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6ff1c3f36c
Measurements show that it does not speed up coalescing, so there is no reason the keep the added complexity around. Also clean out some unused methods and static functions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106548 91177308-0d34-0410-b5e6-96231b3b80d8
40 lines
1.7 KiB
LLVM
40 lines
1.7 KiB
LLVM
; RUN: llc < %s -march=x86 -mtriple=i686-apple-darwin9.4.0 | grep movl | count 5
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; RUN: llc < %s -march=x86 -mtriple=i686-apple-darwin9.4.0 | FileCheck %s
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; PR2659
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target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
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target triple = "i686-apple-darwin9.4.0"
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define i32 @binomial(i32 %n, i32 %k) nounwind {
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entry:
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%cmp = icmp ugt i32 %k, %n ; <i1> [#uses=1]
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br i1 %cmp, label %ifthen, label %forcond.preheader
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forcond.preheader: ; preds = %entry
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%cmp44 = icmp eq i32 %k, 0 ; <i1> [#uses=1]
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br i1 %cmp44, label %afterfor, label %forbody
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; CHECK: %forcond.preheader.forbody_crit_edge
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; CHECK: movl $1
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; CHECK-NOT: xorl
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; CHECK-NEXT: movl
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ifthen: ; preds = %entry
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ret i32 0
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forbody: ; preds = %forbody, %forcond.preheader
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%indvar = phi i32 [ 0, %forcond.preheader ], [ %divisor.02, %forbody ] ; <i32> [#uses=3]
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%accumulator.01 = phi i32 [ 1, %forcond.preheader ], [ %div, %forbody ] ; <i32> [#uses=1]
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%divisor.02 = add i32 %indvar, 1 ; <i32> [#uses=2]
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%n.addr.03 = sub i32 %n, %indvar ; <i32> [#uses=1]
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%mul = mul i32 %n.addr.03, %accumulator.01 ; <i32> [#uses=1]
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%div = udiv i32 %mul, %divisor.02 ; <i32> [#uses=2]
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%inc = add i32 %indvar, 2 ; <i32> [#uses=1]
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%cmp4 = icmp ugt i32 %inc, %k ; <i1> [#uses=1]
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br i1 %cmp4, label %afterfor, label %forbody
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afterfor: ; preds = %forbody, %forcond.preheader
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%accumulator.0.lcssa = phi i32 [ 1, %forcond.preheader ], [ %div, %forbody ] ; <i32> [#uses=1]
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ret i32 %accumulator.0.lcssa
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}
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