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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
; RUN: opt -passes=indvars -S < %s | FileCheck %s
declare void @use(i1)
declare void @llvm.experimental.guard(i1, ...)
define void @test_01(i8 %t) {
; CHECK-LABEL: define void @test_01(
; CHECK-SAME: i8 [[T:%.*]]) {
; CHECK-NEXT: [[ENTRY:.*]]:
; CHECK-NEXT: [[ST:%.*]] = sext i8 [[T]] to i16
; CHECK-NEXT: [[CMP1:%.*]] = icmp slt i16 [[ST]], 42
; CHECK-NEXT: call void (i1, ...) @llvm.experimental.guard(i1 [[CMP1]]) [ "deopt"() ]
; CHECK-NEXT: br label %[[LOOP:.*]]
; CHECK: [[LOOP]]:
; CHECK-NEXT: [[IDX:%.*]] = phi i8 [ [[T]], %[[ENTRY]] ], [ [[IDX_INC:%.*]], %[[LOOP]] ]
; CHECK-NEXT: [[IDX_INC]] = add nsw i8 [[IDX]], 1
; CHECK-NEXT: call void @use(i1 true)
; CHECK-NEXT: [[BE:%.*]] = icmp slt i8 [[IDX_INC]], 42
; CHECK-NEXT: br i1 [[BE]], label %[[LOOP]], label %[[EXIT:.*]]
; CHECK: [[EXIT]]:
; CHECK-NEXT: ret void
;
entry:
%st = sext i8 %t to i16
%cmp1 = icmp slt i16 %st, 42
call void(i1, ...) @llvm.experimental.guard(i1 %cmp1) [ "deopt"() ]
br label %loop
loop:
%idx = phi i8 [ %t, %entry ], [ %idx.inc, %loop ]
%idx.inc = add i8 %idx, 1
%c = icmp slt i8 %idx, 42
call void @use(i1 %c)
%be = icmp slt i8 %idx.inc, 42
br i1 %be, label %loop, label %exit
exit:
ret void
}
define void @test_02(i8 %t) {
; CHECK-LABEL: define void @test_02(
; CHECK-SAME: i8 [[T:%.*]]) {
; CHECK-NEXT: [[ENTRY:.*]]:
; CHECK-NEXT: [[T_PTR:%.*]] = inttoptr i8 [[T]] to ptr
; CHECK-NEXT: [[P_42:%.*]] = inttoptr i8 42 to ptr
; CHECK-NEXT: [[CMP1:%.*]] = icmp slt ptr [[T_PTR]], [[P_42]]
; CHECK-NEXT: call void (i1, ...) @llvm.experimental.guard(i1 [[CMP1]]) [ "deopt"() ]
; CHECK-NEXT: br label %[[LOOP:.*]]
; CHECK: [[LOOP]]:
; CHECK-NEXT: [[IDX:%.*]] = phi ptr [ [[T_PTR]], %[[ENTRY]] ], [ [[SNEXT:%.*]], %[[LOOP]] ]
; CHECK-NEXT: [[SNEXT]] = getelementptr inbounds i8, ptr [[IDX]], i64 1
; CHECK-NEXT: call void @use(i1 true)
; CHECK-NEXT: [[BE:%.*]] = icmp samesign ult ptr [[SNEXT]], [[P_42]]
; CHECK-NEXT: br i1 [[BE]], label %[[LOOP]], label %[[EXIT:.*]]
; CHECK: [[EXIT]]:
; CHECK-NEXT: ret void
;
entry:
%t.ptr = inttoptr i8 %t to ptr
%p.42 = inttoptr i8 42 to ptr
%cmp1 = icmp slt ptr %t.ptr, %p.42
call void(i1, ...) @llvm.experimental.guard(i1 %cmp1) [ "deopt"() ]
br label %loop
loop:
%idx = phi ptr [ %t.ptr, %entry ], [ %snext, %loop ]
%snext = getelementptr inbounds i8, ptr %idx, i64 1
%c = icmp slt ptr %idx, %p.42
call void @use(i1 %c)
%be = icmp slt ptr %snext, %p.42
br i1 %be, label %loop, label %exit
exit:
ret void
}
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