llvm-project/llvm/test/CodeGen/Xtensa/naked-fn-with-frame-pointer.ll
Alex Rønne Petersen ad4a582fd9
[llvm] Consistently respect naked fn attribute in TargetFrameLowering::hasFP() (#106014)
Some targets (e.g. PPC and Hexagon) already did this. I think it's best
to do this consistently so that frontend authors don't run into
inconsistent results when they emit `naked` functions. For example, in
Zig, we had to change our emit code to also set `frame-pointer=none` to
get reliable results across targets.

Note: I don't have commit access.
2024-10-18 09:35:42 +04:00

32 lines
1001 B
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
; RUN: llc < %s -march xtensa | FileCheck %s -check-prefixes=CHECK
declare dso_local void @main()
define dso_local void @naked() naked "frame-pointer"="all" {
; CHECK-LABEL: naked:
; CHECK: # %bb.0:
; CHECK-NEXT: l32r a8, {{\.?LCPI[0-9]+_[0-9]+}}
; CHECK-NEXT: callx0 a8
call void @main()
unreachable
}
define dso_local void @normal() "frame-pointer"="all" {
; CHECK-LABEL: normal:
; CHECK: # %bb.0:
; CHECK-NEXT: addi a8, a1, -16
; CHECK-NEXT: or a1, a8, a8
; CHECK-NEXT: .cfi_def_cfa_offset 16
; CHECK-NEXT: s32i a0, a1, 4 # 4-byte Folded Spill
; CHECK-NEXT: s32i a15, a1, 0 # 4-byte Folded Spill
; CHECK-NEXT: .cfi_offset a0, -4
; CHECK-NEXT: .cfi_offset a15, -8
; CHECK-NEXT: or a15, a1, a1
; CHECK-NEXT: .cfi_def_cfa_register a15
; CHECK-NEXT: l32r a8, {{\.?LCPI[0-9]+_[0-9]+}}
; CHECK-NEXT: callx0 a8
call void @main()
unreachable
}