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| -rw-r--r-- | test/Transforms/IndVarSimplify/2011-09-27-hoistsext.ll | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/test/Transforms/IndVarSimplify/2011-09-27-hoistsext.ll b/test/Transforms/IndVarSimplify/2011-09-27-hoistsext.ll new file mode 100644 index 0000000000..0737489aad --- /dev/null +++ b/test/Transforms/IndVarSimplify/2011-09-27-hoistsext.ll @@ -0,0 +1,28 @@ +; RUN: opt < %s -indvars -S | FileCheck %s +; Test indvars' ability to hoist new sext created by WidenIV. +; From ffbench. + +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-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64" +define internal double @fourn(double* %data, i32 %x, i32 %y, i32 %n) nounwind { +; CHECK: entry: +; CHECK: sext +; CHECK: sext +entry: + br label %for.body + +; CHECK: for.body: +; CHECK-NOT: sext +; CHECK: br +for.body: + %i2.115 = phi i32 [ 0, %entry ], [ %add249, %for.body ] + %add174 = add nsw i32 %i2.115, %x + %idxprom177 = sext i32 %add174 to i64 + %arrayidx179 = getelementptr inbounds double* %data, i64 %idxprom177 + %tmp180 = load double* %arrayidx179, align 8 + %add249 = add nsw i32 %i2.115, %y + %cmp168 = icmp sgt i32 %add249, %n + br i1 %cmp168, label %exit, label %for.body + +exit: + ret double %tmp180 +} |