1 ; RUN: llc -march=hexagon -O2 -mno-pairing -mno-compound < %s | FileCheck %s 2 3 ; Test to see if we inline calls to memcpy/memmove when 4 ; the array size is small. 5 6 target triple = "hexagon-unknown--elf" 7 8 ; CHECK-LABEL: f0: 9 ; CHECK-DAG: [[REG1:r[0-9]*]] = memw(r{{[0-9]*}}+#0) 10 ; CHECK-DAG: [[REG2:r[0-9]*]] = memuh(r{{[0-9]*}}+#4) 11 ; CHECK-DAG: [[REG3:r[0-9]*]] = memub(r{{[0-9]*}}+#6) 12 ; CHECK-DAG: memw(r{{[0-9]*}}+#0) = [[REG1]] 13 ; CHECK-DAG: memh(r{{[0-9]*}}+#4) = [[REG2]] 14 ; CHECK-DAG: memb(r{{[0-9]*}}+#6) = [[REG3]] 15 16 define i32 @f0(i32* %a0) #0 { 17 b0: 18 %v0 = alloca [10 x i32], align 8 19 %v1 = bitcast [10 x i32]* %v0 to i8* 20 %v2 = bitcast i32* %a0 to i8* 21 call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 4 %v1, i8* align 4 %v2, i32 7, i1 false) 22 %v3 = getelementptr inbounds [10 x i32], [10 x i32]* %v0, i32 0, i32 0 23 call void @f1(i32* %v3, i32* %a0) #0 24 ret i32 0 25 } 26 27 declare void @f1(i32*, i32*) 28 29 ; CHECK-LABEL: f2: 30 ; CHECK-DAG: [[REG4:r[0-9]*]] = memub(r{{[0-9]*}}+#6) 31 ; CHECK-DAG: [[REG5:r[0-9]*]] = memuh(r{{[0-9]*}}+#4) 32 ; CHECK-DAG: [[REG6:r[0-9]*]] = memw(r{{[0-9]*}}+#0) 33 ; CHECK-DAG: memw(r{{[0-9]*}}+#0) = [[REG6]] 34 ; CHECK-DAG: memh(r{{[0-9]*}}+#4) = [[REG5]] 35 ; CHECK-DAG: memb(r{{[0-9]*}}+#6) = [[REG4]] 36 37 define i32 @f2(i32* %a0, i32* %a1) #0 { 38 b0: 39 %v0 = bitcast i32* %a1 to i8* 40 %v1 = bitcast i32* %a0 to i8* 41 call void @llvm.memmove.p0i8.p0i8.i32(i8* align 4 %v0, i8* align 4 %v1, i32 7, i1 false) 42 tail call void @f1(i32* %a1, i32* %a0) #0 43 ret i32 0 44 } 45 46 declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture writeonly, i8* nocapture readonly, i32, i1) #1 47 declare void @llvm.memmove.p0i8.p0i8.i32(i8* nocapture, i8* nocapture readonly, i32, i1) #1 48 49 attributes #0 = { nounwind } 50 attributes #1 = { argmemonly nounwind } 51
