Mercurial > hg > Members > tobaru > cbc > CbC_llvm
view test/CodeGen/X86/optimize-max-2.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 | afa8332a0e37 |
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; RUN: llc < %s -march=x86-64 | grep cmov | count 2 ; RUN: llc < %s -march=x86-64 | FileCheck %s ; CHECK: jne ; CHECK-NOT: jne ; LSR's OptimizeMax function shouldn't try to eliminate this max, because ; it has three operands. 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" define void @foo(double* nocapture %p, i64 %x, i64 %y) nounwind { entry: %tmp = icmp eq i64 %y, 0 ; <i1> [#uses=1] %umax = select i1 %tmp, i64 1, i64 %y ; <i64> [#uses=2] %tmp8 = icmp ugt i64 %umax, %x ; <i1> [#uses=1] %umax9 = select i1 %tmp8, i64 %umax, i64 %x ; <i64> [#uses=1] br label %bb4 bb4: ; preds = %bb4, %entry %i.07 = phi i64 [ 0, %entry ], [ %2, %bb4 ] ; <i64> [#uses=2] %scevgep = getelementptr double* %p, i64 %i.07 ; <double*> [#uses=2] %0 = load double* %scevgep, align 8 ; <double> [#uses=1] %1 = fmul double %0, 2.000000e+00 ; <double> [#uses=1] store double %1, double* %scevgep, align 8 %2 = add i64 %i.07, 1 ; <i64> [#uses=2] %exitcond = icmp eq i64 %2, %umax9 ; <i1> [#uses=1] br i1 %exitcond, label %return, label %bb4 return: ; preds = %bb4 ret void }