diff options
Diffstat (limited to 'test/CodeGen/PowerPC/merge_stores_dereferenceable.ll')
| -rw-r--r-- | test/CodeGen/PowerPC/merge_stores_dereferenceable.ll | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/test/CodeGen/PowerPC/merge_stores_dereferenceable.ll b/test/CodeGen/PowerPC/merge_stores_dereferenceable.ll new file mode 100644 index 000000000000..29aee7a3825f --- /dev/null +++ b/test/CodeGen/PowerPC/merge_stores_dereferenceable.ll @@ -0,0 +1,24 @@ +; RUN: llc -verify-machineinstrs -mcpu=pwr8 -mtriple=powerpc64le-unknown-linux-gnu < %s | FileCheck %s + +; This code causes an assertion failure if dereferenceable flag is not properly set when in merging consecutive stores +; CHECK-LABEL: func: +; CHECK: lxvd2x [[REG1:[0-9]+]], {{[0-9]+}}, {{[0-9]+}} +; CHECK-NOT: lxvd2x +; CHECK: stxvd2x [[REG1:[0-9]+]], {{[0-9]+}}, {{[0-9]+}} + +define <2 x i64> @func(i64* %pdst) { +entry: + %a = alloca [4 x i64], align 8 + %psrc0 = bitcast [4 x i64]* %a to i64* + %psrc1 = getelementptr inbounds i64, i64* %psrc0, i64 1 + %d0 = load i64, i64* %psrc0 + %d1 = load i64, i64* %psrc1 + %pdst0 = getelementptr inbounds i64, i64* %pdst, i64 0 + %pdst1 = getelementptr inbounds i64, i64* %pdst, i64 1 + store i64 %d0, i64* %pdst0, align 8 + store i64 %d1, i64* %pdst1, align 8 + %psrcd = bitcast [4 x i64]* %a to <2 x i64>* + %vec = load <2 x i64>, <2 x i64>* %psrcd + ret <2 x i64> %vec +} + |