31 lines · plain
1; RUN: llc < %s -mtriple=x86_64-apple-darwin | FileCheck %s2; RUN: llc < %s -mtriple=x86_64-linux-gnueabi | FileCheck %s3; RUN: opt < %s -O3 -S -mtriple=x86_64-linux-gnueabi | FileCheck %s --check-prefix=OPT4 5define i64 @get_frame() #0 {6entry:7; CHECK-LABEL: get_frame:8; CHECK: movq %rbp, %rax9 %sp = call i64 @llvm.read_register.i64(metadata !0)10; OPT: @llvm.read_register.i6411 ret i64 %sp12}13 14define void @set_frame(i64 %val) #0 {15entry:16; CHECK-LABEL: set_frame:17; CHECK: movq %rdi, %rbp18 call void @llvm.write_register.i64(metadata !0, i64 %val)19; OPT: @llvm.write_register.i6420 ret void21}22 23declare i64 @llvm.read_register.i64(metadata) nounwind24declare void @llvm.write_register.i64(metadata, i64) nounwind25 26; register unsigned long current_stack_pointer asm("rbp");27; CHECK-NOT: .asciz "rbp"28!0 = !{!"rbp\00"}29 30attributes #0 = { nounwind "frame-pointer"="all" }31