1 ; RUN: opt < %s -scalarrepl -S | FileCheck %s 2 3 target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32-n8:16:32" 4 target triple = "i386-pc-linux-gnu" 5 6 7 ; PR3466 8 ; Off end of array, don't transform. 9 define i32 @test1() { 10 ; CHECK: @test1 11 ; CHECK-NOT: = alloca 12 %X = alloca [4 x i32] 13 %Y = getelementptr [4 x i32]* %X, i64 0, i64 6 ; <i32*> [#uses=2] 14 store i32 0, i32* %Y 15 %Z = load i32* %Y ; <i32> [#uses=1] 16 ret i32 %Z 17 } 18 19 20 ; Off end of array, don't transform. 21 define i32 @test2() nounwind { 22 entry: 23 ; CHECK: @test2 24 ; CHECK-NOT: = alloca 25 %yx2.i = alloca float, align 4 ; <float*> [#uses=1] 26 %yx26.i = bitcast float* %yx2.i to i64* ; <i64*> [#uses=1] 27 %0 = load i64* %yx26.i, align 8 ; <i64> [#uses=0] 28 unreachable 29 } 30 31 %base = type { i32, [0 x i8] } 32 %padded = type { %base, [1 x i32] } 33 34 ; PR5436 35 define void @test3() { 36 entry: 37 ; CHECK: @test3 38 ; CHECK-NOT: = alloca 39 ; CHECK: store i64 40 %var_1 = alloca %padded, align 8 ; <%padded*> [#uses=3] 41 %0 = getelementptr inbounds %padded* %var_1, i32 0, i32 0 ; <%base*> [#uses=2] 42 43 %p2 = getelementptr inbounds %base* %0, i32 0, i32 1, i32 0 ; <i8*> [#uses=1] 44 store i8 72, i8* %p2, align 1 45 46 ; 72 -> a[0]. 47 48 %callret = call %padded *@test3f() ; <i32> [#uses=2] 49 %callretcast = bitcast %padded* %callret to i8* ; <i8*> [#uses=1] 50 %var_11 = bitcast %padded* %var_1 to i8* ; <i8*> [#uses=1] 51 call void @llvm.memcpy.p0i8.p0i8.i32(i8* %callretcast, i8* %var_11, i32 8, i32 4, i1 false) 52 ret void 53 } 54 55 declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture, i8* nocapture, i32, i32, i1) nounwind 56 57 declare %padded* @test3f() 58
