derek.holloway
7502bf64a4
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49 lines
1.7 KiB
LLVM
49 lines
1.7 KiB
LLVM
; REQUIRES: asserts
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; RUN: llc < %s -mtriple=powerpc64le-unknown-linux-gnu -verify-machineinstrs\
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; RUN: -mcpu=pwr9 --ppc-enable-pipeliner --debug-only=pipeliner 2>&1 | FileCheck %s
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; Test that the pipeliner doesn't overestimate the recurrence MII when evaluating circuits.
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; CHECK: MII = 16 MAX_II = 26 (rec=16, res=5)
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define dso_local void @comp_method(ptr noalias nocapture noundef readonly %0, ptr nocapture noundef writeonly %1, ptr nocapture noundef writeonly %2, i32 noundef %3, i32 noundef %4, i32 noundef %5, i32 noundef %6, i64 %v1) local_unnamed_addr {
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%8 = icmp sgt i32 %3, 64
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tail call void @llvm.assume(i1 %8)
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%9 = and i32 %3, 1
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%10 = icmp eq i32 %9, 0
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tail call void @llvm.assume(i1 %10)
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%11 = sext i32 %5 to i64
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%12 = sext i32 %6 to i64
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%13 = zext nneg i32 %3 to i64
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%14 = getelementptr i8, ptr %2, i64 %12
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br label %16
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15:
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ret void
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16:
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%17 = phi i64 [ 0, %7 ], [ %24, %16 ]
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%18 = getelementptr inbounds i8, ptr %0, i64 %17
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%19 = load i8, ptr %18, align 1
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%20 = sext i8 %19 to i64
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%21 = getelementptr inbounds i8, ptr %1, i64 %20
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store i8 2, ptr %21, align 1
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%22 = mul nsw i64 %17, %11
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%a1 = ashr i64 %22, 2
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%a2 = add i64 %a1, %v1
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%a3 = add i64 %20, %a2
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%a4 = mul nsw i64 %a3, 5
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%23 = getelementptr i8, ptr %14, i64 %a4
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%a5 = load i8, ptr %23, align 1
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%a4_truncated = trunc i64 %a4 to i8
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%min = call i8 @llvm.smin.i8(i8 %a5, i8 %a4_truncated)
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%res = mul i8 %min, %a5
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store i8 %res, ptr %23, align 1
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%24 = add nuw nsw i64 %17, 1
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%25 = icmp eq i64 %24, %13
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br i1 %25, label %15, label %16
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}
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declare void @llvm.assume(i1 noundef) #1
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declare i8 @llvm.smin.i8(i8, i8)
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attributes #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(inaccessiblemem: write) }
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