1 ; RUN: llc < %s -march=x86 | FileCheck %s --check-prefix=CHECK-32 2 ; RUN: llc < %s -march=x86 -fast-isel -fast-isel-abort | FileCheck %s --check-prefix=CHECK-32 3 ; RUN: llc < %s -march=x86-64 | FileCheck %s --check-prefix=CHECK-64 4 ; RUN: llc < %s -march=x86-64 -fast-isel -fast-isel-abort | FileCheck %s --check-prefix=CHECK-64 5 6 define i8* @test1() nounwind { 7 entry: 8 ; CHECK-32-LABEL: test1 9 ; CHECK-32: push 10 ; CHECK-32-NEXT: movl %esp, %ebp 11 ; CHECK-32-NEXT: movl %ebp, %eax 12 ; CHECK-32-NEXT: pop 13 ; CHECK-32-NEXT: ret 14 ; CHECK-64-LABEL: test1 15 ; CHECK-64: push 16 ; CHECK-64-NEXT: movq %rsp, %rbp 17 ; CHECK-64-NEXT: movq %rbp, %rax 18 ; CHECK-64-NEXT: pop 19 ; CHECK-64-NEXT: ret 20 %0 = tail call i8* @llvm.frameaddress(i32 0) 21 ret i8* %0 22 } 23 24 define i8* @test2() nounwind { 25 entry: 26 ; CHECK-32-LABEL: test2 27 ; CHECK-32: push 28 ; CHECK-32-NEXT: movl %esp, %ebp 29 ; CHECK-32-NEXT: movl (%ebp), %eax 30 ; CHECK-32-NEXT: movl (%eax), %eax 31 ; CHECK-32-NEXT: pop 32 ; CHECK-32-NEXT: ret 33 ; CHECK-64-LABEL: test2 34 ; CHECK-64: push 35 ; CHECK-64-NEXT: movq %rsp, %rbp 36 ; CHECK-64-NEXT: movq (%rbp), %rax 37 ; CHECK-64-NEXT: movq (%rax), %rax 38 ; CHECK-64-NEXT: pop 39 ; CHECK-64-NEXT: ret 40 %0 = tail call i8* @llvm.frameaddress(i32 2) 41 ret i8* %0 42 } 43 44 declare i8* @llvm.frameaddress(i32) nounwind readnone 45
