Add test case - this input used to crash because of duplicate generation of SPILL_CRs

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145820 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 191 insertions, 0 deletions

diff --git a/test/CodeGen/PowerPC/2011-12-05-NoSpillDupCR.ll b/test/CodeGen/PowerPC/2011-12-05-NoSpillDupCR.ll
new file mode 100644
index 0000000000..6161b55ede
--- /dev/null
+++ b/test/CodeGen/PowerPC/2011-12-05-NoSpillDupCR.ll
@@ -0,0 +1,191 @@
+; RUN: llc < %s -mtriple=powerpc-apple-darwin -mcpu=g4 | FileCheck %s
+; RUN: llc < %s -mtriple=powerpc64-unknown-linux-gnu -mcpu=g4 | FileCheck %s
+
+; ModuleID = 'tsc.c'
+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"
+target triple = "powerpc64-unknown-linux-gnu"
+
+@a = common global [32000 x float] zeroinitializer, align 16
+@b = common global [32000 x float] zeroinitializer, align 16
+@c = common global [32000 x float] zeroinitializer, align 16
+@d = common global [32000 x float] zeroinitializer, align 16
+@e = common global [32000 x float] zeroinitializer, align 16
+@aa = common global [256 x [256 x float]] zeroinitializer, align 16
+@bb = common global [256 x [256 x float]] zeroinitializer, align 16
+@cc = common global [256 x [256 x float]] zeroinitializer, align 16
+
+@.str11 = private unnamed_addr constant [6 x i8] c"s122 \00", align 1
+@.str152 = private unnamed_addr constant [14 x i8] c"S122\09 %.2f \09\09\00", align 1
+
+declare i32 @printf(i8* nocapture, ...) nounwind
+declare i32 @init(i8* %name) nounwind
+declare i64 @clock() nounwind
+declare i32 @dummy(float*, float*, float*, float*, float*, [256 x float]*, [256 x float]*, [256 x float]*, float)
+declare void @check(i32 %name) nounwind
+
+; CHECK: mfcr
+; CHECK: mtcr
+
+define i32 @s122(i32 %n1, i32 %n3) nounwind {
+entry:
+  %call = tail call i32 @init(i8* getelementptr inbounds ([6 x i8]* @.str11, i64 0, i64 0))
+  %call1 = tail call i64 @clock() nounwind
+  %sub = add nsw i32 %n1, -1
+  %cmp316 = icmp slt i32 %sub, 32000
+  br i1 %cmp316, label %entry.split.us, label %for.end.7
+
+entry.split.us:                                   ; preds = %entry
+  %0 = sext i32 %sub to i64
+  %1 = sext i32 %n3 to i64
+  br label %for.body4.lr.ph.us
+
+for.body4.us:                                     ; preds = %for.body4.lr.ph.us, %for.body4.us
+  %indvars.iv20 = phi i64 [ 0, %for.body4.lr.ph.us ], [ %indvars.iv.next21, %for.body4.us ]
+  %indvars.iv = phi i64 [ %0, %for.body4.lr.ph.us ], [ %indvars.iv.next, %for.body4.us ]
+  %indvars.iv.next21 = add i64 %indvars.iv20, 1
+  %sub5.us = sub i64 31999, %indvars.iv20
+  %sext = shl i64 %sub5.us, 32
+  %idxprom.us = ashr exact i64 %sext, 32
+  %arrayidx.us = getelementptr inbounds [32000 x float]* @b, i64 0, i64 %idxprom.us
+  %2 = load float* %arrayidx.us, align 4, !tbaa !5
+  %arrayidx7.us = getelementptr inbounds [32000 x float]* @a, i64 0, i64 %indvars.iv
+  %3 = load float* %arrayidx7.us, align 4, !tbaa !5
+  %add8.us = fadd float %3, %2
+  store float %add8.us, float* %arrayidx7.us, align 4, !tbaa !5
+  %indvars.iv.next = add i64 %indvars.iv, %1
+  %4 = trunc i64 %indvars.iv.next to i32
+  %cmp3.us = icmp slt i32 %4, 32000
+  br i1 %cmp3.us, label %for.body4.us, label %for.body4.lr.ph.us.1
+
+for.body4.lr.ph.us:                               ; preds = %entry.split.us, %for.end.us.4
+  %nl.019.us = phi i32 [ 0, %entry.split.us ], [ %inc.us.4, %for.end.us.4 ]
+  br label %for.body4.us
+
+for.end12:                                        ; preds = %for.end.7, %for.end.us.4
+  %call13 = tail call i64 @clock() nounwind
+  %sub14 = sub nsw i64 %call13, %call1
+  %conv = sitofp i64 %sub14 to double
+  %div = fdiv double %conv, 1.000000e+06
+  %call15 = tail call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([14 x i8]* @.str152, i64 0, i64 0), double %div) nounwind
+  tail call void @check(i32 1)
+  ret i32 0
+
+for.body4.lr.ph.us.1:                             ; preds = %for.body4.us
+  %call10.us = tail call i32 @dummy(float* getelementptr inbounds ([32000 x float]* @a, i64 0, i64 0), float* getelementptr inbounds ([32000 x float]* @b, i64 0, i64 0), float* getelementptr inbounds ([32000 x float]* @c, i64 0, i64 0), float* getelementptr inbounds ([32000 x float]* @d, i64 0, i64 0), float* getelementptr inbounds ([32000 x float]* @e, i64 0, i64 0), [256 x float]* getelementptr inbounds ([256 x [256 x float]]* @aa, i64 0, i64 0), [256 x float]* getelementptr inbounds ([256 x [256 x float]]* @bb, i64 0, i64 0), [256 x float]* getelementptr inbounds ([256 x [256 x float]]* @cc, i64 0, i64 0), float 0.000000e+00) nounwind
+  br label %for.body4.us.1
+
+for.body4.us.1:                                   ; preds = %for.body4.us.1, %for.body4.lr.ph.us.1
+  %indvars.iv20.1 = phi i64 [ 0, %for.body4.lr.ph.us.1 ], [ %indvars.iv.next21.1, %for.body4.us.1 ]
+  %indvars.iv.1 = phi i64 [ %0, %for.body4.lr.ph.us.1 ], [ %indvars.iv.next.1, %for.body4.us.1 ]
+  %indvars.iv.next21.1 = add i64 %indvars.iv20.1, 1
+  %sub5.us.1 = sub i64 31999, %indvars.iv20.1
+  %sext23 = shl i64 %sub5.us.1, 32
+  %idxprom.us.1 = ashr exact i64 %sext23, 32
+  %arrayidx.us.1 = getelementptr inbounds [32000 x float]* @b, i64 0, i64 %idxprom.us.1
+  %5 = load float* %arrayidx.us.1, align 4, !tbaa !5
+  %arrayidx7.us.1 = getelementptr inbounds [32000 x float]* @a, i64 0, i64 %indvars.iv.1
+  %6 = load float* %arrayidx7.us.1, align 4, !tbaa !5
+  %add8.us.1 = fadd float %6, %5
+  store float %add8.us.1, float* %arrayidx7.us.1, align 4, !tbaa !5
+  %indvars.iv.next.1 = add i64 %indvars.iv.1, %1
+  %7 = trunc i64 %indvars.iv.next.1 to i32
+  %cmp3.us.1 = icmp slt i32 %7, 32000
+  br i1 %cmp3.us.1, label %for.body4.us.1, label %for.body4.lr.ph.us.2
+
+for.body4.lr.ph.us.2:                             ; preds = %for.body4.us.1
+  %call10.us.1 = tail call i32 @dummy(float* getelementptr inbounds ([32000 x float]* @a, i64 0, i64 0), float* getelementptr inbounds ([32000 x float]* @b, i64 0, i64 0), float* getelementptr inbounds ([32000 x float]* @c, i64 0, i64 0), float* getelementptr inbounds ([32000 x float]* @d, i64 0, i64 0), float* getelementptr inbounds ([32000 x float]* @e, i64 0, i64 0), [256 x float]* getelementptr inbounds ([256 x [256 x float]]* @aa, i64 0, i64 0), [256 x float]* getelementptr inbounds ([256 x [256 x float]]* @bb, i64 0, i64 0), [256 x float]* getelementptr inbounds ([256 x [256 x float]]* @cc, i64 0, i64 0), float 0.000000e+00) nounwind
+  br label %for.body4.us.2
+
+for.body4.us.2:                                   ; preds = %for.body4.us.2, %for.body4.lr.ph.us.2
+  %indvars.iv20.2 = phi i64 [ 0, %for.body4.lr.ph.us.2 ], [ %indvars.iv.next21.2, %for.body4.us.2 ]
+  %indvars.iv.2 = phi i64 [ %0, %for.body4.lr.ph.us.2 ], [ %indvars.iv.next.2, %for.body4.us.2 ]
+  %indvars.iv.next21.2 = add i64 %indvars.iv20.2, 1
+  %sub5.us.2 = sub i64 31999, %indvars.iv20.2
+  %sext24 = shl i64 %sub5.us.2, 32
+  %idxprom.us.2 = ashr exact i64 %sext24, 32
+  %arrayidx.us.2 = getelementptr inbounds [32000 x float]* @b, i64 0, i64 %idxprom.us.2
+  %8 = load float* %arrayidx.us.2, align 4, !tbaa !5
+  %arrayidx7.us.2 = getelementptr inbounds [32000 x float]* @a, i64 0, i64 %indvars.iv.2
+  %9 = load float* %arrayidx7.us.2, align 4, !tbaa !5
+  %add8.us.2 = fadd float %9, %8
+  store float %add8.us.2, float* %arrayidx7.us.2, align 4, !tbaa !5
+  %indvars.iv.next.2 = add i64 %indvars.iv.2, %1
+  %10 = trunc i64 %indvars.iv.next.2 to i32
+  %cmp3.us.2 = icmp slt i32 %10, 32000
+  br i1 %cmp3.us.2, label %for.body4.us.2, label %for.body4.lr.ph.us.3
+
+for.body4.lr.ph.us.3:                             ; preds = %for.body4.us.2
+  %call10.us.2 = tail call i32 @dummy(float* getelementptr inbounds ([32000 x float]* @a, i64 0, i64 0), float* getelementptr inbounds ([32000 x float]* @b, i64 0, i64 0), float* getelementptr inbounds ([32000 x float]* @c, i64 0, i64 0), float* getelementptr inbounds ([32000 x float]* @d, i64 0, i64 0), float* getelementptr inbounds ([32000 x float]* @e, i64 0, i64 0), [256 x float]* getelementptr inbounds ([256 x [256 x float]]* @aa, i64 0, i64 0), [256 x float]* getelementptr inbounds ([256 x [256 x float]]* @bb, i64 0, i64 0), [256 x float]* getelementptr inbounds ([256 x [256 x float]]* @cc, i64 0, i64 0), float 0.000000e+00) nounwind
+  br label %for.body4.us.3
+
+for.body4.us.3:                                   ; preds = %for.body4.us.3, %for.body4.lr.ph.us.3
+  %indvars.iv20.3 = phi i64 [ 0, %for.body4.lr.ph.us.3 ], [ %indvars.iv.next21.3, %for.body4.us.3 ]
+  %indvars.iv.3 = phi i64 [ %0, %for.body4.lr.ph.us.3 ], [ %indvars.iv.next.3, %for.body4.us.3 ]
+  %indvars.iv.next21.3 = add i64 %indvars.iv20.3, 1
+  %sub5.us.3 = sub i64 31999, %indvars.iv20.3
+  %sext25 = shl i64 %sub5.us.3, 32
+  %idxprom.us.3 = ashr exact i64 %sext25, 32
+  %arrayidx.us.3 = getelementptr inbounds [32000 x float]* @b, i64 0, i64 %idxprom.us.3
+  %11 = load float* %arrayidx.us.3, align 4, !tbaa !5
+  %arrayidx7.us.3 = getelementptr inbounds [32000 x float]* @a, i64 0, i64 %indvars.iv.3
+  %12 = load float* %arrayidx7.us.3, align 4, !tbaa !5
+  %add8.us.3 = fadd float %12, %11
+  store float %add8.us.3, float* %arrayidx7.us.3, align 4, !tbaa !5
+  %indvars.iv.next.3 = add i64 %indvars.iv.3, %1
+  %13 = trunc i64 %indvars.iv.next.3 to i32
+  %cmp3.us.3 = icmp slt i32 %13, 32000
+  br i1 %cmp3.us.3, label %for.body4.us.3, label %for.body4.lr.ph.us.4
+
+for.body4.lr.ph.us.4:                             ; preds = %for.body4.us.3
+  %call10.us.3 = tail call i32 @dummy(float* getelementptr inbounds ([32000 x float]* @a, i64 0, i64 0), float* getelementptr inbounds ([32000 x float]* @b, i64 0, i64 0), float* getelementptr inbounds ([32000 x float]* @c, i64 0, i64 0), float* getelementptr inbounds ([32000 x float]* @d, i64 0, i64 0), float* getelementptr inbounds ([32000 x float]* @e, i64 0, i64 0), [256 x float]* getelementptr inbounds ([256 x [256 x float]]* @aa, i64 0, i64 0), [256 x float]* getelementptr inbounds ([256 x [256 x float]]* @bb, i64 0, i64 0), [256 x float]* getelementptr inbounds ([256 x [256 x float]]* @cc, i64 0, i64 0), float 0.000000e+00) nounwind
+  br label %for.body4.us.4
+
+for.body4.us.4:                                   ; preds = %for.body4.us.4, %for.body4.lr.ph.us.4
+  %indvars.iv20.4 = phi i64 [ 0, %for.body4.lr.ph.us.4 ], [ %indvars.iv.next21.4, %for.body4.us.4 ]
+  %indvars.iv.4 = phi i64 [ %0, %for.body4.lr.ph.us.4 ], [ %indvars.iv.next.4, %for.body4.us.4 ]
+  %indvars.iv.next21.4 = add i64 %indvars.iv20.4, 1
+  %sub5.us.4 = sub i64 31999, %indvars.iv20.4
+  %sext26 = shl i64 %sub5.us.4, 32
+  %idxprom.us.4 = ashr exact i64 %sext26, 32
+  %arrayidx.us.4 = getelementptr inbounds [32000 x float]* @b, i64 0, i64 %idxprom.us.4
+  %14 = load float* %arrayidx.us.4, align 4, !tbaa !5
+  %arrayidx7.us.4 = getelementptr inbounds [32000 x float]* @a, i64 0, i64 %indvars.iv.4
+  %15 = load float* %arrayidx7.us.4, align 4, !tbaa !5
+  %add8.us.4 = fadd float %15, %14
+  store float %add8.us.4, float* %arrayidx7.us.4, align 4, !tbaa !5
+  %indvars.iv.next.4 = add i64 %indvars.iv.4, %1
+  %16 = trunc i64 %indvars.iv.next.4 to i32
+  %cmp3.us.4 = icmp slt i32 %16, 32000
+  br i1 %cmp3.us.4, label %for.body4.us.4, label %for.end.us.4
+
+for.end.us.4:                                     ; preds = %for.body4.us.4
+  %call10.us.4 = tail call i32 @dummy(float* getelementptr inbounds ([32000 x float]* @a, i64 0, i64 0), float* getelementptr inbounds ([32000 x float]* @b, i64 0, i64 0), float* getelementptr inbounds ([32000 x float]* @c, i64 0, i64 0), float* getelementptr inbounds ([32000 x float]* @d, i64 0, i64 0), float* getelementptr inbounds ([32000 x float]* @e, i64 0, i64 0), [256 x float]* getelementptr inbounds ([256 x [256 x float]]* @aa, i64 0, i64 0), [256 x float]* getelementptr inbounds ([256 x [256 x float]]* @bb, i64 0, i64 0), [256 x float]* getelementptr inbounds ([256 x [256 x float]]* @cc, i64 0, i64 0), float 0.000000e+00) nounwind
+  %inc.us.4 = add nsw i32 %nl.019.us, 5
+  %exitcond.4 = icmp eq i32 %inc.us.4, 200000
+  br i1 %exitcond.4, label %for.end12, label %for.body4.lr.ph.us
+
+for.end.7:                                        ; preds = %entry, %for.end.7
+  %nl.019 = phi i32 [ %inc.7, %for.end.7 ], [ 0, %entry ]
+  %call10 = tail call i32 @dummy(float* getelementptr inbounds ([32000 x float]* @a, i64 0, i64 0), float* getelementptr inbounds ([32000 x float]* @b, i64 0, i64 0), float* getelementptr inbounds ([32000 x float]* @c, i64 0, i64 0), float* getelementptr inbounds ([32000 x float]* @d, i64 0, i64 0), float* getelementptr inbounds ([32000 x float]* @e, i64 0, i64 0), [256 x float]* getelementptr inbounds ([256 x [256 x float]]* @aa, i64 0, i64 0), [256 x float]* getelementptr inbounds ([256 x [256 x float]]* @bb, i64 0, i64 0), [256 x float]* getelementptr inbounds ([256 x [256 x float]]* @cc, i64 0, i64 0), float 0.000000e+00) nounwind
+  %call10.1 = tail call i32 @dummy(float* getelementptr inbounds ([32000 x float]* @a, i64 0, i64 0), float* getelementptr inbounds ([32000 x float]* @b, i64 0, i64 0), float* getelementptr inbounds ([32000 x float]* @c, i64 0, i64 0), float* getelementptr inbounds ([32000 x float]* @d, i64 0, i64 0), float* getelementptr inbounds ([32000 x float]* @e, i64 0, i64 0), [256 x float]* getelementptr inbounds ([256 x [256 x float]]* @aa, i64 0, i64 0), [256 x float]* getelementptr inbounds ([256 x [256 x float]]* @bb, i64 0, i64 0), [256 x float]* getelementptr inbounds ([256 x [256 x float]]* @cc, i64 0, i64 0), float 0.000000e+00) nounwind
+  %call10.2 = tail call i32 @dummy(float* getelementptr inbounds ([32000 x float]* @a, i64 0, i64 0), float* getelementptr inbounds ([32000 x float]* @b, i64 0, i64 0), float* getelementptr inbounds ([32000 x float]* @c, i64 0, i64 0), float* getelementptr inbounds ([32000 x float]* @d, i64 0, i64 0), float* getelementptr inbounds ([32000 x float]* @e, i64 0, i64 0), [256 x float]* getelementptr inbounds ([256 x [256 x float]]* @aa, i64 0, i64 0), [256 x float]* getelementptr inbounds ([256 x [256 x float]]* @bb, i64 0, i64 0), [256 x float]* getelementptr inbounds ([256 x [256 x float]]* @cc, i64 0, i64 0), float 0.000000e+00) nounwind
+  %call10.3 = tail call i32 @dummy(float* getelementptr inbounds ([32000 x float]* @a, i64 0, i64 0), float* getelementptr inbounds ([32000 x float]* @b, i64 0, i64 0), float* getelementptr inbounds ([32000 x float]* @c, i64 0, i64 0), float* getelementptr inbounds ([32000 x float]* @d, i64 0, i64 0), float* getelementptr inbounds ([32000 x float]* @e, i64 0, i64 0), [256 x float]* getelementptr inbounds ([256 x [256 x float]]* @aa, i64 0, i64 0), [256 x float]* getelementptr inbounds ([256 x [256 x float]]* @bb, i64 0, i64 0), [256 x float]* getelementptr inbounds ([256 x [256 x float]]* @cc, i64 0, i64 0), float 0.000000e+00) nounwind
+  %call10.4 = tail call i32 @dummy(float* getelementptr inbounds ([32000 x float]* @a, i64 0, i64 0), float* getelementptr inbounds ([32000 x float]* @b, i64 0, i64 0), float* getelementptr inbounds ([32000 x float]* @c, i64 0, i64 0), float* getelementptr inbounds ([32000 x float]* @d, i64 0, i64 0), float* getelementptr inbounds ([32000 x float]* @e, i64 0, i64 0), [256 x float]* getelementptr inbounds ([256 x [256 x float]]* @aa, i64 0, i64 0), [256 x float]* getelementptr inbounds ([256 x [256 x float]]* @bb, i64 0, i64 0), [256 x float]* getelementptr inbounds ([256 x [256 x float]]* @cc, i64 0, i64 0), float 0.000000e+00) nounwind
+  %call10.5 = tail call i32 @dummy(float* getelementptr inbounds ([32000 x float]* @a, i64 0, i64 0), float* getelementptr inbounds ([32000 x float]* @b, i64 0, i64 0), float* getelementptr inbounds ([32000 x float]* @c, i64 0, i64 0), float* getelementptr inbounds ([32000 x float]* @d, i64 0, i64 0), float* getelementptr inbounds ([32000 x float]* @e, i64 0, i64 0), [256 x float]* getelementptr inbounds ([256 x [256 x float]]* @aa, i64 0, i64 0), [256 x float]* getelementptr inbounds ([256 x [256 x float]]* @bb, i64 0, i64 0), [256 x float]* getelementptr inbounds ([256 x [256 x float]]* @cc, i64 0, i64 0), float 0.000000e+00) nounwind
+  %call10.6 = tail call i32 @dummy(float* getelementptr inbounds ([32000 x float]* @a, i64 0, i64 0), float* getelementptr inbounds ([32000 x float]* @b, i64 0, i64 0), float* getelementptr inbounds ([32000 x float]* @c, i64 0, i64 0), float* getelementptr inbounds ([32000 x float]* @d, i64 0, i64 0), float* getelementptr inbounds ([32000 x float]* @e, i64 0, i64 0), [256 x float]* getelementptr inbounds ([256 x [256 x float]]* @aa, i64 0, i64 0), [256 x float]* getelementptr inbounds ([256 x [256 x float]]* @bb, i64 0, i64 0), [256 x float]* getelementptr inbounds ([256 x [256 x float]]* @cc, i64 0, i64 0), float 0.000000e+00) nounwind
+  %call10.7 = tail call i32 @dummy(float* getelementptr inbounds ([32000 x float]* @a, i64 0, i64 0), float* getelementptr inbounds ([32000 x float]* @b, i64 0, i64 0), float* getelementptr inbounds ([32000 x float]* @c, i64 0, i64 0), float* getelementptr inbounds ([32000 x float]* @d, i64 0, i64 0), float* getelementptr inbounds ([32000 x float]* @e, i64 0, i64 0), [256 x float]* getelementptr inbounds ([256 x [256 x float]]* @aa, i64 0, i64 0), [256 x float]* getelementptr inbounds ([256 x [256 x float]]* @bb, i64 0, i64 0), [256 x float]* getelementptr inbounds ([256 x [256 x float]]* @cc, i64 0, i64 0), float 0.000000e+00) nounwind
+  %inc.7 = add nsw i32 %nl.019, 8
+  %exitcond.7 = icmp eq i32 %inc.7, 200000
+  br i1 %exitcond.7, label %for.end12, label %for.end.7
+}
+
+declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i32, i1) nounwind
+
+declare i32 @puts(i8* nocapture) nounwind
+
+!0 = metadata !{metadata !"any pointer", metadata !1}
+!1 = metadata !{metadata !"omnipotent char", metadata !2}
+!2 = metadata !{metadata !"Simple C/C++ TBAA", null}
+!3 = metadata !{metadata !"branch_weights", i32 64, i32 4}
+!4 = metadata !{metadata !"int", metadata !1}
+!5 = metadata !{metadata !"float", metadata !1}