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Diffstat (limited to 'test/Transforms/LoopStrengthReduce/nonintegral.ll')
-rw-r--r-- | test/Transforms/LoopStrengthReduce/nonintegral.ll | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/test/Transforms/LoopStrengthReduce/nonintegral.ll b/test/Transforms/LoopStrengthReduce/nonintegral.ll new file mode 100644 index 000000000000..5648e3aa74af --- /dev/null +++ b/test/Transforms/LoopStrengthReduce/nonintegral.ll @@ -0,0 +1,45 @@ +; RUN: opt -S -loop-reduce < %s | FileCheck %s + +; Address Space 10 is non-integral. The optimizer is not allowed to use +; ptrtoint/inttoptr instructions. Make sure that this doesn't happen +target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128-ni:10:11:12" +target triple = "x86_64-unknown-linux-gnu" + +define void @japi1__unsafe_getindex_65028(i64 addrspace(10)* %arg) { +; CHECK-NOT: inttoptr +; CHECK-NOT: ptrtoint +; How exactly SCEV chooses to materialize isn't all that important, as +; long as it doesn't try to round-trip through integers. As of this writing, +; it emits a byte-wise gep, which is fine. +; CHECK: getelementptr i64, i64 addrspace(10)* {{.*}}, i64 {{.*}} +top: + br label %L86 + +L86: ; preds = %L86, %top + %i.0 = phi i64 [ 0, %top ], [ %tmp, %L86 ] + %tmp = add i64 %i.0, 1 + br i1 undef, label %L86, label %if29 + +if29: ; preds = %L86 + %tmp1 = shl i64 %tmp, 1 + %tmp2 = add i64 %tmp1, -2 + br label %if31 + +if31: ; preds = %if38, %if29 + %"#temp#1.sroa.0.022" = phi i64 [ 0, %if29 ], [ %tmp3, %if38 ] + br label %L119 + +L119: ; preds = %L119, %if31 + %i5.0 = phi i64 [ %"#temp#1.sroa.0.022", %if31 ], [ %tmp3, %L119 ] + %tmp3 = add i64 %i5.0, 1 + br i1 undef, label %L119, label %if38 + +if38: ; preds = %L119 + %tmp4 = add i64 %tmp2, %i5.0 + %tmp5 = getelementptr i64, i64 addrspace(10)* %arg, i64 %tmp4 + %tmp6 = load i64, i64 addrspace(10)* %tmp5 + br i1 undef, label %done, label %if31 + +done: ; preds = %if38 + ret void +} |