[llvm-commits] [llvm] r62006 - /llvm/trunk/test/CodeGen/X86/phys_subreg_coalesce-2.ll
Evan Cheng
evan.cheng at apple.com
Fri Jan 9 13:01:31 PST 2009
Author: evancheng
Date: Fri Jan 9 15:01:31 2009
New Revision: 62006
URL: http://llvm.org/viewvc/llvm-project?rev=62006&view=rev
Log:
Add test case from PR2659.
Added:
llvm/trunk/test/CodeGen/X86/phys_subreg_coalesce-2.ll
Added: llvm/trunk/test/CodeGen/X86/phys_subreg_coalesce-2.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/phys_subreg_coalesce-2.ll?rev=62006&view=auto
==============================================================================
--- llvm/trunk/test/CodeGen/X86/phys_subreg_coalesce-2.ll (added)
+++ llvm/trunk/test/CodeGen/X86/phys_subreg_coalesce-2.ll Fri Jan 9 15:01:31 2009
@@ -0,0 +1,30 @@
+; RUN: llvm-as < %s | llc -march=x86 | grep mov | count 5
+; PR2659
+
+define i32 @binomial(i32 %n, i32 %k) nounwind {
+entry:
+ %cmp = icmp ugt i32 %k, %n ; <i1> [#uses=1]
+ br i1 %cmp, label %ifthen, label %forcond.preheader
+
+forcond.preheader: ; preds = %entry
+ %cmp44 = icmp eq i32 %k, 0 ; <i1> [#uses=1]
+ br i1 %cmp44, label %afterfor, label %forbody
+
+ifthen: ; preds = %entry
+ ret i32 0
+
+forbody: ; preds = %forbody, %forcond.preheader
+ %indvar = phi i32 [ 0, %forcond.preheader ], [ %divisor.02, %forbody ] ; <i32> [#uses=3]
+ %accumulator.01 = phi i32 [ 1, %forcond.preheader ], [ %div, %forbody ] ; <i32> [#uses=1]
+ %divisor.02 = add i32 %indvar, 1 ; <i32> [#uses=2]
+ %n.addr.03 = sub i32 %n, %indvar ; <i32> [#uses=1]
+ %mul = mul i32 %n.addr.03, %accumulator.01 ; <i32> [#uses=1]
+ %div = udiv i32 %mul, %divisor.02 ; <i32> [#uses=2]
+ %inc = add i32 %indvar, 2 ; <i32> [#uses=1]
+ %cmp4 = icmp ugt i32 %inc, %k ; <i1> [#uses=1]
+ br i1 %cmp4, label %afterfor, label %forbody
+
+afterfor: ; preds = %forbody, %forcond.preheader
+ %accumulator.0.lcssa = phi i32 [ 1, %forcond.preheader ], [ %div, %forbody ] ; <i32> [#uses=1]
+ ret i32 %accumulator.0.lcssa
+}
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