1; RUN: llc < %s -mtriple=x86_64-apple-darwin | FileCheck %s 2; RUN: llc < %s -mtriple=x86_64-linux-gnueabi | FileCheck %s 3; RUN: opt < %s -O3 -S -mtriple=x86_64-linux-gnueabi | FileCheck %s --check-prefix=OPT 4 5define i64 @get_frame() #0 { 6entry: 7; CHECK-LABEL: get_frame: 8; CHECK: movq %rbp, %rax 9 %sp = call i64 @llvm.read_register.i64(metadata !0) 10; OPT: @llvm.read_register.i64 11 ret i64 %sp 12} 13 14define void @set_frame(i64 %val) #0 { 15entry: 16; CHECK-LABEL: set_frame: 17; CHECK: movq %rdi, %rbp 18 call void @llvm.write_register.i64(metadata !0, i64 %val) 19; OPT: @llvm.write_register.i64 20 ret void 21} 22 23declare i64 @llvm.read_register.i64(metadata) nounwind 24declare void @llvm.write_register.i64(metadata, i64) nounwind 25 26; register unsigned long current_stack_pointer asm("rbp"); 27; CHECK-NOT: .asciz "rbp" 28!0 = !{!"rbp\00"} 29 30attributes #0 = { nounwind "no-frame-pointer-elim"="true" } 31