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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 6
; RUN: opt < %s -passes=infer-alignment -S | FileCheck %s
define i64 @base(ptr %ptr) {
; CHECK-LABEL: define i64 @base(
; CHECK-SAME: ptr [[PTR:%.*]]) {
; CHECK-NEXT: [[V1:%.*]] = load i32, ptr [[PTR]], align 4
; CHECK-NEXT: [[V3:%.*]] = ptrtoint ptr [[PTR]] to i64
; CHECK-NEXT: [[V5:%.*]] = and i64 [[V3]], 2
; CHECK-NEXT: ret i64 0
;
%v1 = load i32, ptr %ptr, align 4
%v3 = ptrtoint ptr %ptr to i64
%v5 = and i64 %v3, 2
ret i64 %v5
}
define i64 @best_alignment(ptr %ptr) {
; CHECK-LABEL: define i64 @best_alignment(
; CHECK-SAME: ptr [[PTR:%.*]]) {
; CHECK-NEXT: [[V1:%.*]] = load i32, ptr [[PTR]], align 8
; CHECK-NEXT: [[V2:%.*]] = load i32, ptr [[PTR]], align 16
; CHECK-NEXT: [[V3:%.*]] = ptrtoint ptr [[PTR]] to i64
; CHECK-NEXT: [[V5:%.*]] = and i64 [[V3]], 15
; CHECK-NEXT: ret i64 0
;
%v1 = load i32, ptr %ptr, align 8
%v2 = load i32, ptr %ptr, align 16
%v3 = ptrtoint ptr %ptr to i64
%v5 = and i64 %v3, 15
ret i64 %v5
}
declare void @func()
define i64 @negative_test(ptr %ptr) {
; CHECK-LABEL: define i64 @negative_test(
; CHECK-SAME: ptr [[PTR:%.*]]) {
; CHECK-NEXT: [[V3:%.*]] = ptrtoint ptr [[PTR]] to i64
; CHECK-NEXT: [[V5:%.*]] = and i64 [[V3]], 2
; CHECK-NEXT: call void @func()
; CHECK-NEXT: [[V1:%.*]] = load i32, ptr [[PTR]], align 4
; CHECK-NEXT: ret i64 [[V5]]
;
%v3 = ptrtoint ptr %ptr to i64
%v5 = and i64 %v3, 2
call void @func()
%v1 = load i32, ptr %ptr, align 4
ret i64 %v5
}
define i64 @ptrtoaddr(ptr %ptr) {
; CHECK-LABEL: define i64 @ptrtoaddr(
; CHECK-SAME: ptr [[PTR:%.*]]) {
; CHECK-NEXT: [[V3:%.*]] = ptrtoaddr ptr [[PTR]] to i64
; CHECK-NEXT: [[V1:%.*]] = load i32, ptr [[PTR]], align 4
; CHECK-NEXT: [[V5:%.*]] = and i64 [[V3]], 2
; CHECK-NEXT: ret i64 0
;
%v3 = ptrtoaddr ptr %ptr to i64
%v1 = load i32, ptr %ptr, align 4
%v5 = and i64 %v3, 2
ret i64 %v5
}
define i64 @redundant_mask(ptr %ptr) {
; CHECK-LABEL: define i64 @redundant_mask(
; CHECK-SAME: ptr [[PTR:%.*]]) {
; CHECK-NEXT: [[LOAD:%.*]] = load i32, ptr [[PTR]], align 4
; CHECK-NEXT: [[INT:%.*]] = ptrtoint ptr [[PTR]] to i64
; CHECK-NEXT: [[MASK:%.*]] = and i64 [[INT]], -4
; CHECK-NEXT: ret i64 [[INT]]
;
%load = load i32, ptr %ptr, align 4
%int = ptrtoint ptr %ptr to i64
%mask = and i64 %int, -4
ret i64 %mask
}
define i64 @redundant_mask2(ptr %ptr) {
; CHECK-LABEL: define i64 @redundant_mask2(
; CHECK-SAME: ptr [[PTR:%.*]]) {
; CHECK-NEXT: [[LOAD:%.*]] = load i32, ptr [[PTR]], align 4
; CHECK-NEXT: [[INT:%.*]] = ptrtoint ptr [[PTR]] to i64
; CHECK-NEXT: [[MASK:%.*]] = and i64 [[INT]], -3
; CHECK-NEXT: ret i64 [[INT]]
;
%load = load i32, ptr %ptr, align 4
%int = ptrtoint ptr %ptr to i64
%mask = and i64 %int, -3
ret i64 %mask
}
define i64 @not_redundant_mask(ptr %ptr) {
; CHECK-LABEL: define i64 @not_redundant_mask(
; CHECK-SAME: ptr [[PTR:%.*]]) {
; CHECK-NEXT: [[LOAD:%.*]] = load i32, ptr [[PTR]], align 4
; CHECK-NEXT: [[INT:%.*]] = ptrtoint ptr [[PTR]] to i64
; CHECK-NEXT: [[MASK:%.*]] = and i64 [[INT]], -5
; CHECK-NEXT: ret i64 [[MASK]]
;
%load = load i32, ptr %ptr, align 4
%int = ptrtoint ptr %ptr to i64
%mask = and i64 %int, -5
ret i64 %mask
}
|
