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llvm-mirror/test/CodeGen/WebAssembly/global.ll
Thomas Lively bd828c852a [WebAssembly] Replace all calls with generalized multivalue calls 
Summary:
Extends the multivalue call infrastructure to tail calls, removes all
legacy calls specialized for particular result types, and removes the
CallIndirectFixup pass, since all indirect call arguments are now
fixed up directly in the post-insertion hook.

In order to keep supporting pretty-printed defs and uses in test
expectations, MCInstLower now inserts an immediate containing the
number of defs for each call and call_indirect. The InstPrinter is
updated to query this immediate if it is present and determine which
MCOperands are defs and uses accordingly.

Depends on D72902.

Reviewers: aheejin

Subscribers: dschuff, mgorny, sbc100, jgravelle-google, hiraditya, sunfish, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D74192
2020-02-18 15:55:20 -08:00

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; RUN: llc < %s -asm-verbose=false -disable-wasm-fallthrough-return-opt -wasm-disable-explicit-locals -wasm-keep-registers -mattr=-atomics | FileCheck %s
; RUN: llc < %s -asm-verbose=false -disable-wasm-fallthrough-return-opt -wasm-disable-explicit-locals -wasm-keep-registers -mattr=+atomics | FileCheck %s
; Test that globals assemble as expected.
target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
target triple = "wasm32-unknown-unknown"
; CHECK-NOT: llvm.used
; CHECK-NOT: llvm.metadata
@llvm.used = appending global [1 x i32*] [i32* @g], section "llvm.metadata"
; CHECK: foo:
; CHECK: i32.const $push0=, 0{{$}}
; CHECK-NEXT: i32.load $push1=, answer($pop0){{$}}
; CHECK-NEXT: return $pop1{{$}}
define i32 @foo() {
%a = load i32, i32* @answer
ret i32 %a
}
; CHECK-LABEL: call_memcpy:
; CHECK-NEXT: .functype call_memcpy (i32, i32, i32) -> (i32){{$}}
; CHECK-NEXT: call $push0=, memcpy, $0, $1, $2{{$}}
; CHECK-NEXT: return $pop0{{$}}
declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture, i8* nocapture readonly, i32, i1)
define i8* @call_memcpy(i8* %p, i8* nocapture readonly %q, i32 %n) {
tail call void @llvm.memcpy.p0i8.p0i8.i32(i8* %p, i8* %q, i32 %n, i1 false)
ret i8* %p
}
; CHECK: .type .Lg,@object
; CHECK: .p2align 2{{$}}
; CHECK-NEXT: .Lg:
; CHECK-NEXT: .int32 1337{{$}}
; CHECK-NEXT: .size .Lg, 4{{$}}
@g = private global i32 1337
; CHECK-LABEL: ud:
; CHECK-NEXT: .skip 4{{$}}
; CHECK-NEXT: .size ud, 4{{$}}
@ud = internal global i32 undef
; CHECK: .type nil,@object
; CHECK: .p2align 2
; CHECK: nil:
; CHECK: .int32 0
; CHECK: .size nil, 4
@nil = internal global i32 zeroinitializer
; CHECK: .type z,@object
; CHECK: .p2align 2
; CHECK: z:
; CHECK: .int32 0
; CHECK: .size z, 4
@z = internal global i32 0
; CHECK: .type one,@object
; CHECK: .p2align 2{{$}}
; CHECK-NEXT: one:
; CHECK-NEXT: .int32 1{{$}}
; CHECK-NEXT: .size one, 4{{$}}
@one = internal global i32 1
; CHECK: .type answer,@object
; CHECK: .p2align 2{{$}}
; CHECK-NEXT: answer:
; CHECK-NEXT: .int32 42{{$}}
; CHECK-NEXT: .size answer, 4{{$}}
@answer = internal global i32 42
; CHECK: .type u32max,@object
; CHECK: .p2align 2{{$}}
; CHECK-NEXT: u32max:
; CHECK-NEXT: .int32 4294967295{{$}}
; CHECK-NEXT: .size u32max, 4{{$}}
@u32max = internal global i32 -1
; CHECK: .type ud64,@object
; CHECK: .p2align 3{{$}}
; CHECK-NEXT: ud64:
; CHECK-NEXT: .skip 8{{$}}
; CHECK-NEXT: .size ud64, 8{{$}}
@ud64 = internal global i64 undef
; CHECK: .type nil64,@object
; CHECK: .p2align 3{{$}}
; CHECK-NEXT: nil64:
; CHECK-NEXT: .int64 0{{$}}
; CHECK-NEXT: .size nil64, 8{{$}}
@nil64 = internal global i64 zeroinitializer
; CHECK: .type z64,@object
; CHECK: .p2align 3{{$}}
; CHECK-NEXT: z64:
; CHECK-NEXT: .int64 0{{$}}
; CHECK-NEXT: .size z64, 8{{$}}
@z64 = internal global i64 0
; CHECK: .type twoP32,@object
; CHECK: .p2align 3{{$}}
; CHECK-NEXT: twoP32:
; CHECK-NEXT: .int64 4294967296{{$}}
; CHECK-NEXT: .size twoP32, 8{{$}}
@twoP32 = internal global i64 4294967296
; CHECK: .type u64max,@object
; CHECK: .p2align 3{{$}}
; CHECK-NEXT: u64max:
; CHECK-NEXT: .int64 -1{{$}}
; CHECK-NEXT: .size u64max, 8{{$}}
@u64max = internal global i64 -1
; CHECK: .type f32ud,@object
; CHECK: .p2align 2{{$}}
; CHECK-NEXT: f32ud:
; CHECK-NEXT: .skip 4{{$}}
; CHECK-NEXT: .size f32ud, 4{{$}}
@f32ud = internal global float undef
; CHECK: .type f32nil,@object
; CHECK: .p2align 2{{$}}
; CHECK-NEXT: f32nil:
; CHECK-NEXT: .int32 0x00000000{{$}}
; CHECK-NEXT: .size f32nil, 4{{$}}
@f32nil = internal global float zeroinitializer
; CHECK: .type f32z,@object
; CHECK: .p2align 2{{$}}
; CHECK-NEXT: f32z:
; CHECK-NEXT: .int32 0x00000000{{$}}
; CHECK-NEXT: .size f32z, 4{{$}}
@f32z = internal global float 0.0
; CHECK: .type f32nz,@object
; CHECK: .p2align 2{{$}}
; CHECK: f32nz:
; CHECK: .int32 0x80000000{{$}}
; CHECK: .size f32nz, 4{{$}}
@f32nz = internal global float -0.0
; CHECK: .type f32two,@object
; CHECK: .p2align 2{{$}}
; CHECK-NEXT: f32two:
; CHECK-NEXT: .int32 0x40000000{{$}}
; CHECK-NEXT: .size f32two, 4{{$}}
@f32two = internal global float 2.0
; CHECK: .type f64ud,@object
; CHECK: .p2align 3{{$}}
; CHECK-NEXT: f64ud:
; CHECK-NEXT: .skip 8{{$}}
; CHECK-NEXT: .size f64ud, 8{{$}}
@f64ud = internal global double undef
; CHECK: .type f64nil,@object
; CHECK: .p2align 3{{$}}
; CHECK-NEXT: f64nil:
; CHECK-NEXT: .int64 0x0000000000000000{{$}}
; CHECK-NEXT: .size f64nil, 8{{$}}
@f64nil = internal global double zeroinitializer
; CHECK: .type f64z,@object
; CHECK: .p2align 3{{$}}
; CHECK-NEXT: f64z:
; CHECK-NEXT: .int64 0x0000000000000000{{$}}
; CHECK-NEXT: .size f64z, 8{{$}}
@f64z = internal global double 0.0
; CHECK: .type f64nz,@object
; CHECK: .p2align 3{{$}}
; CHECK-NEXT: f64nz:
; CHECK-NEXT: .int64 0x8000000000000000{{$}}
; CHECK-NEXT: .size f64nz, 8{{$}}
@f64nz = internal global double -0.0
; CHECK: .type f64two,@object
; CHECK: .p2align 3{{$}}
; CHECK-NEXT: f64two:
; CHECK-NEXT: .int64 0x4000000000000000{{$}}
; CHECK-NEXT: .size f64two, 8{{$}}
@f64two = internal global double 2.0
; Indexing into a global array produces a relocation.
; CHECK: .type arr,@object
; CHECK: .type ptr,@object
; CHECK: ptr:
; CHECK-NEXT: .int32 arr+80
; CHECK-NEXT: .size ptr, 4
@arr = global [128 x i32] zeroinitializer, align 16
@ptr = global i32* getelementptr inbounds ([128 x i32], [128 x i32]* @arr, i32 0, i32 20), align 4
; Constant global.
; CHECK: .type rom,@object{{$}}
; CHECK: .section .rodata.rom,""
; CHECK: .globl rom{{$}}
; CHECK: .p2align 4{{$}}
; CHECK: rom:
; CHECK: .skip 512{{$}}
; CHECK: .size rom, 512{{$}}
@rom = constant [128 x i32] zeroinitializer, align 16
; CHECK: .type array,@object
; CHECK: array:
; CHECK-NEXT: .skip 8
; CHECK-NEXT: .size array, 8
; CHECK: .type pointer_to_array,@object
; CHECK-NEXT: .section .rodata.pointer_to_array,""
; CHECK-NEXT: .globl pointer_to_array
; CHECK-NEXT: .p2align 2
; CHECK-NEXT: pointer_to_array:
; CHECK-NEXT: .int32 array+4
; CHECK-NEXT: .size pointer_to_array, 4
@array = internal constant [8 x i8] zeroinitializer, align 1
@pointer_to_array = constant i8* getelementptr inbounds ([8 x i8], [8 x i8]* @array, i32 0, i32 4), align 4
; Handle external objects with opaque type.
%struct.ASTRUCT = type opaque
@g_struct = external global %struct.ASTRUCT, align 1
define i32 @address_of_opaque() {
ret i32 ptrtoint (%struct.ASTRUCT* @g_struct to i32)
}
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