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clang-p2996/llvm/test/CodeGen/SystemZ/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

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870 B
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
; RUN: llc < %s -mtriple s390x | 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: brasl %r14, main@PLT
call void @main()
unreachable
}
define dso_local void @normal() "frame-pointer"="all" {
; CHECK-LABEL: normal:
; CHECK: # %bb.0:
; CHECK-NEXT: stmg %r11, %r15, 88(%r15)
; CHECK-NEXT: .cfi_offset %r11, -72
; CHECK-NEXT: .cfi_offset %r14, -48
; CHECK-NEXT: .cfi_offset %r15, -40
; CHECK-NEXT: aghi %r15, -160
; CHECK-NEXT: .cfi_def_cfa_offset 320
; CHECK-NEXT: lgr %r11, %r15
; CHECK-NEXT: .cfi_def_cfa_register %r11
; CHECK-NEXT: brasl %r14, main@PLT
call void @main()
unreachable
}