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aix-user-defined-memcpy.ll
121 lines (104 loc) · 4.4 KB
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aix-user-defined-memcpy.ll
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; RUN: llc -verify-machineinstrs -mtriple powerpc-ibm-aix-xcoff -mcpu=pwr4 \
; RUN: -mattr=-altivec -filetype=obj -xcoff-traceback-table=false -o %t.o < %s
; RUN: llvm-readobj --syms %t.o | FileCheck --check-prefix=32-SYM %s
; RUN: llvm-readobj --relocs --expand-relocs %t.o | FileCheck \
; RUN: --check-prefix=32-REL %s
; RUN: llvm-objdump -D %t.o | FileCheck --check-prefix=32-DIS %s
; RUN: llc -verify-machineinstrs -mtriple powerpc-ibm-aix-xcoff \
; RUN: -mcpu=pwr4 -mattr=-altivec < %s | \
; RUN: FileCheck %s
; RUN: not --crash llc -verify-machineinstrs -mtriple powerpc64-ibm-aix-xcoff \
; RUN: -mcpu=pwr4 -mattr=-altivec -filetype=obj < %s 2>&1 | FileCheck \
; RUN: --check-prefix=64-CHECK %s
; Test verifies:
; If there exists a user-defined function whose name is the same as the
; "memcpy" ExternalSymbol's, we pick up the user-defined version, even if this
; may lead to some undefined behavior.
define dso_local signext i32 @memcpy(i8* %destination, i32 signext %num) {
entry:
ret i32 3
}
define void @call_memcpy(i8* %p, i8* %q, i32 %n) {
entry:
call void @llvm.memcpy.p0i8.p0i8.i32(i8* %p, i8* %q, i32 %n, i1 false)
ret void
}
declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture writeonly, i8* nocapture readonly, i32, i1)
; This test check
; 1. The symbol table for .o file to verify .memcpy is a defined external label.
; 2. There is no relocation associated with the call, since callee is defined.
; 3. Branch instruction in raw data is branching back to the right callee location.
; CHECK-NOT: .extern .memcpy
; 32-SYM: Symbol {{[{][[:space:]] *}}Index: [[#Index:]]{{[[:space:]] *}}Name: .memcpy
; 32-SYM-NEXT: Value (RelocatableAddress): 0x0
; 32-SYM-NEXT: Section: .text
; 32-SYM-NEXT: Type: 0x0
; 32-SYM-NEXT: StorageClass: C_EXT (0x2)
; 32-SYM-NEXT: NumberOfAuxEntries: 1
; 32-SYM-NEXT: CSECT Auxiliary Entry {
; 32-SYM-NEXT: Index: 4
; 32-SYM-NEXT: ContainingCsectSymbolIndex: 1
; 32-SYM-NEXT: ParameterHashIndex: 0x0
; 32-SYM-NEXT: TypeChkSectNum: 0x0
; 32-SYM-NEXT: SymbolAlignmentLog2: 0
; 32-SYM-NEXT: SymbolType: XTY_LD (0x2)
; 32-SYM-NEXT: StorageMappingClass: XMC_PR (0x0)
; 32-SYM-NEXT: StabInfoIndex: 0x0
; 32-SYM-NEXT: StabSectNum: 0x0
; 32-SYM-NEXT: }
; 32-SYM-NEXT: }
; 32-SYM-NOT: .memcpy
; 32-REL: Relocations [
; 32-REL-NEXT: Section (index: 2) .data {
; 32-REL-NEXT: Relocation {
; 32-REL-NEXT: Virtual Address: 0x34
; 32-REL-NEXT: Symbol: .memcpy (3)
; 32-REL-NEXT: IsSigned: No
; 32-REL-NEXT: FixupBitValue: 0
; 32-REL-NEXT: Length: 32
; 32-REL-NEXT: Type: R_POS (0x0)
; 32-REL-NEXT: }
; 32-REL-NEXT: Relocation {
; 32-REL-NEXT: Virtual Address: 0x38
; 32-REL-NEXT: Symbol: TOC (11)
; 32-REL-NEXT: IsSigned: No
; 32-REL-NEXT: FixupBitValue: 0
; 32-REL-NEXT: Length: 32
; 32-REL-NEXT: Type: R_POS (0x0)
; 32-REL-NEXT: }
; 32-REL-NEXT: Relocation {
; 32-REL-NEXT: Virtual Address: 0x40
; 32-REL-NEXT: Symbol: .call_memcpy (5)
; 32-REL-NEXT: IsSigned: No
; 32-REL-NEXT: FixupBitValue: 0
; 32-REL-NEXT: Length: 32
; 32-REL-NEXT: Type: R_POS (0x0)
; 32-REL-NEXT: }
; 32-REL-NEXT: Relocation {
; 32-REL-NEXT: Virtual Address: 0x44
; 32-REL-NEXT: Symbol: TOC (11)
; 32-REL-NEXT: IsSigned: No
; 32-REL-NEXT: FixupBitValue: 0
; 32-REL-NEXT: Length: 32
; 32-REL-NEXT: Type: R_POS (0x0)
; 32-REL-NEXT: }
; 32-REL-NEXT: }
; 32-REL-NEXT: ]
; 32-REL-NOT: Type: R_RBR (0x1A)
; 32-DIS: Disassembly of section .text:
; 32-DIS: 00000000 <.text>:
; 32-DIS-NEXT: 0: 38 60 00 03 li 3, 3
; 32-DIS-NEXT: 4: 4e 80 00 20 blr
; 32-DIS-NEXT: 8: 60 00 00 00 nop
; 32-DIS-NEXT: c: 60 00 00 00 nop
; 32-DIS: 00000010 <.call_memcpy>:
; 32-DIS-NEXT: 10: 7c 08 02 a6 mflr 0
; 32-DIS-NEXT: 14: 90 01 00 08 stw 0, 8(1)
; 32-DIS-NEXT: 18: 94 21 ff c0 stwu 1, -64(1)
; 32-DIS-NEXT: 1c: 4b ff ff e5 bl 0x0
; 32-DIS-NEXT: 20: 60 00 00 00 nop
; 32-DIS-NEXT: 24: 38 21 00 40 addi 1, 1, 64
; 32-DIS-NEXT: 28: 80 01 00 08 lwz 0, 8(1)
; 32-DIS-NEXT: 2c: 7c 08 03 a6 mtlr 0
; 32-DIS-NEXT: 30: 4e 80 00 20 blr
; 64-CHECK: LLVM ERROR: 64-bit XCOFF object files are not supported yet.