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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-07-18 18:47:13 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-07-18 18:47:13 +0000 |
| commit | c45d38e14a4a101ce036a6c74828a9e10bd98a5a (patch) | |
| tree | b3068a459f470fe068f498cf41a93499326139fa /llvm/test/CodeGen/ARM/crash-greedy-v6.ll | |
| parent | 494c549ebd7e194df0a4df542e85253e2c824d32 (diff) | |
| download | bcm5719-llvm-c45d38e14a4a101ce036a6c74828a9e10bd98a5a.tar.gz bcm5719-llvm-c45d38e14a4a101ce036a6c74828a9e10bd98a5a.zip | |
Fix a crash when building 177.mesa for armv6.
When splitting a live range immediately before an LDR_POST instruction
that redefines the address register, make sure to use the correct value
number in leaveIntvBefore.
We need the value number entering the instruction.
<rdar://problem/9793765>
llvm-svn: 135413
Diffstat (limited to 'llvm/test/CodeGen/ARM/crash-greedy-v6.ll')
| -rw-r--r-- | llvm/test/CodeGen/ARM/crash-greedy-v6.ll | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/ARM/crash-greedy-v6.ll b/llvm/test/CodeGen/ARM/crash-greedy-v6.ll new file mode 100644 index 00000000000..fd42254767d --- /dev/null +++ b/llvm/test/CodeGen/ARM/crash-greedy-v6.ll @@ -0,0 +1,32 @@ +; RUN: llc -disable-fp-elim -relocation-model=pic < %s +target triple = "armv6-apple-ios" + +; Reduced from 177.mesa. This test causes a live range split before an LDR_POST instruction. +; That requires leaveIntvBefore to be very accurate about the redefined value number. +define internal void @sample_nearest_3d(i8* nocapture %tObj, i32 %n, float* nocapture %s, float* nocapture %t, float* nocapture %u, float* nocapture %lambda, i8* nocapture %red, i8* nocapture %green, i8* nocapture %blue, i8* nocapture %alpha) nounwind ssp { +entry: + br i1 undef, label %for.end, label %for.body.lr.ph + +for.body.lr.ph: ; preds = %entry + br label %for.body + +for.body: ; preds = %for.body, %for.body.lr.ph + %i.031 = phi i32 [ 0, %for.body.lr.ph ], [ %0, %for.body ] + %arrayidx11 = getelementptr float* %t, i32 %i.031 + %arrayidx15 = getelementptr float* %u, i32 %i.031 + %arrayidx19 = getelementptr i8* %red, i32 %i.031 + %arrayidx22 = getelementptr i8* %green, i32 %i.031 + %arrayidx25 = getelementptr i8* %blue, i32 %i.031 + %arrayidx28 = getelementptr i8* %alpha, i32 %i.031 + %tmp12 = load float* %arrayidx11, align 4 + tail call fastcc void @sample_3d_nearest(i8* %tObj, i8* undef, float undef, float %tmp12, float undef, i8* %arrayidx19, i8* %arrayidx22, i8* %arrayidx25, i8* %arrayidx28) + %0 = add i32 %i.031, 1 + %exitcond = icmp eq i32 %0, %n + br i1 %exitcond, label %for.end, label %for.body + +for.end: ; preds = %for.body, %entry + ret void +} + +declare fastcc void @sample_3d_nearest(i8* nocapture, i8* nocapture, float, float, float, i8* nocapture, i8* nocapture, i8* nocapture, i8* nocapture) nounwind ssp + |
