| Dan Gohman | bdf08d5 | 2016-01-26 04:01:11 +0000 | [diff] [blame] | 1 | ; RUN: llc < %s -asm-verbose=false | FileCheck %s |
| 2 | |
| 3 | ; Test memcpy, memmove, and memset intrinsics. |
| 4 | |
| 5 | target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128" |
| 6 | target triple = "wasm32-unknown-unknown" |
| 7 | |
| 8 | declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture, i8* nocapture readonly, i32, i32, i1) |
| 9 | declare void @llvm.memmove.p0i8.p0i8.i32(i8* nocapture, i8* nocapture readonly, i32, i32, i1) |
| 10 | declare void @llvm.memset.p0i8.i32(i8* nocapture, i8, i32, i32, i1) |
| 11 | |
| 12 | ; Test that return values are optimized. |
| 13 | |
| 14 | ; CHECK-LABEL: copy_yes: |
| 15 | ; CHECK: i32.call $push0=, memcpy@FUNCTION, $0, $1, $2{{$}} |
| 16 | ; CHECK-NEXT: return $pop0{{$}} |
| 17 | define i8* @copy_yes(i8* %dst, i8* %src, i32 %len) { |
| 18 | call void @llvm.memcpy.p0i8.p0i8.i32(i8* %dst, i8* %src, i32 %len, i32 1, i1 false) |
| 19 | ret i8* %dst |
| 20 | } |
| 21 | |
| 22 | ; CHECK-LABEL: copy_no: |
| 23 | ; CHECK: i32.call $discard=, memcpy@FUNCTION, $0, $1, $2{{$}} |
| 24 | ; CHECK-NEXT: return{{$}} |
| 25 | define void @copy_no(i8* %dst, i8* %src, i32 %len) { |
| 26 | call void @llvm.memcpy.p0i8.p0i8.i32(i8* %dst, i8* %src, i32 %len, i32 1, i1 false) |
| 27 | ret void |
| 28 | } |
| 29 | |
| 30 | ; CHECK-LABEL: move_yes: |
| 31 | ; CHECK: i32.call $push0=, memmove@FUNCTION, $0, $1, $2{{$}} |
| 32 | ; CHECK-NEXT: return $pop0{{$}} |
| 33 | define i8* @move_yes(i8* %dst, i8* %src, i32 %len) { |
| 34 | call void @llvm.memmove.p0i8.p0i8.i32(i8* %dst, i8* %src, i32 %len, i32 1, i1 false) |
| 35 | ret i8* %dst |
| 36 | } |
| 37 | |
| 38 | ; CHECK-LABEL: move_no: |
| 39 | ; CHECK: i32.call $discard=, memmove@FUNCTION, $0, $1, $2{{$}} |
| 40 | ; CHECK-NEXT: return{{$}} |
| 41 | define void @move_no(i8* %dst, i8* %src, i32 %len) { |
| 42 | call void @llvm.memmove.p0i8.p0i8.i32(i8* %dst, i8* %src, i32 %len, i32 1, i1 false) |
| 43 | ret void |
| 44 | } |
| 45 | |
| 46 | ; CHECK-LABEL: set_yes: |
| 47 | ; CHECK: i32.call $push0=, memset@FUNCTION, $0, $1, $2{{$}} |
| 48 | ; CHECK-NEXT: return $pop0{{$}} |
| 49 | define i8* @set_yes(i8* %dst, i8 %src, i32 %len) { |
| 50 | call void @llvm.memset.p0i8.i32(i8* %dst, i8 %src, i32 %len, i32 1, i1 false) |
| 51 | ret i8* %dst |
| 52 | } |
| 53 | |
| 54 | ; CHECK-LABEL: set_no: |
| 55 | ; CHECK: i32.call $discard=, memset@FUNCTION, $0, $1, $2{{$}} |
| 56 | ; CHECK-NEXT: return{{$}} |
| 57 | define void @set_no(i8* %dst, i8 %src, i32 %len) { |
| 58 | call void @llvm.memset.p0i8.i32(i8* %dst, i8 %src, i32 %len, i32 1, i1 false) |
| 59 | ret void |
| 60 | } |
| JF Bastien | 1a6c760 | 2016-01-26 20:22:42 +0000 | [diff] [blame^] | 61 | |
| 62 | ; CHECK-LABEL: frame_index: |
| 63 | ; CHECK: i32.call $discard=, memset@FUNCTION, $3, $pop1, $pop0{{$}} |
| 64 | ; CHECK: return{{$}} |
| 65 | define void @frame_index() { |
| 66 | entry: |
| 67 | %a = alloca [2048 x i8], align 16 |
| 68 | %0 = getelementptr inbounds [2048 x i8], [2048 x i8]* %a, i32 0, i32 0 |
| 69 | call void @llvm.memset.p0i8.i32(i8* %0, i8 256, i32 1024, i32 16, i1 false) |
| 70 | ret void |
| 71 | } |