1 ; RUN: llc < %s -mtriple x86_64-apple-darwin11 -mcpu corei7 -filetype=obj -o - | llvm-objdump -d -unwind-info -s - | FileCheck %s 2 ; Regression test for http://llvm.org/bugs/show_bug.cgi?id=20800. 3 4 ; ModuleID = 'asan_report.ii' 5 target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" 6 target triple = "x86_64-apple-macosx10.9.0" 7 8 @.str = private unnamed_addr constant [3 x i8] c"=>\00", align 1 9 @.str1 = private unnamed_addr constant [3 x i8] c" \00", align 1 10 @.str2 = private unnamed_addr constant [6 x i8] c"%s%p:\00", align 1 11 12 ; CHECK: ___asan_report_error: 13 14 ; subq instruction starts at 0x0a, so the second byte of the compact encoding 15 ; (UNWIND_X86_64_FRAMELESS_STACK_SIZE in mach-o/compact_unwind_encoding.h) 16 ; must be 0x0d. 17 ; CHECK: {{a:.*subq.*%rsp}} 18 19 ; CHECK: Contents of __compact_unwind section 20 ; CHECK: ___asan_report_error 21 22 ; Because of incorrect push instruction size in X86AsmBackend.cpp the stack 23 ; size was also calculated incorrectly. 24 ; CHECK-NOT: {{compact encoding:.*0x0309f800}} 25 ; CHECK: {{compact encoding:.*0x030df800}} 26 27 define void @__asan_report_error() #0 { 28 %str.i = alloca i64, align 8 29 %stack = alloca [256 x i64], align 8 30 br label %print_shadow_bytes.exit.i 31 32 print_shadow_bytes.exit.i: ; preds = %print_shadow_bytes.exit.i, %0 33 %iv.i = phi i64 [ -5, %0 ], [ %iv.next.i, %print_shadow_bytes.exit.i ] 34 %reg15 = icmp eq i64 %iv.i, 0 35 %.str..str1.i = select i1 %reg15, [3 x i8]* @.str, [3 x i8]* @.str1 36 %reg16 = getelementptr inbounds [3 x i8], [3 x i8]* %.str..str1.i, i64 0, i64 0 37 %reg17 = shl i64 %iv.i, 1 38 %reg19 = inttoptr i64 %reg17 to i8* 39 call void (i64*, i8*, ...) @append(i64* %str.i, i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str2, i64 0, i64 0), i8* %reg16, i8* %reg19) 40 %iv.next.i = add nsw i64 %iv.i, 0 41 br label %print_shadow_bytes.exit.i 42 } 43 44 declare void @append(i64*, i8*, ...) 45 46 attributes #0 = { "no-frame-pointer-elim"="false" } 47
