5e28d30f1f
Followup to D101178 - peephole optimization that converts a load address instruction and a consuming load/store into just the load/store when its safe to do so. eg: converts the 2 instruction code sequence la 4, i[TD](2) stw 3, 0(4) to stw 3, i[TD](2) Differential Revision: https://reviews.llvm.org/D101470
203 lines
6.8 KiB
LLVM
203 lines
6.8 KiB
LLVM
; RUN: llc -mtriple powerpc-ibm-aix-xcoff -O0 < %s | FileCheck %s --check-prefixes=CHECK,CHECK32,NOOPT
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; RUN: llc -mtriple powerpc64-ibm-aix-xcoff -O0 < %s | FileCheck %s --check-prefixes=CHECK,CHECK64,NOOPT
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; RUN: llc -mtriple powerpc-ibm-aix-xcoff < %s | FileCheck %s --check-prefixes=CHECK,CHECK32,OPT
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; RUN: llc -mtriple powerpc64-ibm-aix-xcoff < %s | FileCheck %s --check-prefixes=CHECK,CHECK64,OPT
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; RUN: llc -filetype=obj -mtriple powerpc-ibm-aix-xcoff -verify-machineinstrs < %s -o %t32.o
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; RUN: llvm-readobj %t32.o --syms --relocs | FileCheck %s --check-prefix=OBJ32
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; RUN: llvm-objdump %t32.o -dr | FileCheck %s --check-prefix=DIS32
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; RUN: llc -filetype=obj -mtriple powerpc64-ibm-aix-xcoff -verify-machineinstrs < %s -o %t64.o
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; RUN: llvm-readobj %t64.o --syms --relocs | FileCheck %s --check-prefix=OBJ64
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; RUN: llvm-objdump %t64.o -dr | FileCheck %s --check-prefix=DIS64
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@i1 = external constant i32 #0
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@i2 = constant ptr @i1 #0
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define i32 @read() {
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%1 = load i32, ptr @i1, align 4
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ret i32 %1
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}
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define ptr @retptr() {
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ret ptr @i2
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}
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attributes #0 = { "toc-data" }
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; CHECK-LABEL: .read:
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; NOOPT: la 3, i1[TD](2)
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; NOOPT: lwz 3, 0(3)
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; OPT: lwz 3, i1[TD](2)
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; CHECK-LABEL: .retptr:
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; CHECK: la 3, i2[TD](2)
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; CHECK-NEXT: blr
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; CHECK-DAG: .toc
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; CHECK: .extern i1[TD]
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; CHECK32: .csect i2[TD],2
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; CHECK64: .csect i2[TD],3
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; OBJ32: Relocations [
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; OBJ32-NEXT: Section (index: 1) .text {
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; OBJ32-NEXT: 0x2 R_TOC i1(1) 0xF
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; OBJ32-NEXT: 0x22 R_TOC i2(15) 0xF
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; OBJ32-NEXT: }
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; OBJ32-NEXT: Section (index: 2) .data {
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; OBJ32-NEXT: 0x40 R_POS .read(5) 0x1F
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; OBJ32-NEXT: 0x44 R_POS TOC(13) 0x1F
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; OBJ32-NEXT: 0x4C R_POS .retptr(7) 0x1F
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; OBJ32-NEXT: 0x50 R_POS TOC(13) 0x1F
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; OBJ32-NEXT: 0x58 R_POS i1(1) 0x1F
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; OBJ32-NEXT: }
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; OBJ32-NEXT: ]
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; OBJ32: Symbol {
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; OBJ32: Index: 1
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; OBJ32-NEXT: Name: i1
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; OBJ32-NEXT: Value (RelocatableAddress): 0x0
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; OBJ32-NEXT: Section: N_UNDEF
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; OBJ32-NEXT: Type: 0x0
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; OBJ32-NEXT: StorageClass: C_EXT (0x2)
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; OBJ32-NEXT: NumberOfAuxEntries: 1
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; OBJ32-NEXT: CSECT Auxiliary Entry {
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; OBJ32-NEXT: Index: 2
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; OBJ32-NEXT: SectionLen: 0
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; OBJ32-NEXT: ParameterHashIndex: 0x0
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; OBJ32-NEXT: TypeChkSectNum: 0x0
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; OBJ32-NEXT: SymbolAlignmentLog2: 0
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; OBJ32-NEXT: SymbolType: XTY_ER (0x0)
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; OBJ32-NEXT: StorageMappingClass: XMC_TD (0x10)
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; OBJ32-NEXT: StabInfoIndex: 0x0
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; OBJ32-NEXT: StabSectNum: 0x0
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; OBJ32-NEXT: }
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; OBJ32-NEXT: }
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; OBJ32: Symbol {
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; OBJ32: Index: 13
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; OBJ32-NEXT: Name: TOC
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; OBJ32-NEXT: Value (RelocatableAddress): 0x58
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; OBJ32-NEXT: Section: .data
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; OBJ32-NEXT: Type: 0x0
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; OBJ32-NEXT: StorageClass: C_HIDEXT (0x6B)
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; OBJ32-NEXT: NumberOfAuxEntries: 1
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; OBJ32-NEXT: CSECT Auxiliary Entry {
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; OBJ32-NEXT: Index: 14
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; OBJ32-NEXT: SectionLen: 0
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; OBJ32-NEXT: ParameterHashIndex: 0x0
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; OBJ32-NEXT: TypeChkSectNum: 0x0
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; OBJ32-NEXT: SymbolAlignmentLog2: 2
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; OBJ32-NEXT: SymbolType: XTY_SD (0x1)
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; OBJ32-NEXT: StorageMappingClass: XMC_TC0 (0xF)
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; OBJ32-NEXT: StabInfoIndex: 0x0
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; OBJ32-NEXT: StabSectNum: 0x0
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; OBJ32-NEXT: }
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; OBJ32-NEXT: }
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; OBJ32: Symbol {
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; OBJ32: Index: 15
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; OBJ32-NEXT: Name: i2
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; OBJ32-NEXT: Value (RelocatableAddress): 0x58
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; OBJ32-NEXT: Section: .data
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; OBJ32-NEXT: Type: 0x0
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; OBJ32-NEXT: StorageClass: C_EXT (0x2)
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; OBJ32-NEXT: NumberOfAuxEntries: 1
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; OBJ32-NEXT: CSECT Auxiliary Entry {
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; OBJ32-NEXT: Index: 16
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; OBJ32-NEXT: SectionLen: 4
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; OBJ32-NEXT: ParameterHashIndex: 0x0
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; OBJ32-NEXT: TypeChkSectNum: 0x0
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; OBJ32-NEXT: SymbolAlignmentLog2: 2
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; OBJ32-NEXT: SymbolType: XTY_SD (0x1)
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; OBJ32-NEXT: StorageMappingClass: XMC_TD (0x10)
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; OBJ32-NEXT: StabInfoIndex: 0x0
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; OBJ32-NEXT: StabSectNum: 0x0
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; OBJ32-NEXT: }
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; OBJ32-NEXT: }
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; OBJ64: Relocations [
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; OBJ64-NEXT: Section (index: 1) .text {
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; OBJ64-NEXT: 0x2 R_TOC i1(1) 0xF
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; OBJ64-NEXT: 0x22 R_TOC i2(15) 0xF
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; OBJ64-NEXT: }
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; OBJ64-NEXT: Section (index: 2) .data {
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; OBJ64-NEXT: 0x40 R_POS .read(5) 0x3F
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; OBJ64-NEXT: 0x48 R_POS TOC(13) 0x3F
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; OBJ64-NEXT: 0x58 R_POS .retptr(7) 0x3F
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; OBJ64-NEXT: 0x60 R_POS TOC(13) 0x3F
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; OBJ64-NEXT: 0x70 R_POS i1(1) 0x3F
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; OBJ64-NEXT: }
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; OBJ64-NEXT: ]
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; OBJ64: Symbol {
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; OBJ64: Index: 1
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; OBJ64-NEXT: Name: i1
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; OBJ64-NEXT: Value (RelocatableAddress): 0x0
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; OBJ64-NEXT: Section: N_UNDEF
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; OBJ64-NEXT: Type: 0x0
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; OBJ64-NEXT: StorageClass: C_EXT (0x2)
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; OBJ64-NEXT: NumberOfAuxEntries: 1
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; OBJ64-NEXT: CSECT Auxiliary Entry {
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; OBJ64-NEXT: Index: 2
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; OBJ64-NEXT: SectionLen: 0
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; OBJ64-NEXT: ParameterHashIndex: 0x0
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; OBJ64-NEXT: TypeChkSectNum: 0x0
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; OBJ64-NEXT: SymbolAlignmentLog2: 0
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; OBJ64-NEXT: SymbolType: XTY_ER (0x0)
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; OBJ64-NEXT: StorageMappingClass: XMC_TD (0x10)
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; OBJ64-NEXT: Auxiliary Type: AUX_CSECT (0xFB)
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; OBJ64-NEXT: }
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; OBJ64-NEXT: }
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; OBJ64: Symbol {
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; OBJ64: Index: 13
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; OBJ64-NEXT: Name: TOC
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; OBJ64-NEXT: Value (RelocatableAddress): 0x70
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; OBJ64-NEXT: Section: .data
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; OBJ64-NEXT: Type: 0x0
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; OBJ64-NEXT: StorageClass: C_HIDEXT (0x6B)
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; OBJ64-NEXT: NumberOfAuxEntries: 1
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; OBJ64-NEXT: CSECT Auxiliary Entry {
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; OBJ64-NEXT: Index: 14
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; OBJ64-NEXT: SectionLen: 0
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; OBJ64-NEXT: ParameterHashIndex: 0x0
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; OBJ64-NEXT: TypeChkSectNum: 0x0
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; OBJ64-NEXT: SymbolAlignmentLog2: 2
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; OBJ64-NEXT: SymbolType: XTY_SD (0x1)
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; OBJ64-NEXT: StorageMappingClass: XMC_TC0 (0xF)
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; OBJ64-NEXT: Auxiliary Type: AUX_CSECT (0xFB)
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; OBJ64-NEXT: }
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; OBJ64-NEXT: }
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; OBJ64: Symbol {
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; OBJ64: Index: 15
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; OBJ64-NEXT: Name: i2
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; OBJ64-NEXT: Value (RelocatableAddress): 0x70
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; OBJ64-NEXT: Section: .data
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; OBJ64-NEXT: Type: 0x0
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; OBJ64-NEXT: StorageClass: C_EXT (0x2)
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; OBJ64-NEXT: NumberOfAuxEntries: 1
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; OBJ64-NEXT: CSECT Auxiliary Entry {
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; OBJ64-NEXT: Index: 16
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; OBJ64-NEXT: SectionLen: 8
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; OBJ64-NEXT: ParameterHashIndex: 0x0
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; OBJ64-NEXT: TypeChkSectNum: 0x0
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; OBJ64-NEXT: SymbolAlignmentLog2: 3
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; OBJ64-NEXT: SymbolType: XTY_SD (0x1)
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; OBJ64-NEXT: StorageMappingClass: XMC_TD (0x10)
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; OBJ64-NEXT: Auxiliary Type: AUX_CSECT (0xFB)
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; OBJ64-NEXT: }
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; OBJ64-NEXT: }
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; DIS32: 00000000 <.read>:
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; DIS32-NEXT: 0: 80 62 00 00 lwz 3, 0(2)
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; DIS32-NEXT: 00000002: R_TOC i1
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; DIS32: 00000020 <.retptr>:
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; DIS32-NEXT: 20: 38 62 00 00 addi 3, 2, 0
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; DIS32-NEXT: 00000022: R_TOC i2
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; DIS64: 0000000000000000 <.read>:
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; DIS64-NEXT: 0: 80 62 00 00 lwz 3, 0(2)
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; DIS64-NEXT: 0000000000000002: R_TOC i1
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; DIS64: 0000000000000020 <.retptr>:
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; DIS64-NEXT: 20: 38 62 00 00 addi 3, 2, 0
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; DIS64-NEXT: 0000000000000022: R_TOC i2
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