9e978bb01c
Summary: This follows a previous patch that changes the X86 datalayout to represent mixed size pointers (32-bit sext, 32-bit zext, and 64-bit) with address spaces (https://reviews.llvm.org/D64931) This patch implements the address space cast lowering to the corresponding sign extension, zero extension, or truncate instructions. Related to https://bugs.llvm.org/show_bug.cgi?id=42359 Reviewers: rnk, craig.topper, RKSimon Subscribers: hiraditya, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D69639
129 lines
4.0 KiB
LLVM
129 lines
4.0 KiB
LLVM
; RUN: llc < %s | FileCheck --check-prefixes=CHECK %s
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; RUN: llc -O0 < %s | FileCheck --check-prefixes=CHECK %s
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; Source to regenerate:
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; struct Foo {
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; int * __ptr32 p32;
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; int * __ptr64 p64;
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; __attribute__((address_space(9))) int *p_other;
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; };
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; void use_foo(Foo *f);
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; void test_sign_ext(Foo *f, int * __ptr32 __sptr i) {
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; f->p64 = i;
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; use_foo(f);
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; }
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; void test_zero_ext(Foo *f, int * __ptr32 __uptr i) {
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; f->p64 = i;
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; use_foo(f);
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; }
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; void test_trunc(Foo *f, int * __ptr64 i) {
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; f->p32 = i;
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; use_foo(f);
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; }
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; void test_noop1(Foo *f, int * __ptr32 i) {
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; f->p32 = i;
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; use_foo(f);
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; }
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; void test_noop2(Foo *f, int * __ptr64 i) {
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; f->p64 = i;
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; use_foo(f);
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; }
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; void test_null_arg(Foo *f, int * __ptr32 i) {
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; test_noop1(f, 0);
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; }
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; void test_unrecognized(Foo *f, __attribute__((address_space(14))) int *i) {
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; f->p32 = (int * __ptr32)i;
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; use_foo(f);
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; }
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;
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; $ clang -cc1 -triple x86_64-windows-msvc -fms-extensions -O2 -S t.cpp
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target datalayout = "e-m:w-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-windows-msvc"
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%struct.Foo = type { i32 addrspace(270)*, i32*, i32 addrspace(9)* }
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declare dso_local void @use_foo(%struct.Foo*)
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define dso_local void @test_sign_ext(%struct.Foo* %f, i32 addrspace(270)* %i) {
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; CHECK-LABEL: test_sign_ext
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; CHECK: movslq %edx, %rax
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entry:
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%0 = addrspacecast i32 addrspace(270)* %i to i32*
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%p64 = getelementptr inbounds %struct.Foo, %struct.Foo* %f, i64 0, i32 1
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store i32* %0, i32** %p64, align 8
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tail call void @use_foo(%struct.Foo* %f)
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ret void
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}
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define dso_local void @test_zero_ext(%struct.Foo* %f, i32 addrspace(271)* %i) {
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; CHECK-LABEL: test_zero_ext
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; CHECK: movl %edx, %eax
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entry:
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%0 = addrspacecast i32 addrspace(271)* %i to i32*
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%p64 = getelementptr inbounds %struct.Foo, %struct.Foo* %f, i64 0, i32 1
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store i32* %0, i32** %p64, align 8
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tail call void @use_foo(%struct.Foo* %f)
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ret void
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}
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define dso_local void @test_trunc(%struct.Foo* %f, i32* %i) {
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; CHECK-LABEL: test_trunc
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; CHECK: movl %edx, (%rcx)
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entry:
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%0 = addrspacecast i32* %i to i32 addrspace(270)*
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%p32 = getelementptr inbounds %struct.Foo, %struct.Foo* %f, i64 0, i32 0
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store i32 addrspace(270)* %0, i32 addrspace(270)** %p32, align 8
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tail call void @use_foo(%struct.Foo* %f)
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ret void
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}
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define dso_local void @test_noop1(%struct.Foo* %f, i32 addrspace(270)* %i) {
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; CHECK-LABEL: test_noop1
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; CHECK: movl %edx, (%rcx)
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entry:
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%p32 = getelementptr inbounds %struct.Foo, %struct.Foo* %f, i64 0, i32 0
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store i32 addrspace(270)* %i, i32 addrspace(270)** %p32, align 8
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tail call void @use_foo(%struct.Foo* %f)
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ret void
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}
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define dso_local void @test_noop2(%struct.Foo* %f, i32* %i) {
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; CHECK-LABEL: test_noop2
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; CHECK: movq %rdx, 8(%rcx)
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entry:
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%p64 = getelementptr inbounds %struct.Foo, %struct.Foo* %f, i64 0, i32 1
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store i32* %i, i32** %p64, align 8
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tail call void @use_foo(%struct.Foo* %f)
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ret void
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}
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; Test that null can be passed as a 32-bit pointer.
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define dso_local void @test_null_arg(%struct.Foo* %f) {
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entry:
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call void @test_noop1(%struct.Foo* %f, i32 addrspace(270)* null)
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ret void
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}
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; Test casts between unrecognized address spaces.
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define void @test_unrecognized(%struct.Foo* %f, i32 addrspace(14)* %i) {
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; CHECK-LABEL: test_unrecognized
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; CHECK: movl %edx, (%rcx)
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entry:
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%0 = addrspacecast i32 addrspace(14)* %i to i32 addrspace(270)*
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%p32 = getelementptr inbounds %struct.Foo, %struct.Foo* %f, i64 0, i32 0
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store i32 addrspace(270)* %0, i32 addrspace(270)** %p32, align 8
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tail call void @use_foo(%struct.Foo* %f)
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ret void
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}
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define void @test_unrecognized2(%struct.Foo* %f, i32 addrspace(271)* %i) {
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; CHECK-LABEL: test_unrecognized2
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; CHECK: movl %edx, %eax
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entry:
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%0 = addrspacecast i32 addrspace(271)* %i to i32 addrspace(9)*
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%p32 = getelementptr inbounds %struct.Foo, %struct.Foo* %f, i64 0, i32 2
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store i32 addrspace(9)* %0, i32 addrspace(9)** %p32, align 8
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tail call void @use_foo(%struct.Foo* %f)
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ret void
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}
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