vendor/llvm/llvm-release_34-r197841

1 files changed, 28 insertions, 0 deletions

diff --git a/test/Transforms/ConstantMerge/align.ll b/test/Transforms/ConstantMerge/align.ll
new file mode 100644
index 0000000000000..c1cbcb3c652d2
--- /dev/null
+++ b/test/Transforms/ConstantMerge/align.ll
@@ -0,0 +1,28 @@
+; RUN: opt -constmerge -S < %s | 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-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
+
+
+; Test that with a TD we do merge and mark the alignment as 4
+@T1A = internal unnamed_addr constant i32 1
+@T1B = internal unnamed_addr constant i32 1, align 2
+; CHECK: @T1B = internal unnamed_addr constant i32 1, align 4
+
+define void @test1(i32** %P1, i32** %P2) {
+  store i32* @T1A, i32** %P1
+  store i32* @T1B, i32** %P2
+  ret void
+}
+
+
+; Test that even with a TD we set the alignment to the maximum if both constants
+; have explicit alignments.
+@T2A = internal unnamed_addr constant i32 2, align 1
+@T2B = internal unnamed_addr constant i32 2, align 2
+; CHECK: @T2B = internal unnamed_addr constant i32 2, align 2
+
+define void @test2(i32** %P1, i32** %P2) {
+  store i32* @T2A, i32** %P1
+  store i32* @T2B, i32** %P2
+  ret void
+}