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87ee2e6422
PowerPC has its custom scheduler heuristic. It calls parent classes' tryCandidate in override version, but the function returns void, so this way doesn't actually help. This patch duplicates code from base scheduler into PPC machine scheduler class, which does what we wanted. Reviewed By: steven.zhang Differential Revision: https://reviews.llvm.org/D94464
65 lines
1.9 KiB
LLVM
65 lines
1.9 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=powerpc64le-unknown-linux-gnu -verify-machineinstrs\
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; RUN: -mcpu=pwr9 --ppc-enable-pipeliner 2>&1 | FileCheck %s
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define void @main() nounwind #0 {
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; CHECK-LABEL: main:
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; CHECK: # %bb.0:
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; CHECK-NEXT: mflr 0
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; CHECK-NEXT: std 30, -16(1) # 8-byte Folded Spill
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; CHECK-NEXT: std 0, 16(1)
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; CHECK-NEXT: stdu 1, -48(1)
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; CHECK-NEXT: bl strtol
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; CHECK-NEXT: nop
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; CHECK-NEXT: mr 30, 3
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; CHECK-NEXT: bl calloc
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; CHECK-NEXT: nop
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; CHECK-NEXT: clrldi 4, 30, 32
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; CHECK-NEXT: li 5, 0
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; CHECK-NEXT: addi 3, 3, -4
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; CHECK-NEXT: mtctr 4
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; CHECK-NEXT: mullw 4, 5, 5
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; CHECK-NEXT: li 6, 1
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; CHECK-NEXT: bdz .LBB0_3
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; CHECK-NEXT: # %bb.1:
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; CHECK-NEXT: stwu 4, 4(3)
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; CHECK-NEXT: mullw 4, 6, 6
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; CHECK-NEXT: addi 5, 6, 1
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; CHECK-NEXT: bdz .LBB0_3
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; CHECK-NEXT: .p2align 4
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; CHECK-NEXT: .LBB0_2:
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; CHECK-NEXT: stwu 4, 4(3)
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; CHECK-NEXT: mullw 4, 5, 5
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; CHECK-NEXT: addi 5, 5, 1
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; CHECK-NEXT: bdnz .LBB0_2
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; CHECK-NEXT: .LBB0_3:
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; CHECK-NEXT: stwu 4, 4(3)
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; CHECK-NEXT: addi 1, 1, 48
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; CHECK-NEXT: ld 0, 16(1)
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; CHECK-NEXT: ld 30, -16(1) # 8-byte Folded Reload
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; CHECK-NEXT: mtlr 0
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; CHECK-NEXT: blr
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%1 = tail call i64 @strtol()
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%2 = trunc i64 %1 to i32
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%3 = tail call noalias i8* @calloc()
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%4 = bitcast i8* %3 to i32*
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%5 = zext i32 %2 to i64
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br label %6
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6: ; preds = %6, %0
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%7 = phi i64 [ %11, %6 ], [ 0, %0 ]
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%8 = trunc i64 %7 to i32
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%9 = mul nsw i32 %8, %8
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%10 = getelementptr inbounds i32, i32* %4, i64 %7
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store i32 %9, i32* %10, align 4
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%11 = add nuw nsw i64 %7, 1
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%12 = icmp eq i64 %11, %5
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br i1 %12, label %13, label %6
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13: ; preds = %6
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ret void
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}
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declare i8* @calloc() local_unnamed_addr
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declare i64 @strtol() local_unnamed_addr
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