;
; Verify that register pressure heuristics are working in MachineScheduler.
;
-; When we enable subtree scheduling heuristics on X86, we may need a
-; flag to disable it for this test case.
+; We can further reduce spills in this case with a global register
+; pressure heuristic, like sethi-ullman numbers or biasing toward
+; scheduled subtrees. However, these heuristics are marginally
+; beneficial on x86_64 and exacerbate register pressure in other
+; more complex cases.
;
; CHECK: @wrap_mul4
-; CHECK: 30 regalloc - Number of spills inserted
+; CHECK: 23 regalloc - Number of spills inserted
define void @wrap_mul4(double* nocapture %Out, [4 x double]* nocapture %A, [4 x double]* nocapture %B) #0 {
entry:
- %arrayidx1.i = getelementptr inbounds [4 x double]* %A, i64 0, i64 0
- %0 = load double* %arrayidx1.i, align 8
- %arrayidx3.i = getelementptr inbounds [4 x double]* %B, i64 0, i64 0
- %1 = load double* %arrayidx3.i, align 8
+ %arrayidx1.i = getelementptr inbounds [4 x double], [4 x double]* %A, i64 0, i64 0
+ %0 = load double, double* %arrayidx1.i, align 8
+ %arrayidx3.i = getelementptr inbounds [4 x double], [4 x double]* %B, i64 0, i64 0
+ %1 = load double, double* %arrayidx3.i, align 8
%mul.i = fmul double %0, %1
- %arrayidx5.i = getelementptr inbounds [4 x double]* %A, i64 0, i64 1
- %2 = load double* %arrayidx5.i, align 8
- %arrayidx7.i = getelementptr inbounds [4 x double]* %B, i64 1, i64 0
- %3 = load double* %arrayidx7.i, align 8
+ %arrayidx5.i = getelementptr inbounds [4 x double], [4 x double]* %A, i64 0, i64 1
+ %2 = load double, double* %arrayidx5.i, align 8
+ %arrayidx7.i = getelementptr inbounds [4 x double], [4 x double]* %B, i64 1, i64 0
+ %3 = load double, double* %arrayidx7.i, align 8
%mul8.i = fmul double %2, %3
%add.i = fadd double %mul.i, %mul8.i
- %arrayidx10.i = getelementptr inbounds [4 x double]* %A, i64 0, i64 2
- %4 = load double* %arrayidx10.i, align 8
- %arrayidx12.i = getelementptr inbounds [4 x double]* %B, i64 2, i64 0
- %5 = load double* %arrayidx12.i, align 8
+ %arrayidx10.i = getelementptr inbounds [4 x double], [4 x double]* %A, i64 0, i64 2
+ %4 = load double, double* %arrayidx10.i, align 8
+ %arrayidx12.i = getelementptr inbounds [4 x double], [4 x double]* %B, i64 2, i64 0
+ %5 = load double, double* %arrayidx12.i, align 8
%mul13.i = fmul double %4, %5
%add14.i = fadd double %add.i, %mul13.i
- %arrayidx16.i = getelementptr inbounds [4 x double]* %A, i64 0, i64 3
- %6 = load double* %arrayidx16.i, align 8
- %arrayidx18.i = getelementptr inbounds [4 x double]* %B, i64 3, i64 0
- %7 = load double* %arrayidx18.i, align 8
+ %arrayidx16.i = getelementptr inbounds [4 x double], [4 x double]* %A, i64 0, i64 3
+ %6 = load double, double* %arrayidx16.i, align 8
+ %arrayidx18.i = getelementptr inbounds [4 x double], [4 x double]* %B, i64 3, i64 0
+ %7 = load double, double* %arrayidx18.i, align 8
%mul19.i = fmul double %6, %7
%add20.i = fadd double %add14.i, %mul19.i
- %arrayidx25.i = getelementptr inbounds [4 x double]* %B, i64 0, i64 1
- %8 = load double* %arrayidx25.i, align 8
+ %arrayidx25.i = getelementptr inbounds [4 x double], [4 x double]* %B, i64 0, i64 1
+ %8 = load double, double* %arrayidx25.i, align 8
%mul26.i = fmul double %0, %8
- %arrayidx30.i = getelementptr inbounds [4 x double]* %B, i64 1, i64 1
- %9 = load double* %arrayidx30.i, align 8
+ %arrayidx30.i = getelementptr inbounds [4 x double], [4 x double]* %B, i64 1, i64 1
+ %9 = load double, double* %arrayidx30.i, align 8
%mul31.i = fmul double %2, %9
%add32.i = fadd double %mul26.i, %mul31.i
- %arrayidx36.i = getelementptr inbounds [4 x double]* %B, i64 2, i64 1
- %10 = load double* %arrayidx36.i, align 8
+ %arrayidx36.i = getelementptr inbounds [4 x double], [4 x double]* %B, i64 2, i64 1
+ %10 = load double, double* %arrayidx36.i, align 8
%mul37.i = fmul double %4, %10
%add38.i = fadd double %add32.i, %mul37.i
- %arrayidx42.i = getelementptr inbounds [4 x double]* %B, i64 3, i64 1
- %11 = load double* %arrayidx42.i, align 8
+ %arrayidx42.i = getelementptr inbounds [4 x double], [4 x double]* %B, i64 3, i64 1
+ %11 = load double, double* %arrayidx42.i, align 8
%mul43.i = fmul double %6, %11
%add44.i = fadd double %add38.i, %mul43.i
- %arrayidx49.i = getelementptr inbounds [4 x double]* %B, i64 0, i64 2
- %12 = load double* %arrayidx49.i, align 8
+ %arrayidx49.i = getelementptr inbounds [4 x double], [4 x double]* %B, i64 0, i64 2
+ %12 = load double, double* %arrayidx49.i, align 8
%mul50.i = fmul double %0, %12
- %arrayidx54.i = getelementptr inbounds [4 x double]* %B, i64 1, i64 2
- %13 = load double* %arrayidx54.i, align 8
+ %arrayidx54.i = getelementptr inbounds [4 x double], [4 x double]* %B, i64 1, i64 2
+ %13 = load double, double* %arrayidx54.i, align 8
%mul55.i = fmul double %2, %13
%add56.i = fadd double %mul50.i, %mul55.i
- %arrayidx60.i = getelementptr inbounds [4 x double]* %B, i64 2, i64 2
- %14 = load double* %arrayidx60.i, align 8
+ %arrayidx60.i = getelementptr inbounds [4 x double], [4 x double]* %B, i64 2, i64 2
+ %14 = load double, double* %arrayidx60.i, align 8
%mul61.i = fmul double %4, %14
%add62.i = fadd double %add56.i, %mul61.i
- %arrayidx66.i = getelementptr inbounds [4 x double]* %B, i64 3, i64 2
- %15 = load double* %arrayidx66.i, align 8
+ %arrayidx66.i = getelementptr inbounds [4 x double], [4 x double]* %B, i64 3, i64 2
+ %15 = load double, double* %arrayidx66.i, align 8
%mul67.i = fmul double %6, %15
%add68.i = fadd double %add62.i, %mul67.i
- %arrayidx73.i = getelementptr inbounds [4 x double]* %B, i64 0, i64 3
- %16 = load double* %arrayidx73.i, align 8
+ %arrayidx73.i = getelementptr inbounds [4 x double], [4 x double]* %B, i64 0, i64 3
+ %16 = load double, double* %arrayidx73.i, align 8
%mul74.i = fmul double %0, %16
- %arrayidx78.i = getelementptr inbounds [4 x double]* %B, i64 1, i64 3
- %17 = load double* %arrayidx78.i, align 8
+ %arrayidx78.i = getelementptr inbounds [4 x double], [4 x double]* %B, i64 1, i64 3
+ %17 = load double, double* %arrayidx78.i, align 8
%mul79.i = fmul double %2, %17
%add80.i = fadd double %mul74.i, %mul79.i
- %arrayidx84.i = getelementptr inbounds [4 x double]* %B, i64 2, i64 3
- %18 = load double* %arrayidx84.i, align 8
+ %arrayidx84.i = getelementptr inbounds [4 x double], [4 x double]* %B, i64 2, i64 3
+ %18 = load double, double* %arrayidx84.i, align 8
%mul85.i = fmul double %4, %18
%add86.i = fadd double %add80.i, %mul85.i
- %arrayidx90.i = getelementptr inbounds [4 x double]* %B, i64 3, i64 3
- %19 = load double* %arrayidx90.i, align 8
+ %arrayidx90.i = getelementptr inbounds [4 x double], [4 x double]* %B, i64 3, i64 3
+ %19 = load double, double* %arrayidx90.i, align 8
%mul91.i = fmul double %6, %19
%add92.i = fadd double %add86.i, %mul91.i
- %arrayidx95.i = getelementptr inbounds [4 x double]* %A, i64 1, i64 0
- %20 = load double* %arrayidx95.i, align 8
+ %arrayidx95.i = getelementptr inbounds [4 x double], [4 x double]* %A, i64 1, i64 0
+ %20 = load double, double* %arrayidx95.i, align 8
%mul98.i = fmul double %1, %20
- %arrayidx100.i = getelementptr inbounds [4 x double]* %A, i64 1, i64 1
- %21 = load double* %arrayidx100.i, align 8
+ %arrayidx100.i = getelementptr inbounds [4 x double], [4 x double]* %A, i64 1, i64 1
+ %21 = load double, double* %arrayidx100.i, align 8
%mul103.i = fmul double %3, %21
%add104.i = fadd double %mul98.i, %mul103.i
- %arrayidx106.i = getelementptr inbounds [4 x double]* %A, i64 1, i64 2
- %22 = load double* %arrayidx106.i, align 8
+ %arrayidx106.i = getelementptr inbounds [4 x double], [4 x double]* %A, i64 1, i64 2
+ %22 = load double, double* %arrayidx106.i, align 8
%mul109.i = fmul double %5, %22
%add110.i = fadd double %add104.i, %mul109.i
- %arrayidx112.i = getelementptr inbounds [4 x double]* %A, i64 1, i64 3
- %23 = load double* %arrayidx112.i, align 8
+ %arrayidx112.i = getelementptr inbounds [4 x double], [4 x double]* %A, i64 1, i64 3
+ %23 = load double, double* %arrayidx112.i, align 8
%mul115.i = fmul double %7, %23
%add116.i = fadd double %add110.i, %mul115.i
%mul122.i = fmul double %8, %20
%add182.i = fadd double %add176.i, %mul181.i
%mul187.i = fmul double %19, %23
%add188.i = fadd double %add182.i, %mul187.i
- %arrayidx191.i = getelementptr inbounds [4 x double]* %A, i64 2, i64 0
- %24 = load double* %arrayidx191.i, align 8
+ %arrayidx191.i = getelementptr inbounds [4 x double], [4 x double]* %A, i64 2, i64 0
+ %24 = load double, double* %arrayidx191.i, align 8
%mul194.i = fmul double %1, %24
- %arrayidx196.i = getelementptr inbounds [4 x double]* %A, i64 2, i64 1
- %25 = load double* %arrayidx196.i, align 8
+ %arrayidx196.i = getelementptr inbounds [4 x double], [4 x double]* %A, i64 2, i64 1
+ %25 = load double, double* %arrayidx196.i, align 8
%mul199.i = fmul double %3, %25
%add200.i = fadd double %mul194.i, %mul199.i
- %arrayidx202.i = getelementptr inbounds [4 x double]* %A, i64 2, i64 2
- %26 = load double* %arrayidx202.i, align 8
+ %arrayidx202.i = getelementptr inbounds [4 x double], [4 x double]* %A, i64 2, i64 2
+ %26 = load double, double* %arrayidx202.i, align 8
%mul205.i = fmul double %5, %26
%add206.i = fadd double %add200.i, %mul205.i
- %arrayidx208.i = getelementptr inbounds [4 x double]* %A, i64 2, i64 3
- %27 = load double* %arrayidx208.i, align 8
+ %arrayidx208.i = getelementptr inbounds [4 x double], [4 x double]* %A, i64 2, i64 3
+ %27 = load double, double* %arrayidx208.i, align 8
%mul211.i = fmul double %7, %27
%add212.i = fadd double %add206.i, %mul211.i
%mul218.i = fmul double %8, %24
%add278.i = fadd double %add272.i, %mul277.i
%mul283.i = fmul double %19, %27
%add284.i = fadd double %add278.i, %mul283.i
- %arrayidx287.i = getelementptr inbounds [4 x double]* %A, i64 3, i64 0
- %28 = load double* %arrayidx287.i, align 8
+ %arrayidx287.i = getelementptr inbounds [4 x double], [4 x double]* %A, i64 3, i64 0
+ %28 = load double, double* %arrayidx287.i, align 8
%mul290.i = fmul double %1, %28
- %arrayidx292.i = getelementptr inbounds [4 x double]* %A, i64 3, i64 1
- %29 = load double* %arrayidx292.i, align 8
+ %arrayidx292.i = getelementptr inbounds [4 x double], [4 x double]* %A, i64 3, i64 1
+ %29 = load double, double* %arrayidx292.i, align 8
%mul295.i = fmul double %3, %29
%add296.i = fadd double %mul290.i, %mul295.i
- %arrayidx298.i = getelementptr inbounds [4 x double]* %A, i64 3, i64 2
- %30 = load double* %arrayidx298.i, align 8
+ %arrayidx298.i = getelementptr inbounds [4 x double], [4 x double]* %A, i64 3, i64 2
+ %30 = load double, double* %arrayidx298.i, align 8
%mul301.i = fmul double %5, %30
%add302.i = fadd double %add296.i, %mul301.i
- %arrayidx304.i = getelementptr inbounds [4 x double]* %A, i64 3, i64 3
- %31 = load double* %arrayidx304.i, align 8
+ %arrayidx304.i = getelementptr inbounds [4 x double], [4 x double]* %A, i64 3, i64 3
+ %31 = load double, double* %arrayidx304.i, align 8
%mul307.i = fmul double %7, %31
%add308.i = fadd double %add302.i, %mul307.i
%mul314.i = fmul double %8, %28
%mul379.i = fmul double %19, %31
%add380.i = fadd double %add374.i, %mul379.i
store double %add20.i, double* %Out, align 8
- %Res.i.sroa.1.8.idx2 = getelementptr inbounds double* %Out, i64 1
+ %Res.i.sroa.1.8.idx2 = getelementptr inbounds double, double* %Out, i64 1
store double %add44.i, double* %Res.i.sroa.1.8.idx2, align 8
- %Res.i.sroa.2.16.idx4 = getelementptr inbounds double* %Out, i64 2
+ %Res.i.sroa.2.16.idx4 = getelementptr inbounds double, double* %Out, i64 2
store double %add68.i, double* %Res.i.sroa.2.16.idx4, align 8
- %Res.i.sroa.3.24.idx6 = getelementptr inbounds double* %Out, i64 3
+ %Res.i.sroa.3.24.idx6 = getelementptr inbounds double, double* %Out, i64 3
store double %add92.i, double* %Res.i.sroa.3.24.idx6, align 8
- %Res.i.sroa.4.32.idx8 = getelementptr inbounds double* %Out, i64 4
+ %Res.i.sroa.4.32.idx8 = getelementptr inbounds double, double* %Out, i64 4
store double %add116.i, double* %Res.i.sroa.4.32.idx8, align 8
- %Res.i.sroa.5.40.idx10 = getelementptr inbounds double* %Out, i64 5
+ %Res.i.sroa.5.40.idx10 = getelementptr inbounds double, double* %Out, i64 5
store double %add140.i, double* %Res.i.sroa.5.40.idx10, align 8
- %Res.i.sroa.6.48.idx12 = getelementptr inbounds double* %Out, i64 6
+ %Res.i.sroa.6.48.idx12 = getelementptr inbounds double, double* %Out, i64 6
store double %add164.i, double* %Res.i.sroa.6.48.idx12, align 8
- %Res.i.sroa.7.56.idx14 = getelementptr inbounds double* %Out, i64 7
+ %Res.i.sroa.7.56.idx14 = getelementptr inbounds double, double* %Out, i64 7
store double %add188.i, double* %Res.i.sroa.7.56.idx14, align 8
- %Res.i.sroa.8.64.idx16 = getelementptr inbounds double* %Out, i64 8
+ %Res.i.sroa.8.64.idx16 = getelementptr inbounds double, double* %Out, i64 8
store double %add212.i, double* %Res.i.sroa.8.64.idx16, align 8
- %Res.i.sroa.9.72.idx18 = getelementptr inbounds double* %Out, i64 9
+ %Res.i.sroa.9.72.idx18 = getelementptr inbounds double, double* %Out, i64 9
store double %add236.i, double* %Res.i.sroa.9.72.idx18, align 8
- %Res.i.sroa.10.80.idx20 = getelementptr inbounds double* %Out, i64 10
+ %Res.i.sroa.10.80.idx20 = getelementptr inbounds double, double* %Out, i64 10
store double %add260.i, double* %Res.i.sroa.10.80.idx20, align 8
- %Res.i.sroa.11.88.idx22 = getelementptr inbounds double* %Out, i64 11
+ %Res.i.sroa.11.88.idx22 = getelementptr inbounds double, double* %Out, i64 11
store double %add284.i, double* %Res.i.sroa.11.88.idx22, align 8
- %Res.i.sroa.12.96.idx24 = getelementptr inbounds double* %Out, i64 12
+ %Res.i.sroa.12.96.idx24 = getelementptr inbounds double, double* %Out, i64 12
store double %add308.i, double* %Res.i.sroa.12.96.idx24, align 8
- %Res.i.sroa.13.104.idx26 = getelementptr inbounds double* %Out, i64 13
+ %Res.i.sroa.13.104.idx26 = getelementptr inbounds double, double* %Out, i64 13
store double %add332.i, double* %Res.i.sroa.13.104.idx26, align 8
- %Res.i.sroa.14.112.idx28 = getelementptr inbounds double* %Out, i64 14
+ %Res.i.sroa.14.112.idx28 = getelementptr inbounds double, double* %Out, i64 14
store double %add356.i, double* %Res.i.sroa.14.112.idx28, align 8
- %Res.i.sroa.15.120.idx30 = getelementptr inbounds double* %Out, i64 15
+ %Res.i.sroa.15.120.idx30 = getelementptr inbounds double, double* %Out, i64 15
store double %add380.i, double* %Res.i.sroa.15.120.idx30, align 8
ret void
}
-attributes #0 = { noinline nounwind ssp uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-frame-pointer-elim-non-leaf"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "unsafe-fp-math"="false" "use-soft-float"="false" }
+attributes #0 = { noinline nounwind ssp uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "unsafe-fp-math"="false" "use-soft-float"="false" }
projects / oota-llvm.git / blobdiff