mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-07-21 18:29:45 +00:00
2741d2cfdf
This cleans up the method used to find trip counts in order to form CTR loops on PPC. This refactoring allows the pass to find loops which have a constant trip count but also happen to end with a comparison to zero. This also adds explicit FIXMEs to mark two different classes of loops that are currently ignored. In addition, we now search through all potential induction operations instead of just the first. Also, we check the predicate code on the conditional branch and abort the transformation if the code is not EQ or NE, and we then make sure that the branch to be transformed matches the condition register defined by the comparison (multiple possible comparisons will be considered). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158607 91177308-0d34-0410-b5e6-96231b3b80d8
157 lines
9.4 KiB
LLVM
157 lines
9.4 KiB
LLVM
; ModuleID = 'tsc_s000.c'
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target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v128:128:128-n32:64"
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target triple = "powerpc64-unknown-linux-gnu"
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; RUN: llc < %s -march=ppc64 | FileCheck %s
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@Y = common global [16000 x double] zeroinitializer, align 32
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@X = common global [16000 x double] zeroinitializer, align 32
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@Z = common global [16000 x double] zeroinitializer, align 32
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@U = common global [16000 x double] zeroinitializer, align 32
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@V = common global [16000 x double] zeroinitializer, align 32
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@aa = common global [256 x [256 x double]] zeroinitializer, align 32
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@bb = common global [256 x [256 x double]] zeroinitializer, align 32
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@cc = common global [256 x [256 x double]] zeroinitializer, align 32
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@array = common global [65536 x double] zeroinitializer, align 32
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@x = common global [16000 x double] zeroinitializer, align 32
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@temp = common global double 0.000000e+00, align 8
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@temp_int = common global i32 0, align 4
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@a = common global [16000 x double] zeroinitializer, align 32
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@b = common global [16000 x double] zeroinitializer, align 32
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@c = common global [16000 x double] zeroinitializer, align 32
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@d = common global [16000 x double] zeroinitializer, align 32
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@e = common global [16000 x double] zeroinitializer, align 32
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@tt = common global [256 x [256 x double]] zeroinitializer, align 32
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@indx = common global [16000 x i32] zeroinitializer, align 32
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@xx = common global double* null, align 8
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@yy = common global double* null, align 8
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define i32 @s000() nounwind {
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entry:
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br label %for.cond1.preheader
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for.cond1.preheader: ; preds = %for.end, %entry
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%nl.010 = phi i32 [ 0, %entry ], [ %inc7, %for.end ]
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br label %for.body3
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for.body3: ; preds = %for.body3, %for.cond1.preheader
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%indvars.iv = phi i64 [ 0, %for.cond1.preheader ], [ %indvars.iv.next.15, %for.body3 ]
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%arrayidx = getelementptr inbounds [16000 x double]* @Y, i64 0, i64 %indvars.iv
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%0 = load double* %arrayidx, align 32, !tbaa !0
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%add = fadd double %0, 1.000000e+00
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%arrayidx5 = getelementptr inbounds [16000 x double]* @X, i64 0, i64 %indvars.iv
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store double %add, double* %arrayidx5, align 32, !tbaa !0
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%indvars.iv.next11 = or i64 %indvars.iv, 1
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%arrayidx.1 = getelementptr inbounds [16000 x double]* @Y, i64 0, i64 %indvars.iv.next11
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%1 = load double* %arrayidx.1, align 8, !tbaa !0
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%add.1 = fadd double %1, 1.000000e+00
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%arrayidx5.1 = getelementptr inbounds [16000 x double]* @X, i64 0, i64 %indvars.iv.next11
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store double %add.1, double* %arrayidx5.1, align 8, !tbaa !0
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%indvars.iv.next.112 = or i64 %indvars.iv, 2
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%arrayidx.2 = getelementptr inbounds [16000 x double]* @Y, i64 0, i64 %indvars.iv.next.112
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%2 = load double* %arrayidx.2, align 16, !tbaa !0
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%add.2 = fadd double %2, 1.000000e+00
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%arrayidx5.2 = getelementptr inbounds [16000 x double]* @X, i64 0, i64 %indvars.iv.next.112
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store double %add.2, double* %arrayidx5.2, align 16, !tbaa !0
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%indvars.iv.next.213 = or i64 %indvars.iv, 3
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%arrayidx.3 = getelementptr inbounds [16000 x double]* @Y, i64 0, i64 %indvars.iv.next.213
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%3 = load double* %arrayidx.3, align 8, !tbaa !0
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%add.3 = fadd double %3, 1.000000e+00
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%arrayidx5.3 = getelementptr inbounds [16000 x double]* @X, i64 0, i64 %indvars.iv.next.213
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store double %add.3, double* %arrayidx5.3, align 8, !tbaa !0
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%indvars.iv.next.314 = or i64 %indvars.iv, 4
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%arrayidx.4 = getelementptr inbounds [16000 x double]* @Y, i64 0, i64 %indvars.iv.next.314
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%4 = load double* %arrayidx.4, align 32, !tbaa !0
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%add.4 = fadd double %4, 1.000000e+00
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%arrayidx5.4 = getelementptr inbounds [16000 x double]* @X, i64 0, i64 %indvars.iv.next.314
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store double %add.4, double* %arrayidx5.4, align 32, !tbaa !0
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%indvars.iv.next.415 = or i64 %indvars.iv, 5
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%arrayidx.5 = getelementptr inbounds [16000 x double]* @Y, i64 0, i64 %indvars.iv.next.415
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%5 = load double* %arrayidx.5, align 8, !tbaa !0
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%add.5 = fadd double %5, 1.000000e+00
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%arrayidx5.5 = getelementptr inbounds [16000 x double]* @X, i64 0, i64 %indvars.iv.next.415
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store double %add.5, double* %arrayidx5.5, align 8, !tbaa !0
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%indvars.iv.next.516 = or i64 %indvars.iv, 6
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%arrayidx.6 = getelementptr inbounds [16000 x double]* @Y, i64 0, i64 %indvars.iv.next.516
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%6 = load double* %arrayidx.6, align 16, !tbaa !0
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%add.6 = fadd double %6, 1.000000e+00
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%arrayidx5.6 = getelementptr inbounds [16000 x double]* @X, i64 0, i64 %indvars.iv.next.516
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store double %add.6, double* %arrayidx5.6, align 16, !tbaa !0
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%indvars.iv.next.617 = or i64 %indvars.iv, 7
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%arrayidx.7 = getelementptr inbounds [16000 x double]* @Y, i64 0, i64 %indvars.iv.next.617
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%7 = load double* %arrayidx.7, align 8, !tbaa !0
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%add.7 = fadd double %7, 1.000000e+00
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%arrayidx5.7 = getelementptr inbounds [16000 x double]* @X, i64 0, i64 %indvars.iv.next.617
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store double %add.7, double* %arrayidx5.7, align 8, !tbaa !0
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%indvars.iv.next.718 = or i64 %indvars.iv, 8
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%arrayidx.8 = getelementptr inbounds [16000 x double]* @Y, i64 0, i64 %indvars.iv.next.718
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%8 = load double* %arrayidx.8, align 32, !tbaa !0
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%add.8 = fadd double %8, 1.000000e+00
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%arrayidx5.8 = getelementptr inbounds [16000 x double]* @X, i64 0, i64 %indvars.iv.next.718
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store double %add.8, double* %arrayidx5.8, align 32, !tbaa !0
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%indvars.iv.next.819 = or i64 %indvars.iv, 9
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%arrayidx.9 = getelementptr inbounds [16000 x double]* @Y, i64 0, i64 %indvars.iv.next.819
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%9 = load double* %arrayidx.9, align 8, !tbaa !0
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%add.9 = fadd double %9, 1.000000e+00
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%arrayidx5.9 = getelementptr inbounds [16000 x double]* @X, i64 0, i64 %indvars.iv.next.819
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store double %add.9, double* %arrayidx5.9, align 8, !tbaa !0
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%indvars.iv.next.920 = or i64 %indvars.iv, 10
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%arrayidx.10 = getelementptr inbounds [16000 x double]* @Y, i64 0, i64 %indvars.iv.next.920
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%10 = load double* %arrayidx.10, align 16, !tbaa !0
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%add.10 = fadd double %10, 1.000000e+00
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%arrayidx5.10 = getelementptr inbounds [16000 x double]* @X, i64 0, i64 %indvars.iv.next.920
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store double %add.10, double* %arrayidx5.10, align 16, !tbaa !0
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%indvars.iv.next.1021 = or i64 %indvars.iv, 11
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%arrayidx.11 = getelementptr inbounds [16000 x double]* @Y, i64 0, i64 %indvars.iv.next.1021
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%11 = load double* %arrayidx.11, align 8, !tbaa !0
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%add.11 = fadd double %11, 1.000000e+00
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%arrayidx5.11 = getelementptr inbounds [16000 x double]* @X, i64 0, i64 %indvars.iv.next.1021
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store double %add.11, double* %arrayidx5.11, align 8, !tbaa !0
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%indvars.iv.next.1122 = or i64 %indvars.iv, 12
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%arrayidx.12 = getelementptr inbounds [16000 x double]* @Y, i64 0, i64 %indvars.iv.next.1122
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%12 = load double* %arrayidx.12, align 32, !tbaa !0
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%add.12 = fadd double %12, 1.000000e+00
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%arrayidx5.12 = getelementptr inbounds [16000 x double]* @X, i64 0, i64 %indvars.iv.next.1122
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store double %add.12, double* %arrayidx5.12, align 32, !tbaa !0
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%indvars.iv.next.1223 = or i64 %indvars.iv, 13
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%arrayidx.13 = getelementptr inbounds [16000 x double]* @Y, i64 0, i64 %indvars.iv.next.1223
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%13 = load double* %arrayidx.13, align 8, !tbaa !0
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%add.13 = fadd double %13, 1.000000e+00
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%arrayidx5.13 = getelementptr inbounds [16000 x double]* @X, i64 0, i64 %indvars.iv.next.1223
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store double %add.13, double* %arrayidx5.13, align 8, !tbaa !0
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%indvars.iv.next.1324 = or i64 %indvars.iv, 14
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%arrayidx.14 = getelementptr inbounds [16000 x double]* @Y, i64 0, i64 %indvars.iv.next.1324
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%14 = load double* %arrayidx.14, align 16, !tbaa !0
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%add.14 = fadd double %14, 1.000000e+00
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%arrayidx5.14 = getelementptr inbounds [16000 x double]* @X, i64 0, i64 %indvars.iv.next.1324
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store double %add.14, double* %arrayidx5.14, align 16, !tbaa !0
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%indvars.iv.next.1425 = or i64 %indvars.iv, 15
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%arrayidx.15 = getelementptr inbounds [16000 x double]* @Y, i64 0, i64 %indvars.iv.next.1425
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%15 = load double* %arrayidx.15, align 8, !tbaa !0
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%add.15 = fadd double %15, 1.000000e+00
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%arrayidx5.15 = getelementptr inbounds [16000 x double]* @X, i64 0, i64 %indvars.iv.next.1425
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store double %add.15, double* %arrayidx5.15, align 8, !tbaa !0
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%indvars.iv.next.15 = add i64 %indvars.iv, 16
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%lftr.wideiv.15 = trunc i64 %indvars.iv.next.15 to i32
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%exitcond.15 = icmp eq i32 %lftr.wideiv.15, 16000
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br i1 %exitcond.15, label %for.end, label %for.body3
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for.end: ; preds = %for.body3
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%call = tail call i32 @dummy(double* getelementptr inbounds ([16000 x double]* @X, i64 0, i64 0), double* getelementptr inbounds ([16000 x double]* @Y, i64 0, i64 0), double* getelementptr inbounds ([16000 x double]* @Z, i64 0, i64 0), double* getelementptr inbounds ([16000 x double]* @U, i64 0, i64 0), double* getelementptr inbounds ([16000 x double]* @V, i64 0, i64 0), [256 x double]* getelementptr inbounds ([256 x [256 x double]]* @aa, i64 0, i64 0), [256 x double]* getelementptr inbounds ([256 x [256 x double]]* @bb, i64 0, i64 0), [256 x double]* getelementptr inbounds ([256 x [256 x double]]* @cc, i64 0, i64 0), double 0.000000e+00) nounwind
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%inc7 = add nsw i32 %nl.010, 1
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%exitcond = icmp eq i32 %inc7, 400000
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br i1 %exitcond, label %for.end8, label %for.cond1.preheader
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for.end8: ; preds = %for.end
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ret i32 0
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; CHECK: @s000
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; CHECK: mtctr
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; CHECK: bdnz
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}
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declare i32 @dummy(double*, double*, double*, double*, double*, [256 x double]*, [256 x double]*, [256 x double]*, double)
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!0 = metadata !{metadata !"double", metadata !1}
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!1 = metadata !{metadata !"omnipotent char", metadata !2}
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!2 = metadata !{metadata !"Simple C/C++ TBAA"}
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