; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4 ; RUN: opt -S -passes="separate-const-offset-from-gep" < %s | FileCheck %s ;; Check that or operations, either with operands with no bits in common or that ;; are disjoint are lowered into constant GEPs. Note that because this is a ;; target-independent test, the GEP seperator will lower the seperated-off constant ;; part to ptrtoint-based arithmetic. define void @testOrDoesntSplit(ptr %p) { ; CHECK-LABEL: define void @testOrDoesntSplit( ; CHECK-SAME: ptr [[P:%.*]]) { ; CHECK-NEXT: [[VAR:%.*]] = tail call i64 @foo() ; CHECK-NEXT: [[OFF:%.*]] = or i64 [[VAR]], 10 ; CHECK-NEXT: [[Q:%.*]] = getelementptr i8, ptr [[P]], i64 [[OFF]] ; CHECK-NEXT: store i8 0, ptr [[Q]], align 1 ; CHECK-NEXT: ret void ; %var = tail call i64 @foo() %off = or i64 %var, 10 %q = getelementptr i8, ptr %p, i64 %off store i8 0, ptr %q ret void } define void @testNoBitsInCommonOrSplits(ptr %p) { ; CHECK-LABEL: define void @testNoBitsInCommonOrSplits( ; CHECK-SAME: ptr [[P:%.*]]) { ; CHECK-NEXT: [[VAR:%.*]] = tail call i64 @foo() ; CHECK-NEXT: [[VAR_HIGH:%.*]] = and i64 [[VAR]], -16 ; CHECK-NEXT: [[TMP1:%.*]] = ptrtoint ptr [[P]] to i64 ; CHECK-NEXT: [[TMP2:%.*]] = add i64 [[TMP1]], [[VAR_HIGH]] ; CHECK-NEXT: [[TMP3:%.*]] = add i64 [[TMP2]], 10 ; CHECK-NEXT: [[TMP4:%.*]] = inttoptr i64 [[TMP3]] to ptr ; CHECK-NEXT: store i8 0, ptr [[TMP4]], align 1 ; CHECK-NEXT: ret void ; %var = tail call i64 @foo() %var.high = and i64 %var, -16 %off = or i64 %var.high, 10 %q = getelementptr i8, ptr %p, i64 %off store i8 0, ptr %q ret void } define void @testDisjointOrSplits(ptr %p) { ; CHECK-LABEL: define void @testDisjointOrSplits( ; CHECK-SAME: ptr [[P:%.*]]) { ; CHECK-NEXT: [[VAR:%.*]] = tail call i64 @foo() ; CHECK-NEXT: [[OFF:%.*]] = or disjoint i64 [[VAR]], 10 ; CHECK-NEXT: [[Q:%.*]] = getelementptr i8, ptr [[P]], i64 [[OFF]] ; CHECK-NEXT: store i8 0, ptr [[Q]], align 1 ; CHECK-NEXT: ret void ; %var = tail call i64 @foo() %off = or disjoint i64 %var, 10 %q = getelementptr i8, ptr %p, i64 %off store i8 0, ptr %q ret void } declare i64 @foo()