1; RUN: llc < %s -mtriple=thumbv6m-eabi -verify-machineinstrs -o - | FileCheck %s 2target datalayout = "e-m:e-p:32:32-i1:8:32-i8:8:32-i16:16:32-i64:64-v128:64:128-a:0:32-n32-S64" 3target triple = "thumbv6m-none--eabi" 4 5@a = external global i32* 6@b = external global i32* 7 8; Function Attrs: nounwind 9define void @foo24() #0 { 10entry: 11; CHECK-LABEL: foo24: 12; CHECK: ldr r[[LB:[0-9]]], .LCPI 13; CHECK: adds r[[NLB:[0-9]]], r[[LB]], #4 14; CHECK: ldr r[[SB:[0-9]]], .LCPI 15; CHECK: adds r[[NSB:[0-9]]], r[[SB]], #4 16; CHECK-NEXT: ldm r[[NLB]]!, {r[[R1:[0-9]]], r[[R2:[0-9]]], r[[R3:[0-9]]]} 17; CHECK-NEXT: stm r[[NSB]]!, {r[[R1]], r[[R2]], r[[R3]]} 18; CHECK-NEXT: ldm r[[NLB]]!, {r[[R1:[0-9]]], r[[R2:[0-9]]], r[[R3:[0-9]]]} 19; CHECK-NEXT: stm r[[NSB]]!, {r[[R1]], r[[R2]], r[[R3]]} 20 %0 = load i32*, i32** @a, align 4 21 %arrayidx = getelementptr inbounds i32, i32* %0, i32 1 22 %1 = bitcast i32* %arrayidx to i8* 23 %2 = load i32*, i32** @b, align 4 24 %arrayidx1 = getelementptr inbounds i32, i32* %2, i32 1 25 %3 = bitcast i32* %arrayidx1 to i8* 26 tail call void @llvm.memcpy.p0i8.p0i8.i32(i8* %1, i8* %3, i32 24, i32 4, i1 false) 27 ret void 28} 29 30define void @foo28() #0 { 31entry: 32; CHECK-LABEL: foo28: 33; CHECK: ldr r[[LB:[0-9]]], .LCPI 34; CHECK: adds r[[NLB:[0-9]]], r[[LB]], #4 35; CHECK: ldr r[[SB:[0-9]]], .LCPI 36; CHECK: adds r[[NSB:[0-9]]], r[[SB]], #4 37; CHECK-NEXT: ldm r[[NLB]]!, {r[[R1:[0-9]]], r[[R2:[0-9]]], r[[R3:[0-9]]]} 38; CHECK-NEXT: stm r[[NSB]]!, {r[[R1]], r[[R2]], r[[R3]]} 39; CHECK-NEXT: ldm r[[NLB]]!, {r[[R1:[0-9]]], r[[R2:[0-9]]], r[[R3:[0-9]]], r[[R4:[0-9]]]} 40; CHECK-NEXT: stm r[[NSB]]!, {r[[R1]], r[[R2]], r[[R3]], r[[R4]]} 41 %0 = load i32*, i32** @a, align 4 42 %arrayidx = getelementptr inbounds i32, i32* %0, i32 1 43 %1 = bitcast i32* %arrayidx to i8* 44 %2 = load i32*, i32** @b, align 4 45 %arrayidx1 = getelementptr inbounds i32, i32* %2, i32 1 46 %3 = bitcast i32* %arrayidx1 to i8* 47 tail call void @llvm.memcpy.p0i8.p0i8.i32(i8* %1, i8* %3, i32 28, i32 4, i1 false) 48 ret void 49} 50 51define void @foo32() #0 { 52entry: 53; CHECK-LABEL: foo32: 54; CHECK: ldr r[[LB:[0-9]]], .LCPI 55; CHECK: adds r[[NLB:[0-9]]], r[[LB]], #4 56; CHECK: ldr r[[SB:[0-9]]], .LCPI 57; CHECK: adds r[[NSB:[0-9]]], r[[SB]], #4 58; CHECK-NEXT: ldm r[[NLB]]!, {r[[R1:[0-9]]], r[[R2:[0-9]]], r[[R3:[0-9]]], r[[R4:[0-9]]]} 59; CHECK-NEXT: stm r[[NSB]]!, {r[[R1]], r[[R2]], r[[R3]], r[[R4]]} 60; CHECK-NEXT: ldm r[[NLB]]!, {r[[R1:[0-9]]], r[[R2:[0-9]]], r[[R3:[0-9]]], r[[R4:[0-9]]]} 61; CHECK-NEXT: stm r[[NSB]]!, {r[[R1]], r[[R2]], r[[R3]], r[[R4]]} 62 %0 = load i32*, i32** @a, align 4 63 %arrayidx = getelementptr inbounds i32, i32* %0, i32 1 64 %1 = bitcast i32* %arrayidx to i8* 65 %2 = load i32*, i32** @b, align 4 66 %arrayidx1 = getelementptr inbounds i32, i32* %2, i32 1 67 %3 = bitcast i32* %arrayidx1 to i8* 68 tail call void @llvm.memcpy.p0i8.p0i8.i32(i8* %1, i8* %3, i32 32, i32 4, i1 false) 69 ret void 70} 71 72define void @foo36() #0 { 73entry: 74; CHECK-LABEL: foo36: 75; CHECK: ldr r[[LB:[0-9]]], .LCPI 76; CHECK: adds r[[NLB:[0-9]]], r[[LB]], #4 77; CHECK: ldr r[[SB:[0-9]]], .LCPI 78; CHECK: adds r[[NSB:[0-9]]], r[[SB]], #4 79; CHECK-NEXT: ldm r[[NLB]]!, {r[[R1:[0-9]]], r[[R2:[0-9]]], r[[R3:[0-9]]]} 80; CHECK-NEXT: stm r[[NSB]]!, {r[[R1]], r[[R2]], r[[R3]]} 81; CHECK-NEXT: ldm r[[NLB]]!, {r[[R1:[0-9]]], r[[R2:[0-9]]], r[[R3:[0-9]]]} 82; CHECK-NEXT: stm r[[NSB]]!, {r[[R1]], r[[R2]], r[[R3]]} 83; CHECK-NEXT: ldm r[[NLB]]!, {r[[R1:[0-9]]], r[[R2:[0-9]]], r[[R3:[0-9]]]} 84; CHECK-NEXT: stm r[[NSB]]!, {r[[R1]], r[[R2]], r[[R3]]} 85 %0 = load i32*, i32** @a, align 4 86 %arrayidx = getelementptr inbounds i32, i32* %0, i32 1 87 %1 = bitcast i32* %arrayidx to i8* 88 %2 = load i32*, i32** @b, align 4 89 %arrayidx1 = getelementptr inbounds i32, i32* %2, i32 1 90 %3 = bitcast i32* %arrayidx1 to i8* 91 tail call void @llvm.memcpy.p0i8.p0i8.i32(i8* %1, i8* %3, i32 36, i32 4, i1 false) 92 ret void 93} 94 95; Function Attrs: nounwind 96declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture, i8* nocapture readonly, i32, i32, i1) #1 97