1 ; RUN: llc < %s -mtriple=arm-linux-gnueabi 2 ; PR4528 3 4 define i32 @file_read_actor(i32 %desc, i32 %page, i32 %offset, i32 %size) nounwind optsize { 5 entry: 6 br i1 undef, label %fault_in_pages_writeable.exit, label %bb5.i 7 8 bb5.i: ; preds = %entry 9 %asmtmp.i = tail call i32 asm sideeffect "1:\09strbt\09$1,[$2]\0A2:\0A\09.section .fixup,\22ax\22\0A\09.align\092\0A3:\09mov\09$0, $3\0A\09b\092b\0A\09.previous\0A\09.section __ex_table,\22a\22\0A\09.align\093\0A\09.long\091b, 3b\0A\09.previous", "=r,r,r,i,0,~{cc}"(i8 0, i32 undef, i32 -14, i32 0) nounwind ; <i32> [#uses=1] 10 br label %fault_in_pages_writeable.exit 11 12 fault_in_pages_writeable.exit: ; preds = %bb5.i, %entry 13 %0 = phi i32 [ 0, %entry ], [ %asmtmp.i, %bb5.i ] ; <i32> [#uses=1] 14 %1 = icmp eq i32 %0, 0 ; <i1> [#uses=1] 15 br i1 %1, label %bb2, label %bb3 16 17 bb2: ; preds = %fault_in_pages_writeable.exit 18 unreachable 19 20 bb3: ; preds = %fault_in_pages_writeable.exit 21 %2 = tail call i32 @__copy_to_user(i8* undef, i8* undef, i32 undef) nounwind ; <i32> [#uses=0] 22 unreachable 23 } 24 25 declare i32 @__copy_to_user(i8*, i8*, i32) 26
