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Diffstat (limited to 'test/Transforms/MemCpyOpt/memcpy.ll')
| -rw-r--r-- | test/Transforms/MemCpyOpt/memcpy.ll | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/test/Transforms/MemCpyOpt/memcpy.ll b/test/Transforms/MemCpyOpt/memcpy.ll index b387d32a7d..5c6a94ce5c 100644 --- a/test/Transforms/MemCpyOpt/memcpy.ll +++ b/test/Transforms/MemCpyOpt/memcpy.ll @@ -109,3 +109,23 @@ define void @test6(i8 *%P) { ; CHECK-NEXT: ret void } + +; PR9794 - Should forward memcpy into byval argument even though the memcpy +; isn't itself 8 byte aligned. +%struct.p = type { i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32 } + +define i32 @test7(%struct.p* nocapture byval align 8 %q) nounwind ssp { +entry: + %agg.tmp = alloca %struct.p, align 4 + %tmp = bitcast %struct.p* %agg.tmp to i8* + %tmp1 = bitcast %struct.p* %q to i8* + call void @llvm.memcpy.p0i8.p0i8.i64(i8* %tmp, i8* %tmp1, i64 48, i32 4, i1 false) + %call = call i32 @g(%struct.p* byval align 8 %agg.tmp) nounwind + ret i32 %call +; CHECK: @test7 +; CHECK: call i32 @g(%struct.p* byval align 8 %q) nounwind +} + +declare i32 @g(%struct.p* byval align 8) + + |