diff test/CodeGen/PowerPC/ifcvt.ll @ 0:95c75e76d11b LLVM3.4

LLVM 3.4
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Thu, 12 Dec 2013 13:56:28 +0900
parents
children 803732b1fca8
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/CodeGen/PowerPC/ifcvt.ll	Thu Dec 12 13:56:28 2013 +0900
@@ -0,0 +1,34 @@
+; RUN: llc < %s -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 -verify-machineinstrs | FileCheck %s
+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-f128:128:128-v128:128:128-n32:64"
+target triple = "powerpc64-unknown-linux-gnu"
+
+define i32 @test(i32 %a, i32 %b, i32 %c, i32 %d) {
+entry:
+  %sext82 = shl i32 %d, 16
+  %conv29 = ashr exact i32 %sext82, 16
+  %cmp = icmp slt i32 %sext82, 0
+  br i1 %cmp, label %cond.true, label %cond.false
+
+cond.true:                                        ; preds = %sw.epilog
+  %and33 = and i32 %conv29, 32767
+  %sub34 = sub nsw i32 %a, %and33
+  br label %cond.end
+
+cond.false:                                       ; preds = %sw.epilog
+  %add37 = add nsw i32 %conv29, %a
+  br label %cond.end
+
+; CHECK: @test
+; CHECK: add [[REG:[0-9]+]], 
+; CHECK: subf [[REG2:[0-9]+]],
+; CHECK: isel {{[0-9]+}}, [[REG]], [[REG2]],
+
+cond.end:                                         ; preds = %cond.false, %cond.true
+  %cond = phi i32 [ %sub34, %cond.true ], [ %add37, %cond.false ]
+  %sext83 = shl i32 %cond, 16
+  %conv39 = ashr exact i32 %sext83, 16
+  %add41 = sub i32 %b, %a
+  %sub43 = add i32 %add41, %conv39
+  ret i32 %sub43
+}
+