122b0220fd
The data layout strings do not have any effect on llc tests and will become misleadingly out of date as we continue to update the canonical data layout, so remove them from the tests. Differential Revision: https://reviews.llvm.org/D105842
140 lines
4.1 KiB
LLVM
140 lines
4.1 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 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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