eb7d16ea25
mflr is kind of expensive on Power version smaller than 10, so we should schedule the store for the mflr's def away from mflr. In epilogue, the expensive mtlr has no user for its def, so it doesn't matter that the load and the mtlr are back-to-back. Reviewed By: RolandF Differential Revision: https://reviews.llvm.org/D137423
138 lines
5.8 KiB
LLVM
138 lines
5.8 KiB
LLVM
; RUN: llc -mtriple=powerpc64le-unknown-linux-gnu --verify-machineinstrs \
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; RUN: -stop-after=prologepilog < %s | FileCheck \
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; RUN: --check-prefixes=CHECK,CHECK64,ELFV2 %s
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; RUN: llc -mtriple=powerpc64-unknown-aix-xcoff -mcpu=pwr4 \
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; RUN: --verify-machineinstrs --mattr=-altivec -stop-after=prologepilog < %s | \
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; RUN: FileCheck --check-prefixes=CHECK,CHECK64,V1ANDAIX %s
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; RUN: llc -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 --verify-machineinstrs \
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; RUN: -stop-after=prologepilog < %s | FileCheck \
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; RUN: --check-prefixes=CHECK,CHECK64,V1ANDAIX %s
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; RUN: llc -mtriple=powerpc-unknown-aix-xcoff -mcpu=pwr4 \
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; RUN: --verify-machineinstrs --mattr=-altivec -stop-after=prologepilog < %s | \
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; RUN: FileCheck --check-prefixes=CHECK,CHECK32 %s
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define dso_local signext i32 @test(i32 signext %n) {
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entry:
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%conv = sext i32 %n to i64
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%0 = alloca double, i64 %conv, align 16
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tail call void asm sideeffect "", "~{cr2}"()
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%call = call signext i32 @do_something(ptr nonnull %0)
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ret i32 %call
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}
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declare signext i32 @do_something(ptr)
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; CHECK: name: test
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; CHECK: alignment: 16
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; CHECK: liveins:
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; CHECK64: - { reg: '$x3', virtual-reg: '' }
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; CHECK32: - { reg: '$r3', virtual-reg: '' }
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; ELFV2: stackSize: 48
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; V1ANDAIX: stackSize: 128
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; CHECK32: stackSize: 80
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; ELFV2: maxCallFrameSize: 32
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; V1ANDAIX: maxCallFrameSize: 112
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; CHECK32: maxCallFrameSize: 64
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; CHECK64: fixedStack:
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; CHECK64-NEXT: - { id: 0, type: default, offset: 8, size: 4, alignment: 8, stack-id: default,
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; CHECK64-NEXT: isImmutable: true, isAliased: false, callee-saved-register: '$cr2',
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; CHECK64-NEXT: callee-saved-restored: true, debug-info-variable: '', debug-info-expression: '',
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; CHECK64-NEXT: debug-info-location: '' }
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; CHECK64-NEXT: - { id: 1, type: default, offset: -8, size: 8, alignment: 8, stack-id: default,
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; CHECK64-NEXT: isImmutable: true, isAliased: false, callee-saved-register: '', callee-saved-restored: true,
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; CHECK64-NEXT: debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
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; CHECK64-NEXT: stack:
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; CHECK64-NEXT: - { id: 0, name: '', type: variable-sized, offset: -8, alignment: 1,
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; CHECK64-NEXT: stack-id: default, callee-saved-register: '', callee-saved-restored: true,
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; CHECK64-NEXT: local-offset: 0, debug-info-variable: '', debug-info-expression: '',
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; CHECK64-NEXT: debug-info-location: '' }
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; CHECK64-NEXT: - { id: 1, name: '', type: default, offset: -16, size: 8, alignment: 8,
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; CHECK64-NEXT: stack-id: default, callee-saved-register: '', callee-saved-restored: true,
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; CHECK64-NEXT: debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
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; CHECK32: fixedStack:
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; CHECK32-NEXT: - { id: 0, type: default, offset: 4, size: 4, alignment: 4, stack-id: default,
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; CHECK32-NEXT: isImmutable: true, isAliased: false, callee-saved-register: '$cr2',
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; CHECK32-NEXT: callee-saved-restored: true, debug-info-variable: '', debug-info-expression: '',
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; CHECK32-NEXT: debug-info-location: '' }
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; CHECK32-NEXT: - { id: 1, type: default, offset: -4, size: 4, alignment: 4, stack-id: default,
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; CHECK32-NEXT: isImmutable: true, isAliased: false, callee-saved-register: '', callee-saved-restored: true,
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; CHECK32-NEXT: debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
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; CHECK32-NEXT: stack:
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; CHECK32-NEXT: - { id: 0, name: '', type: variable-sized, offset: -4, alignment: 1,
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; CHECK32-NEXT: stack-id: default, callee-saved-register: '', callee-saved-restored: true,
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; CHECK32-NEXT: local-offset: 0, debug-info-variable: '', debug-info-expression: '',
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; CHECK32-NEXT: debug-info-location: '' }
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; CHECK32-NEXT: - { id: 1, name: '', type: default, offset: -8, size: 4, alignment: 4,
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; CHECK32-NEXT: stack-id: default, callee-saved-register: '', callee-saved-restored: true,
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; CHECK32-NEXT: debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
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; CHECK64: bb.0.entry:
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; CHECK64-NEXT: liveins: $x3, $cr2
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; Prologue:
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; CHECK64: $x0 = MFLR8 implicit $lr8
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; ELFV2-NEXT: $x12 = MFOCRF8 killed $cr2
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; V1ANDAIX-NEXT: $x12 = MFCR8 implicit killed $cr2
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; CHECK64-DAG: STD $x31, -8, $x1
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; CHECK64-DAG: STW8 killed $x12, 8, $x1
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; ELFV2-NEXT: $x1 = STDU $x1, -48, $x1
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; ELFV2-NEXT: STD killed $x0, 64, $x1
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; V1ANDAIX-NEXT: x1 = STDU $x1, -128, $x1
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; V1ANDAIX-NEXT: STD killed $x0, 144, $x1
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; CHECK64: $x31 = OR8 $x1, $x1
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; ELFV2: $[[ORIGSP:x[0-9]+]] = ADDI8 $x31, 48
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; V1ANDAIX: $[[ORIGSP:x[0-9]+]] = ADDI8 $x31, 128
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; CHECK64: $x1 = STDUX killed $[[ORIGSP]], $x1, killed $x{{[0-9]}}
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; CHECK64: INLINEASM {{.*}} early-clobber $cr2
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; CHECK64: BL8_NOP
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; Epilogue:
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; CHECK64: $x1 = LD 0, $x1
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; CHECK64-DAG: $x0 = LD 16, $x1
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; CHECK64-DAG: $x12 = LWZ8 8, $x1
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; CHECK64-DAG: $x31 = LD -8, $x1
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; CHECK64: $cr2 = MTOCRF8 killed $x12
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; CHECK64-NEXT: MTLR8 $x0, implicit-def $lr8
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; CHECK64-NEXT: BLR8 implicit $lr8, implicit $rm, implicit $x3
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; CHECK32: bb.0.entry:
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; CHECK32-NEXT: liveins: $r3, $cr2
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; Prologue:
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; CHECK32: $r0 = MFLR implicit $lr
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; CHECK32-NEXT: $r12 = MFCR implicit killed $cr2
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; CHECK32-DAG: STW $r31, -4, $r1
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; CHECK32-DAG: STW killed $r12, 4, $r1
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; CHECK32: $r1 = STWU $r1, -80, $r1
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; CHECK32-NEXT: STW killed $r0, 88, $r1
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; CHECK32: $r31 = OR $r1, $r1
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; CHECK32: $[[ORIGSP:r[0-9]+]] = ADDI $r31, 80
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; CHECK32: $r1 = STWUX killed $[[ORIGSP]], $r1, killed $r{{[0-9]}}
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; CHECK32: INLINEASM {{.*}} early-clobber $cr2
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; CHECK32: BL_NOP
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; Epilogue:
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; CHECK32: $r1 = LWZ 0, $r1
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; CHECK32-DAG: $r0 = LWZ 8, $r1
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; CHECK32-DAG: $r12 = LWZ 4, $r1
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; CHECK32-DAG: $r31 = LWZ -4, $r1
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; CHECK32: $cr2 = MTOCRF killed $r12
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; CHECK32-NEXT: MTLR $r0, implicit-def $lr
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; CHECK32-NEXT: BLR implicit $lr, implicit $rm, implicit $r3
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