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TheRock/compiler/amd-llvm/llvm/test/CodeGen/LoongArch/patchable-function-entry.ll
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2026-09-02 16:34:47 -07:00

64 lines
2.0 KiB
LLVM

;; Test the function attribute "patchable-function-entry".
;; Adapted from the RISCV test case.
; RUN: llc --mtriple=loongarch32 -mattr=+d < %s | FileCheck %s --check-prefixes=CHECK,LA32
; RUN: llc --mtriple=loongarch64 -mattr=+d < %s | FileCheck %s --check-prefixes=CHECK,LA64
define void @f0() "patchable-function-entry"="0" {
; CHECK-LABEL: f0:
; CHECK-NEXT: .Lfunc_begin0:
; CHECK-NOT: nop
; CHECK: ret
; CHECK-NOT: .section __patchable_function_entries
ret void
}
define void @f1() "patchable-function-entry"="1" {
; CHECK-LABEL: f1:
; CHECK-NEXT: .Lfunc_begin1:
; CHECK: nop
; CHECK-NEXT: ret
; CHECK: .section __patchable_function_entries,"awo",@progbits,f1{{$}}
; LA32: .p2align 2
; LA32-NEXT: .word .Lfunc_begin1
; LA64: .p2align 3
; LA64-NEXT: .dword .Lfunc_begin1
ret void
}
$f5 = comdat any
define void @f5() "patchable-function-entry"="5" comdat {
; CHECK-LABEL: f5:
; CHECK-NEXT: .Lfunc_begin2:
; CHECK-COUNT-5: nop
; CHECK-NEXT: ret
; CHECK: .section __patchable_function_entries,"awoG",@progbits,f5,f5,comdat{{$}}
; LA32: .p2align 2
; LA32-NEXT: .word .Lfunc_begin2
; LA64: .p2align 3
; LA64-NEXT: .dword .Lfunc_begin2
ret void
}
;; -fpatchable-function-entry=3,2
;; "patchable-function-prefix" emits data before the function entry label.
define void @f3_2() "patchable-function-entry"="1" "patchable-function-prefix"="2" {
; CHECK-LABEL: .type f3_2,@function
; CHECK-NEXT: .Ltmp0:
; CHECK-COUNT-2: nop
; CHECK-NEXT: f3_2: # @f3_2
; CHECK: # %bb.0:
; CHECK-NEXT: nop
; LA32-NEXT: addi.w $sp, $sp, -16
; LA64-NEXT: addi.d $sp, $sp, -16
;; .size does not include the prefix.
; CHECK: .Lfunc_end3:
; CHECK-NEXT: .size f3_2, .Lfunc_end3-f3_2
; CHECK: .section __patchable_function_entries,"awo",@progbits,f3_2{{$}}
; LA32: .p2align 2
; LA32-NEXT: .word .Ltmp0
; LA64: .p2align 3
; LA64-NEXT: .dword .Ltmp0
%frame = alloca i8, i32 16
ret void
}