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
67 lines
2.3 KiB
LLVM
67 lines
2.3 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -mcpu=pwr9 -ppc-asm-full-reg-names -ppc-vsr-nums-as-vr \
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; RUN: -mtriple=powerpc64le-unknown-unknown < %s | FileCheck %s \
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; RUN: -check-prefix=CHECK-P9
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@_ZL3num = external dso_local unnamed_addr global float, align 4
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define dso_local void @main() local_unnamed_addr personality ptr @__gxx_personality_v0 {
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; CHECK-P9-LABEL: main:
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; CHECK-P9: # %bb.0: # %bb
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; CHECK-P9-NEXT: mflr r0
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; CHECK-P9-NEXT: stdu r1, -32(r1)
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; CHECK-P9-NEXT: std r0, 48(r1)
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; CHECK-P9-NEXT: .cfi_def_cfa_offset 32
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; CHECK-P9-NEXT: .cfi_offset lr, 16
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; CHECK-P9-NEXT: bl malloc
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; CHECK-P9-NEXT: nop
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; CHECK-P9-NEXT: addis r4, r2, _ZL3num@toc@ha
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; CHECK-P9-NEXT: addi r3, r3, -25400
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; CHECK-P9-NEXT: lfs f0, _ZL3num@toc@l(r4)
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; CHECK-P9-NEXT: addis r4, r2, .LCPI0_0@toc@ha
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; CHECK-P9-NEXT: lfs f1, .LCPI0_0@toc@l(r4)
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; CHECK-P9-NEXT: li r4, 0
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; CHECK-P9-NEXT: xsmulsp f0, f0, f1
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; CHECK-P9-NEXT: cmpldi r4, 0
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; CHECK-P9-NEXT: beq- cr0, .LBB0_2
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; CHECK-P9-NEXT: .p2align 5
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; CHECK-P9-NEXT: .LBB0_1: # %bb5
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; CHECK-P9-NEXT: #
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; CHECK-P9-NEXT: addi r3, r3, 25400
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; CHECK-P9-NEXT: addi r4, r4, 25400
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; CHECK-P9-NEXT: stfs f0, 15240(r3)
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; CHECK-P9-NEXT: cmpldi r4, 0
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; CHECK-P9-NEXT: bne+ cr0, .LBB0_1
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; CHECK-P9-NEXT: .LBB0_2: # %bb16
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bb:
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%i = tail call noalias dereferenceable_or_null(6451600) ptr @malloc()
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br label %bb2
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bb2: ; preds = %bb5, %bb
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%i3 = phi i64 [ 0, %bb ], [ %i15, %bb5 ]
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%i4 = icmp eq i64 %i3, 0
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br i1 %i4, label %bb16, label %bb5
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bb5: ; preds = %bb2
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%i6 = mul nuw nsw i64 %i3, 1270
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%i7 = add nuw nsw i64 %i6, 0
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%i8 = getelementptr inbounds float, ptr %i, i64 %i7
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store float undef, ptr %i8, align 4
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%i9 = add nuw nsw i64 %i3, 3
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%i10 = load float, ptr @_ZL3num, align 4
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%i11 = fmul float %i10, 0x3E00000000000000
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%i12 = mul nuw nsw i64 %i9, 1270
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%i13 = add nuw nsw i64 %i12, 0
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%i14 = getelementptr inbounds float, ptr %i, i64 %i13
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store float %i11, ptr %i14, align 4
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%i15 = add nuw nsw i64 %i3, 5
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br label %bb2
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bb16: ; preds = %bb2
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unreachable
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}
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declare i32 @__gxx_personality_v0(...)
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declare ptr @malloc() local_unnamed_addr
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