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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
; RUN: opt -passes=loop-load-elim -S %s | FileCheck %s
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
define void @f(ptr %A, ptr %B, ptr %C, i64 %N) {
; CHECK-LABEL: define void @f(
; CHECK-SAME: ptr [[A:%.*]], ptr [[B:%.*]], ptr [[C:%.*]], i64 [[N:%.*]]) {
; CHECK-NEXT: [[FOR_BODY_LVER_CHECK:.*]]:
; CHECK-NEXT: br label %[[FOR_BODY:.*]]
; CHECK: [[FOR_BODY]]:
; CHECK-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ 0, %[[FOR_BODY_LVER_CHECK]] ], [ [[INDVARS_IV_NEXT:%.*]], %[[LATCH:.*]] ]
; CHECK-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1
; CHECK-NEXT: [[AIDX_NEXT:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[INDVARS_IV_NEXT]]
; CHECK-NEXT: [[BIDX:%.*]] = getelementptr inbounds i32, ptr [[B]], i64 [[INDVARS_IV]]
; CHECK-NEXT: [[CIDX:%.*]] = getelementptr inbounds i32, ptr [[C]], i64 [[INDVARS_IV]]
; CHECK-NEXT: [[AIDX:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[INDVARS_IV]]
; CHECK-NEXT: [[B:%.*]] = load i32, ptr [[BIDX]], align 4
; CHECK-NEXT: [[UNCOUNTABLE_C:%.*]] = icmp eq i32 [[B]], 10
; CHECK-NEXT: br i1 [[UNCOUNTABLE_C]], label %[[LATCH]], label %[[FOR_END:.*]]
; CHECK: [[LATCH]]:
; CHECK-NEXT: [[A_P1:%.*]] = add i32 [[B]], 2
; CHECK-NEXT: store i32 [[A_P1]], ptr [[AIDX_NEXT]], align 4
; CHECK-NEXT: [[A:%.*]] = load i32, ptr [[AIDX]], align 1
; CHECK-NEXT: [[C:%.*]] = mul i32 [[A]], 2
; CHECK-NEXT: store i32 [[C]], ptr [[CIDX]], align 4
; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[INDVARS_IV_NEXT]], [[N]]
; CHECK-NEXT: br i1 [[EXITCOND]], label %[[FOR_END]], label %[[FOR_BODY]]
; CHECK: [[FOR_END]]:
; CHECK-NEXT: ret void
;
entry:
br label %for.body
for.body: ; preds = %for.body, %entry
%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %latch ]
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
%Aidx_next = getelementptr inbounds i32, ptr %A, i64 %indvars.iv.next
%Bidx = getelementptr inbounds i32, ptr %B, i64 %indvars.iv
%Cidx = getelementptr inbounds i32, ptr %C, i64 %indvars.iv
%Aidx = getelementptr inbounds i32, ptr %A, i64 %indvars.iv
%b = load i32, ptr %Bidx, align 4
%uncountable.c = icmp eq i32 %b, 10
br i1 %uncountable.c, label %latch, label %for.end
latch:
%a_p1 = add i32 %b, 2
store i32 %a_p1, ptr %Aidx_next, align 4
%a = load i32, ptr %Aidx, align 1
%c = mul i32 %a, 2
store i32 %c, ptr %Cidx, align 4
%exitcond = icmp eq i64 %indvars.iv.next, %N
br i1 %exitcond, label %for.end, label %for.body
for.end: ; preds = %for.body
ret void
}
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