mirror of
https://github.com/RPCS3/llvm-mirror.git
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bd828c852a
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
141 lines
4.2 KiB
LLVM
141 lines
4.2 KiB
LLVM
; RUN: llc < %s -asm-verbose=false -disable-wasm-fallthrough-return-opt -wasm-disable-explicit-locals -wasm-keep-registers -tail-dup-placement=0 | FileCheck %s
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; Test memcpy, memmove, and memset intrinsics.
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target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
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target triple = "wasm32-unknown-unknown"
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declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture, i8* nocapture readonly, i32, i1)
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declare void @llvm.memmove.p0i8.p0i8.i32(i8* nocapture, i8* nocapture readonly, i32, i1)
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declare void @llvm.memset.p0i8.i32(i8* nocapture, i8, i32, i1)
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; Test that return values are optimized.
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; CHECK-LABEL: copy_yes:
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; CHECK: call $push0=, memcpy, $0, $1, $2{{$}}
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; CHECK-NEXT: return $pop0{{$}}
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define i8* @copy_yes(i8* %dst, i8* %src, i32 %len) {
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call void @llvm.memcpy.p0i8.p0i8.i32(i8* %dst, i8* %src, i32 %len, i1 false)
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ret i8* %dst
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}
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; CHECK-LABEL: copy_no:
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; CHECK: call $drop=, memcpy, $0, $1, $2{{$}}
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; CHECK-NEXT: return{{$}}
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define void @copy_no(i8* %dst, i8* %src, i32 %len) {
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call void @llvm.memcpy.p0i8.p0i8.i32(i8* %dst, i8* %src, i32 %len, i1 false)
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ret void
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}
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; CHECK-LABEL: move_yes:
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; CHECK: call $push0=, memmove, $0, $1, $2{{$}}
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; CHECK-NEXT: return $pop0{{$}}
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define i8* @move_yes(i8* %dst, i8* %src, i32 %len) {
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call void @llvm.memmove.p0i8.p0i8.i32(i8* %dst, i8* %src, i32 %len, i1 false)
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ret i8* %dst
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}
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; CHECK-LABEL: move_no:
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; CHECK: call $drop=, memmove, $0, $1, $2{{$}}
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; CHECK-NEXT: return{{$}}
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define void @move_no(i8* %dst, i8* %src, i32 %len) {
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call void @llvm.memmove.p0i8.p0i8.i32(i8* %dst, i8* %src, i32 %len, i1 false)
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ret void
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}
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; CHECK-LABEL: set_yes:
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; CHECK: call $push0=, memset, $0, $1, $2{{$}}
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; CHECK-NEXT: return $pop0{{$}}
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define i8* @set_yes(i8* %dst, i8 %src, i32 %len) {
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call void @llvm.memset.p0i8.i32(i8* %dst, i8 %src, i32 %len, i1 false)
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ret i8* %dst
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}
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; CHECK-LABEL: set_no:
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; CHECK: call $drop=, memset, $0, $1, $2{{$}}
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; CHECK-NEXT: return{{$}}
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define void @set_no(i8* %dst, i8 %src, i32 %len) {
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call void @llvm.memset.p0i8.i32(i8* %dst, i8 %src, i32 %len, i1 false)
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ret void
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}
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; CHECK-LABEL: frame_index:
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; CHECK: call $drop=, memset, $pop{{[0-9]+}}, $pop{{[0-9]+}}, $pop{{[0-9]+}}{{$}}
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; CHECK: call $push{{[0-9]+}}=, memset, ${{[0-9]+}}, $pop{{[0-9]+}}, $pop{{[0-9]+}}{{$}}
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; CHECK: return{{$}}
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define void @frame_index() {
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entry:
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%a = alloca [2048 x i8], align 16
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%b = alloca [2048 x i8], align 16
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%0 = getelementptr inbounds [2048 x i8], [2048 x i8]* %a, i32 0, i32 0
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%1 = getelementptr inbounds [2048 x i8], [2048 x i8]* %b, i32 0, i32 0
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call void @llvm.memset.p0i8.i32(i8* align 16 %0, i8 256, i32 1024, i1 false)
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call void @llvm.memset.p0i8.i32(i8* align 16 %1, i8 256, i32 1024, i1 false)
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ret void
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}
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; If the result value of memset doesn't get stackified, it should be marked
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; $drop. Note that we use a call to prevent tail dup so that we can test
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; this specific functionality.
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; CHECK-LABEL: drop_result:
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; CHECK: call $drop=, memset, $0, $1, $2
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declare i8* @def()
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declare void @block_tail_dup()
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define i8* @drop_result(i8* %arg, i8 %arg1, i32 %arg2, i32 %arg3, i32 %arg4) {
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bb:
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%tmp = icmp eq i32 %arg3, 0
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br i1 %tmp, label %bb5, label %bb9
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bb5:
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%tmp6 = icmp eq i32 %arg4, 0
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br i1 %tmp6, label %bb7, label %bb8
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bb7:
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call void @llvm.memset.p0i8.i32(i8* %arg, i8 %arg1, i32 %arg2, i1 false)
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br label %bb11
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bb8:
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br label %bb11
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bb9:
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%tmp10 = call i8* @def()
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br label %bb11
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bb11:
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%tmp12 = phi i8* [ %arg, %bb7 ], [ %arg, %bb8 ], [ %tmp10, %bb9 ]
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call void @block_tail_dup()
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ret i8* %tmp12
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}
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; This is the same as drop_result, except we let tail dup happen, so the
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; result of the memset *is* stackified.
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; CHECK-LABEL: tail_dup_to_reuse_result:
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; CHECK: call $push{{[0-9]+}}=, memset, $0, $1, $2
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define i8* @tail_dup_to_reuse_result(i8* %arg, i8 %arg1, i32 %arg2, i32 %arg3, i32 %arg4) {
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bb:
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%tmp = icmp eq i32 %arg3, 0
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br i1 %tmp, label %bb5, label %bb9
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bb5:
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%tmp6 = icmp eq i32 %arg4, 0
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br i1 %tmp6, label %bb7, label %bb8
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bb7:
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call void @llvm.memset.p0i8.i32(i8* %arg, i8 %arg1, i32 %arg2, i1 false)
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br label %bb11
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bb8:
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br label %bb11
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bb9:
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%tmp10 = call i8* @def()
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br label %bb11
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bb11:
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%tmp12 = phi i8* [ %arg, %bb7 ], [ %arg, %bb8 ], [ %tmp10, %bb9 ]
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ret i8* %tmp12
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}
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