Mercurial > hg > Members > tobaru > cbc > CbC_llvm
view test/CodeGen/X86/negative-stride-fptosi-user.ll @ 33:e4204d083e25
LLVM 3.5
author | Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp> |
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date | Thu, 12 Dec 2013 14:32:10 +0900 |
parents | 95c75e76d11b |
children | 803732b1fca8 |
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; RUN: llc < %s -march=x86-64 | grep cvtsi2sd ; LSR previously eliminated the sitofp by introducing an induction ; variable which stepped by a bogus ((double)UINT32_C(-1)). It's theoretically ; possible to eliminate the sitofp using a proper -1.0 step though; this ; test should be changed if that is done. define void @foo(i32 %N) nounwind { entry: %0 = icmp slt i32 %N, 0 ; <i1> [#uses=1] br i1 %0, label %bb, label %return bb: ; preds = %bb, %entry %i.03 = phi i32 [ 0, %entry ], [ %2, %bb ] ; <i32> [#uses=2] %1 = sitofp i32 %i.03 to double ; <double> [#uses=1] tail call void @bar(double %1) nounwind %2 = add nsw i32 %i.03, -1 ; <i32> [#uses=2] %exitcond = icmp eq i32 %2, %N ; <i1> [#uses=1] br i1 %exitcond, label %return, label %bb return: ; preds = %bb, %entry ret void } declare void @bar(double)