHECK-NEXT: br label [[LOOP_HEADER:%.*]]
; CHECK: loop.header:
; CHECK-NEXT: [[IV:%.*]] = phi i16 [ [[START]], [[LOOP_PH]] ], [ [[IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]
; CHECK-NEXT: [[C:%.*]] = icmp eq i16 [[IV]], [[LEN]]
; CHECK-NEXT: br i1 [[C]], label [[EXIT]], label [[FOR_BODY:%.*]]
; CHECK: for.body:
; CHECK-NEXT: [[T_1:%.*]] = icmp uge i16 [[IV]], 0
; CHECK-NEXT: [[T_2:%.*]] = icmp ult i16 [[IV]], [[A]]
; CHECK-NEXT: [[AND:%.*]] = and i1 [[T_1]], [[T_2]]
; CHECK-NEXT: br i1 [[AND]], label [[LOOP_LATCH]], label [[EXIT]]
; CHECK: loop.latch:
; CHECK-NEXT: call void @use(i16 [[IV]])
; CHECK-NEXT: [[IV_NEXT]] = add nuw i16 [[IV]], 2
; CHECK-NEXT: br label [[LOOP_HEADER]]
; CHECK: exit:
; CHECK-NEXT: ret void
;
entry:
%len = zext i8 %len.n to i16
%len.lt = icmp ult i16 %len, %a
%start.lt = icmp ult i16 %start, %len
%and.0 = and i1 %len.lt, %start.lt
br i1 %and.0, label %loop.ph, label %exit
loop.ph:
br label %loop.header
loop.header:
%iv = phi i16 [ %start, %loop.ph ], [ %iv.next, %loop.latch ]
%c = icmp eq i16 %iv, %len
br i1 %c, label %exit, label %for.body
for.body:
%t.1 = icmp uge i16 %iv, 0
%t.2 = icmp ult i16 %iv, %a
%and = and i1 %t.1, %t.2
br i1 %and, label %loop.latch, label %exit
loop.latch:
call void @use(i16 %iv)
%iv.next = add nuw i16 %iv, 2
br label %loop.header
exit:
ret void
}
|
