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169 lines
4.7 KiB
YAML
169 lines
4.7 KiB
YAML
# RUN: llc -mtriple=powerpc64le--linux-gnu -stop-after ppc-pre-emit-peephole %s -o - -verify-machineinstrs | FileCheck %s
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# ADDI instr: ToBeChangedReg = ADDI FrameBaseReg, OffsetAddi
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# ADD instr: ToBeDeletedReg = ADD ToBeChangedReg(killed), ScaleReg
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# Imm instr: Reg = op OffsetImm, ToBeDeletedReg(killed)
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#
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# can be folded to:
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#
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# new ADDI instr: ToBeChangedReg = ADDI FrameBaseReg, (OffsetAddi + OffsetImm)
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# Index instr: Reg = opx ScaleReg, ToBeChangedReg(killed)
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---
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name: testIndexForm1
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#CHECK: name: testIndexForm1
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# ToBeDeletedReg equals to ScaleReg
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tracksRegLiveness: true
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body: |
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bb.0.entry:
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liveins: $x3, $x1, $x4, $x6
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$x3 = ADDI8 $x1, -80
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; CHECK: $x3 = ADDI8 $x1, -76
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$x4 = ADD8 killed $x3, killed $x4
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; CHECK-NOT: ADD8
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$x6 = LD 4, killed $x4
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; CHECK: $x6 = LDX killed $x4, killed $x3
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BLR8 implicit $lr8, implicit $rm
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...
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---
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name: testIndexForm2
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#CHECK: name: testIndexForm2
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# ToBeDeletedReg equals to ToBeChangedReg
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tracksRegLiveness: true
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body: |
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bb.0.entry:
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liveins: $x3, $x1, $x4, $x6
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$x3 = ADDI8 $x1, -80
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; CHECK: $x3 = ADDI8 $x1, -76
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$x3 = ADD8 killed $x3, killed $x4
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; CHECK-NOT: ADD8
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$x6 = LD 4, killed $x3
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; CHECK: $x6 = LDX killed $x4, killed $x3
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BLR8 implicit $lr8, implicit $rm
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...
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---
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name: testIndexForm3
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#CHECK: name: testIndexForm3
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# There is other use for ToBeDeletedReg between ADD instr and Imm instr
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tracksRegLiveness: true
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body: |
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bb.0.entry:
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liveins: $x3, $x1, $x4, $x6
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$x3 = ADDI8 $x1, -80
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; CHECK: $x3 = ADDI8 $x1, -80
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$x3 = ADD8 killed $x3, killed $x4
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; CHECK: $x3 = ADD8 killed $x3, killed $x4
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STD $x3, killed $x6, 100
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; CHECK: STD $x3, killed $x6, 100
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$x6 = LD 4, killed $x3
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; CHECK: $x6 = LD 4, killed $x3
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BLR8 implicit $lr8, implicit $rm
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...
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---
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name: testIndexForm4
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#CHECK: name: testIndexForm4
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# There is other use for ToBeChangedReg between ADDI instr and ADD instr
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tracksRegLiveness: true
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body: |
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bb.0.entry:
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liveins: $x3, $x1, $x4, $x6
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$x3 = ADDI8 $x1, -80
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; CHECK: $x3 = ADDI8 $x1, -80
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STD $x3, killed $x6, 100
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; CHECK: STD $x3, killed $x6, 100
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$x3 = ADD8 killed $x3, killed $x4
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; CHECK: $x3 = ADD8 killed $x3, killed $x4
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$x6 = LD 4, killed $x3
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; CHECK: $x6 = LD 4, killed $x3
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BLR8 implicit $lr8, implicit $rm
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...
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---
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name: testIndexForm5
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#CHECK: name: testIndexForm5
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# ToBeChangedReg has no killed flag
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tracksRegLiveness: true
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body: |
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bb.0.entry:
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liveins: $x3, $x1, $x4, $x6
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$x3 = ADDI8 $x1, -80
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; CHECK: $x3 = ADDI8 $x1, -80
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$x4 = ADD8 $x3, killed $x4
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; CHECK: $x4 = ADD8 $x3, killed $x4
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STD killed $x3, killed $x6, 100
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; CHECK: STD killed $x3, killed $x6, 100
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$x6 = LD 4, killed $x4
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; CHECK: $x6 = LD 4, killed $x4
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BLR8 implicit $lr8, implicit $rm
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...
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---
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name: testIndexForm6
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#CHECK: name: testIndexForm6
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# ToBeDeletedReg has no killed flag
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tracksRegLiveness: true
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body: |
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bb.0.entry:
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liveins: $x3, $x1, $x4, $x6
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$x3 = ADDI8 $x1, -80
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; CHECK: $x3 = ADDI8 $x1, -80
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$x4 = ADD8 killed $x3, killed $x4
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; CHECK: $x4 = ADD8 killed $x3, killed $x4
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$x6 = LD 4, $x4
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; CHECK: $x6 = LD 4, $x4
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STD killed $x4, killed $x6, 100
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BLR8 implicit $lr8, implicit $rm
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...
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---
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name: testIndexForm7
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#CHECK: name: testIndexForm7
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# There is other def for ToBeChangedReg between ADD instr and Imm instr
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tracksRegLiveness: true
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body: |
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bb.0.entry:
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liveins: $x3, $x1, $x4, $x5, $x6
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$x3 = ADDI8 $x1, -80
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; CHECK: $x3 = ADDI8 $x1, -80
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$x4 = ADD8 killed $x3, killed $x5
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; CHECK: $x4 = ADD8 killed $x3, killed $x5
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$x3 = LD 100, $x6
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; CHECK: $x3 = LD 100, $x6
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STD killed $x3, killed $x6, 200
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; CHECK: STD killed $x3, killed $x6, 200
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$x6 = LD 4, killed $x4
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; CHECK: $x6 = LD 4, killed $x4
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BLR8 implicit $lr8, implicit $rm
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...
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---
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name: testIndexForm8
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#CHECK: name: testIndexForm8
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# There is other def for ScaleReg between ADD instr and Imm instr
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tracksRegLiveness: true
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body: |
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bb.0.entry:
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liveins: $x3, $x1, $x4, $x5, $x6
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$x3 = ADDI8 $x1, -80
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; CHECK: $x3 = ADDI8 $x1, -80
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$x4 = ADD8 killed $x3, killed $x5
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; CHECK: $x4 = ADD8 killed $x3, killed $x5
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$x5 = LD 100, $x6
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; CHECK: $x5 = LD 100, $x6
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STD killed $x5, killed $x6, 200
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; CHECK: STD killed $x5, killed $x6, 200
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$x6 = LD 4, killed $x4
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; CHECK: $x6 = LD 4, killed $x4
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BLR8 implicit $lr8, implicit $rm
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...
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---
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name: testR0
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#CHECK: name: testR0
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# Give up the folding if the register is R0/X0
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tracksRegLiveness: true
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body: |
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bb.0.entry:
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liveins: $f1, $x0, $x3
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$x4 = ADDI8 killed $x3, -8
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$x4 = ADD8 killed $x4, $x0
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STFD killed $f1, -8, killed $x4
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; CHECK-NOT: STFDX
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BLR8 implicit $lr8, implicit $rm
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...
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