| Paul Robinson | 05efe0f | 2019-03-06 19:57:43 +0000 | [diff] [blame] | 1 | ; Verify that a ud2 is generated after the call to __stack_chk_fail. |
| 2 | |
| 3 | ; RUN: llc < %s -mtriple=x86_64-scei-ps4 -enable-selectiondag-sp=false -O0 -o - | FileCheck %s |
| 4 | ; RUN: llc < %s -mtriple=x86_64-scei-ps4 -enable-selectiondag-sp=false -O2 -o - | FileCheck %s |
| 5 | ; RUN: llc < %s -mtriple=x86_64-scei-ps4 -enable-selectiondag-sp=true -O0 -o - | FileCheck %s |
| 6 | ; RUN: llc < %s -mtriple=x86_64-scei-ps4 -enable-selectiondag-sp=true -O2 -o - | FileCheck %s |
| 7 | |
| 8 | |
| 9 | ; CHECK: check_input: |
| 10 | ; CHECK: callq __stack_chk_fail |
| 11 | ; CHECK-NEXT: ud2 |
| 12 | ; CHECK: .size check_input |
| 13 | ; CHECK-NEXT: .cfi_endproc |
| 14 | |
| 15 | @.str = private unnamed_addr constant [37 x i8] c"????????????????????????????????????\00", align 1 |
| 16 | |
| 17 | define signext i8 @check_input(i8* %input) nounwind uwtable ssp { |
| 18 | entry: |
| 19 | %input.addr = alloca i8*, align 8 |
| 20 | %buf = alloca [16 x i8], align 16 |
| 21 | store i8* %input, i8** %input.addr, align 8 |
| 22 | %arraydecay = getelementptr inbounds [16 x i8], [16 x i8]* %buf, i32 0, i32 0 |
| 23 | %0 = load i8*, i8** %input.addr, align 8 |
| 24 | %call = call i8* @strcpy(i8* %arraydecay, i8* %0) nounwind |
| 25 | %arrayidx = getelementptr inbounds [16 x i8], [16 x i8]* %buf, i32 0, i64 0 |
| 26 | %1 = load i8, i8* %arrayidx, align 1 |
| 27 | ret i8 %1 |
| 28 | } |
| 29 | |
| 30 | declare i8* @strcpy(i8*, i8*) nounwind |
| 31 | |
| 32 | define i32 @main() nounwind uwtable ssp { |
| 33 | entry: |
| 34 | %retval = alloca i32, align 4 |
| 35 | store i32 0, i32* %retval |
| 36 | %call = call signext i8 @check_input(i8* getelementptr inbounds ([37 x i8], [37 x i8]* @.str, i32 0, i32 0)) |
| 37 | %conv = sext i8 %call to i32 |
| 38 | ret i32 %conv |
| 39 | } |