1 ; RUN: llc -mtriple=i386-linux < %s -o - | FileCheck --check-prefix=LINUX-I386 %s 2 ; RUN: llc -mtriple=x86_64-linux < %s -o - | FileCheck --check-prefix=LINUX-X64 %s 3 ; RUN: llc -mtriple=i386-linux-android < %s -o - | FileCheck --check-prefix=ANDROID-I386 %s 4 ; RUN: llc -mtriple=x86_64-linux-android < %s -o - | FileCheck --check-prefix=ANDROID-X64 %s 5 ; RUN: llc -mtriple=x86_64-fuchsia < %s -o - | FileCheck --check-prefix=FUCHSIA-X64 %s 6 7 ; RUN: llc -mtriple=i386-linux -safestack-use-pointer-address < %s -o - | FileCheck --check-prefix=LINUX-I386-PA %s 8 9 define void @_Z1fv() safestack { 10 entry: 11 %x = alloca i32, align 4 12 %0 = bitcast i32* %x to i8* 13 call void @_Z7CapturePi(i32* nonnull %x) 14 ret void 15 } 16 17 declare void @_Z7CapturePi(i32*) 18 19 ; LINUX-X64: movq __safestack_unsafe_stack_ptr@GOTTPOFF(%rip), %[[A:.*]] 20 ; LINUX-X64: movq %fs:(%[[A]]), %[[B:.*]] 21 ; LINUX-X64: leaq -16(%[[B]]), %[[C:.*]] 22 ; LINUX-X64: movq %[[C]], %fs:(%[[A]]) 23 24 ; LINUX-I386: movl __safestack_unsafe_stack_ptr@INDNTPOFF, %[[A:.*]] 25 ; LINUX-I386: movl %gs:(%[[A]]), %[[B:.*]] 26 ; LINUX-I386: leal -16(%[[B]]), %[[C:.*]] 27 ; LINUX-I386: movl %[[C]], %gs:(%[[A]]) 28 29 ; ANDROID-I386: movl %gs:36, %[[A:.*]] 30 ; ANDROID-I386: leal -16(%[[A]]), %[[B:.*]] 31 ; ANDROID-I386: movl %[[B]], %gs:36 32 33 ; ANDROID-X64: movq %fs:72, %[[A:.*]] 34 ; ANDROID-X64: leaq -16(%[[A]]), %[[B:.*]] 35 ; ANDROID-X64: movq %[[B]], %fs:72 36 37 ; FUCHSIA-X64: movq %fs:24, %[[A:.*]] 38 ; FUCHSIA-X64: leaq -16(%[[A]]), %[[B:.*]] 39 ; FUCHSIA-X64: movq %[[B]], %fs:24 40 41 ; LINUX-I386-PA: calll __safestack_pointer_address 42 ; LINUX-I386-PA: movl %eax, %[[A:.*]] 43 ; LINUX-I386-PA: movl (%eax), %[[B:.*]] 44 ; LINUX-I386-PA: leal -16(%[[B]]), %[[C:.*]] 45 ; LINUX-I386-PA: movl %[[C]], (%[[A]]) 46
