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authorJan Wen Voung <jvoung@google.com>2013-03-12 16:27:52 +0000
committerJan Wen Voung <jvoung@google.com>2013-03-12 16:27:52 +0000
commit4323665bd857c0527b50463d415d9e76493ad2fe (patch)
tree041705048758b7962b7ec89eadc50e76513393c8 /test/CodeGen/X86/phi-immediate-factoring.ll
parenta15e708b1b05cfb9d3d126e12f508e37adc25fdb (diff)
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Revert the test moves from 176733. Use "REQUIRES: asserts" instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176873 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/X86/phi-immediate-factoring.ll')
-rw-r--r--test/CodeGen/X86/phi-immediate-factoring.ll55
1 files changed, 55 insertions, 0 deletions
diff --git a/test/CodeGen/X86/phi-immediate-factoring.ll b/test/CodeGen/X86/phi-immediate-factoring.ll
new file mode 100644
index 0000000000..6425ef0e83
--- /dev/null
+++ b/test/CodeGen/X86/phi-immediate-factoring.ll
@@ -0,0 +1,55 @@
+; REQUIRES: asserts
+; RUN: llc < %s -march=x86 -stats 2>&1 | grep "Number of blocks eliminated" | grep 6
+; PR1296
+
+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"
+target triple = "i686-apple-darwin8"
+
+define i32 @foo(i32 %A, i32 %B, i32 %C) nounwind {
+entry:
+ switch i32 %A, label %out [
+ i32 1, label %bb
+ i32 0, label %bb13
+ i32 2, label %bb35
+ ]
+
+bb: ; preds = %cond_next, %entry
+ %i.144.1 = phi i32 [ 0, %entry ], [ %tmp7, %cond_next ] ; <i32> [#uses=2]
+ %tmp4 = and i32 %i.144.1, %B ; <i32> [#uses=1]
+ icmp eq i32 %tmp4, 0 ; <i1>:0 [#uses=1]
+ br i1 %0, label %cond_next, label %out
+
+cond_next: ; preds = %bb
+ %tmp7 = add i32 %i.144.1, 1 ; <i32> [#uses=2]
+ icmp slt i32 %tmp7, 1000 ; <i1>:1 [#uses=1]
+ br i1 %1, label %bb, label %out
+
+bb13: ; preds = %cond_next18, %entry
+ %i.248.1 = phi i32 [ 0, %entry ], [ %tmp20, %cond_next18 ] ; <i32> [#uses=2]
+ %tmp16 = and i32 %i.248.1, %C ; <i32> [#uses=1]
+ icmp eq i32 %tmp16, 0 ; <i1>:2 [#uses=1]
+ br i1 %2, label %cond_next18, label %out
+
+cond_next18: ; preds = %bb13
+ %tmp20 = add i32 %i.248.1, 1 ; <i32> [#uses=2]
+ icmp slt i32 %tmp20, 1000 ; <i1>:3 [#uses=1]
+ br i1 %3, label %bb13, label %out
+
+bb27: ; preds = %bb35
+ %tmp30 = and i32 %i.3, %C ; <i32> [#uses=1]
+ icmp eq i32 %tmp30, 0 ; <i1>:4 [#uses=1]
+ br i1 %4, label %cond_next32, label %out
+
+cond_next32: ; preds = %bb27
+ %indvar.next = add i32 %i.3, 1 ; <i32> [#uses=1]
+ br label %bb35
+
+bb35: ; preds = %entry, %cond_next32
+ %i.3 = phi i32 [ %indvar.next, %cond_next32 ], [ 0, %entry ] ; <i32> [#uses=3]
+ icmp slt i32 %i.3, 1000 ; <i1>:5 [#uses=1]
+ br i1 %5, label %bb27, label %out
+
+out: ; preds = %bb27, %bb35, %bb13, %cond_next18, %bb, %cond_next, %entry
+ %result.0 = phi i32 [ 0, %entry ], [ 1, %bb ], [ 0, %cond_next ], [ 1, %bb13 ], [ 0, %cond_next18 ], [ 1, %bb27 ], [ 0, %bb35 ] ; <i32> [#uses=1]
+ ret i32 %result.0
+}