Revert "Temporarily Revert "Add basic loop fusion pass.""

The reversion apparently deleted the test/Transforms directory.

Will be re-reverting again.

llvm-svn: 358552

1 files changed, 34 insertions, 0 deletions

diff --git a/llvm/test/Transforms/InstCombine/apint-shift-simplify.ll b/llvm/test/Transforms/InstCombine/apint-shift-simplify.ll
new file mode 100644
index 00000000000..63703ba112a
--- /dev/null
+++ b/llvm/test/Transforms/InstCombine/apint-shift-simplify.ll
@@ -0,0 +1,34 @@
+; RUN: opt < %s -instcombine -S | FileCheck %s
+
+define i41 @test0(i41 %A, i41 %B, i41 %C) {
+	%X = shl i41 %A, %C
+	%Y = shl i41 %B, %C
+	%Z = and i41 %X, %Y
+	ret i41 %Z
+; CHECK-LABEL: @test0(
+; CHECK-NEXT: and i41 %A, %B
+; CHECK-NEXT: shl i41
+; CHECK-NEXT: ret
+}
+
+define i57 @test1(i57 %A, i57 %B, i57 %C) {
+	%X = lshr i57 %A, %C
+	%Y = lshr i57 %B, %C
+	%Z = or i57 %X, %Y
+	ret i57 %Z
+; CHECK-LABEL: @test1(
+; CHECK-NEXT: or i57 %A, %B
+; CHECK-NEXT: lshr i57
+; CHECK-NEXT: ret
+}
+
+define i49 @test2(i49 %A, i49 %B, i49 %C) {
+	%X = ashr i49 %A, %C
+	%Y = ashr i49 %B, %C
+	%Z = xor i49 %X, %Y
+	ret i49 %Z
+; CHECK-LABEL: @test2(
+; CHECK-NEXT: xor i49 %A, %B
+; CHECK-NEXT: ashr i49
+; CHECK-NEXT: ret
+}