29 lines
914 B
LLVM
29 lines
914 B
LLVM
; RUN: opt < %s -indvars -S | FileCheck %s
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; Test indvars' ability to hoist new sext created by WidenIV.
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; From ffbench.
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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-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
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define internal double @fourn(double* %data, i32 %x, i32 %y, i32 %n) nounwind {
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; CHECK: entry:
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; CHECK: sext
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; CHECK: sext
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entry:
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br label %for.body
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; CHECK: for.body:
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; CHECK-NOT: sext
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; CHECK: br
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for.body:
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%i2.115 = phi i32 [ 0, %entry ], [ %add249, %for.body ]
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%add174 = add nsw i32 %i2.115, %x
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%idxprom177 = sext i32 %add174 to i64
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%arrayidx179 = getelementptr inbounds double, double* %data, i64 %idxprom177
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%tmp180 = load double, double* %arrayidx179, align 8
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%add249 = add nsw i32 %i2.115, %y
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%cmp168 = icmp sgt i32 %add249, %n
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br i1 %cmp168, label %exit, label %for.body
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exit:
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ret double %tmp180
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}
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