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TheRock/compiler/amd-llvm/llvm/test/Transforms/InferAlignment/ptrmask.ll
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93 lines
4.0 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 2
; RUN: opt < %s -passes=infer-alignment -S | FileCheck %s
target datalayout = "p1:64:64:64:32"
; ------------------------------------------------------------------------------
; load instructions
; ------------------------------------------------------------------------------
define void @load(ptr align 1 %ptr) {
; CHECK-LABEL: define void @load
; CHECK-SAME: (ptr align 1 [[PTR:%.*]]) {
; CHECK-NEXT: [[ALIGNED_0:%.*]] = call ptr @llvm.ptrmask.p0.i64(ptr [[PTR]], i64 -2)
; CHECK-NEXT: [[ALIGNED_1:%.*]] = call ptr @llvm.ptrmask.p0.i64(ptr [[PTR]], i64 -4)
; CHECK-NEXT: [[ALIGNED_2:%.*]] = call ptr @llvm.ptrmask.p0.i64(ptr [[PTR]], i64 -8)
; CHECK-NEXT: [[LOAD_0:%.*]] = load <16 x i8>, ptr [[ALIGNED_0]], align 2
; CHECK-NEXT: [[LOAD_1:%.*]] = load <16 x i8>, ptr [[ALIGNED_1]], align 4
; CHECK-NEXT: [[LOAD_2:%.*]] = load <16 x i8>, ptr [[ALIGNED_2]], align 8
; CHECK-NEXT: ret void
;
%aligned.0 = call ptr @llvm.ptrmask.p0.i64(ptr %ptr, i64 -2)
%aligned.1 = call ptr @llvm.ptrmask.p0.i64(ptr %ptr, i64 -4)
%aligned.2 = call ptr @llvm.ptrmask.p0.i64(ptr %ptr, i64 -8)
%load.0 = load <16 x i8>, ptr %aligned.0, align 1
%load.1 = load <16 x i8>, ptr %aligned.1, align 1
%load.2 = load <16 x i8>, ptr %aligned.2, align 1
ret void
}
; ------------------------------------------------------------------------------
; store instructions
; ------------------------------------------------------------------------------
define void @store(ptr align 1 %ptr) {
; CHECK-LABEL: define void @store
; CHECK-SAME: (ptr align 1 [[PTR:%.*]]) {
; CHECK-NEXT: [[ALIGNED_0:%.*]] = call ptr @llvm.ptrmask.p0.i64(ptr [[PTR]], i64 -2)
; CHECK-NEXT: [[ALIGNED_1:%.*]] = call ptr @llvm.ptrmask.p0.i64(ptr [[PTR]], i64 -4)
; CHECK-NEXT: [[ALIGNED_2:%.*]] = call ptr @llvm.ptrmask.p0.i64(ptr [[PTR]], i64 -8)
; CHECK-NEXT: store <16 x i8> zeroinitializer, ptr [[ALIGNED_0]], align 2
; CHECK-NEXT: store <16 x i8> zeroinitializer, ptr [[ALIGNED_1]], align 4
; CHECK-NEXT: store <16 x i8> zeroinitializer, ptr [[ALIGNED_2]], align 8
; CHECK-NEXT: ret void
;
%aligned.0 = call ptr @llvm.ptrmask.p0.i64(ptr %ptr, i64 -2)
%aligned.1 = call ptr @llvm.ptrmask.p0.i64(ptr %ptr, i64 -4)
%aligned.2 = call ptr @llvm.ptrmask.p0.i64(ptr %ptr, i64 -8)
store <16 x i8> zeroinitializer, ptr %aligned.0, align 1
store <16 x i8> zeroinitializer, ptr %aligned.1, align 1
store <16 x i8> zeroinitializer, ptr %aligned.2, align 1
ret void
}
; ------------------------------------------------------------------------------
; Overaligned pointer
; ------------------------------------------------------------------------------
; Underlying alignment greater than alignment forced by ptrmask
define void @ptrmask_overaligned(ptr align 16 %ptr) {
; CHECK-LABEL: define void @ptrmask_overaligned
; CHECK-SAME: (ptr align 16 [[PTR:%.*]]) {
; CHECK-NEXT: [[ALIGNED:%.*]] = call ptr @llvm.ptrmask.p0.i64(ptr [[PTR]], i64 -8)
; CHECK-NEXT: [[LOAD:%.*]] = load <16 x i8>, ptr [[ALIGNED]], align 16
; CHECK-NEXT: store <16 x i8> zeroinitializer, ptr [[ALIGNED]], align 16
; CHECK-NEXT: ret void
;
%aligned = call ptr @llvm.ptrmask.p0.i64(ptr %ptr, i64 -8)
%load = load <16 x i8>, ptr %aligned, align 1
store <16 x i8> zeroinitializer, ptr %aligned, align 1
ret void
}
define i8 @smaller_index_type(ptr addrspace(1) %ptr) {
; CHECK-LABEL: define i8 @smaller_index_type
; CHECK-SAME: (ptr addrspace(1) [[PTR:%.*]]) {
; CHECK-NEXT: [[PTR2:%.*]] = call ptr addrspace(1) @llvm.ptrmask.p1.i32(ptr addrspace(1) [[PTR]], i32 -4)
; CHECK-NEXT: [[LOAD:%.*]] = load i8, ptr addrspace(1) [[PTR2]], align 4
; CHECK-NEXT: ret i8 [[LOAD]]
;
%ptr2 = call ptr addrspace(1) @llvm.ptrmask.p1.i32(ptr addrspace(1) %ptr, i32 -4)
%load = load i8, ptr addrspace(1) %ptr2, align 1
ret i8 %load
}
declare ptr @llvm.ptrmask.p0.i64(ptr, i64)
declare ptr addrspace(1) @llvm.ptrmask.p1.i32(ptr addrspace(1), i32)