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authorDimitry Andric <dim@FreeBSD.org>2015-12-30 11:46:15 +0000
committerDimitry Andric <dim@FreeBSD.org>2015-12-30 11:46:15 +0000
commitdd58ef019b700900793a1eb48b52123db01b654e (patch)
treefcfbb4df56a744f4ddc6122c50521dd3f1c5e196 /test/Transforms/NaryReassociate/pr24301.ll
parent2fe5752e3a7c345cdb59e869278d36af33c13fa4 (diff)
downloadsrc-dd58ef019b700900793a1eb48b52123db01b654e.tar.gz
src-dd58ef019b700900793a1eb48b52123db01b654e.zip
Vendor import of llvm trunk r256633:
Notes
Notes: svn path=/vendor/llvm/dist/; revision=292915
Diffstat (limited to 'test/Transforms/NaryReassociate/pr24301.ll')
-rw-r--r--test/Transforms/NaryReassociate/pr24301.ll14
1 files changed, 14 insertions, 0 deletions
diff --git a/test/Transforms/NaryReassociate/pr24301.ll b/test/Transforms/NaryReassociate/pr24301.ll
new file mode 100644
index 000000000000..898707831f95
--- /dev/null
+++ b/test/Transforms/NaryReassociate/pr24301.ll
@@ -0,0 +1,14 @@
+; RUN: opt < %s -nary-reassociate -S | FileCheck %s
+
+define i32 @foo(i32 %tmp4) {
+; CHECK-LABEL: @foo(
+entry:
+ %tmp5 = add i32 %tmp4, 8
+ %tmp13 = add i32 %tmp4, -128 ; deleted
+ %tmp14 = add i32 %tmp13, 8 ; => %tmp5 + -128
+ %tmp21 = add i32 119, %tmp4
+ ; do not rewrite %tmp23 against %tmp13 because %tmp13 is already deleted
+ %tmp23 = add i32 %tmp21, -128
+; CHECK: %tmp23 = add i32 %tmp21, -128
+ ret i32 %tmp23
+}