1 ; RUN: llc < %s -march=x86-64 2 ; PR4297 3 ; RUN: opt -S < %s -codegenprepare | FileCheck %s 4 5 target datalayout = 6 "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128" 7 target triple = "x86_64-unknown-linux-gnu" 8 %"byte[]" = type { i64, i8* } 9 %"char[][]" = type { i64, %"byte[]"* } 10 @.str = external constant [7 x i8] ; <[7 x i8]*> [#uses=1] 11 12 ; CHECK-LABEL: @_Dmain 13 ; CHECK: load i8, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str, i32 0, i32 0) 14 ; CHECK: ret 15 define fastcc i32 @_Dmain(%"char[][]" %unnamed) { 16 entry: 17 %tmp = getelementptr [7 x i8], [7 x i8]* @.str, i32 0, i32 0 ; <i8*> [#uses=1] 18 br i1 undef, label %foreachbody, label %foreachend 19 20 foreachbody: ; preds = %entry 21 %tmp4 = getelementptr i8, i8* %tmp, i32 undef ; <i8*> [#uses=1] 22 %tmp5 = load i8, i8* %tmp4 ; <i8> [#uses=0] 23 unreachable 24 25 foreachend: ; preds = %entry 26 ret i32 0 27 } 28 29