diff --git a/llvm/test/Transforms/GVN/rle-clobbering-store.ll b/llvm/test/Transforms/GVN/rle-clobbering-store.ll new file mode 100644 index 0000000000000..8e00b0c726ad5 --- /dev/null +++ b/llvm/test/Transforms/GVN/rle-clobbering-store.ll @@ -0,0 +1,132 @@ +; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 3 +; RUN: opt < %s -passes=gvn -S | FileCheck %s + +define i1 @test_i1(ptr %a, ptr %b, ptr %c) { +; CHECK-LABEL: define i1 @test_i1( +; CHECK-SAME: ptr [[A:%.*]], ptr [[B:%.*]], ptr [[C:%.*]]) { +; CHECK-NEXT: entry: +; CHECK-NEXT: [[TMP0:%.*]] = load i1, ptr [[A]], align 1 +; CHECK-NEXT: store i1 [[TMP0]], ptr [[B]], align 1 +; CHECK-NEXT: [[TMP1:%.*]] = load i1, ptr [[A]], align 1 +; CHECK-NEXT: ret i1 [[TMP1]] +; +entry: + %0 = load i1, ptr %a, align 1 + store i1 %0, ptr %b, align 1 + %1 = load i1, ptr %a, align 1 + ret i1 %1 +} + +define i8 @test_i8(ptr %a, ptr %b, ptr %c) { +; CHECK-LABEL: define i8 @test_i8( +; CHECK-SAME: ptr [[A:%.*]], ptr [[B:%.*]], ptr [[C:%.*]]) { +; CHECK-NEXT: entry: +; CHECK-NEXT: [[TMP0:%.*]] = load i8, ptr [[A]], align 1 +; CHECK-NEXT: store i8 [[TMP0]], ptr [[B]], align 1 +; CHECK-NEXT: [[TMP1:%.*]] = load i8, ptr [[A]], align 1 +; CHECK-NEXT: ret i8 [[TMP1]] +; +entry: + %0 = load i8, ptr %a, align 1 + store i8 %0, ptr %b, align 1 + %1 = load i8, ptr %a, align 1 + ret i8 %1 +} + +define i32 @test_i32(ptr %a, ptr %b, ptr %c) { +; CHECK-LABEL: define i32 @test_i32( +; CHECK-SAME: ptr [[A:%.*]], ptr [[B:%.*]], ptr [[C:%.*]]) { +; CHECK-NEXT: entry: +; CHECK-NEXT: [[TMP0:%.*]] = load i32, ptr [[A]], align 4 +; CHECK-NEXT: store i32 [[TMP0]], ptr [[B]], align 4 +; CHECK-NEXT: [[TMP1:%.*]] = load i32, ptr [[A]], align 4 +; CHECK-NEXT: ret i32 [[TMP1]] +; +entry: + %0 = load i32, ptr %a, align 4 + store i32 %0, ptr %b, align 4 + %1 = load i32, ptr %a, align 4 + ret i32 %1 +} + +define float @test_float(ptr %a, ptr %b, ptr %c) { +; CHECK-LABEL: define float @test_float( +; CHECK-SAME: ptr [[A:%.*]], ptr [[B:%.*]], ptr [[C:%.*]]) { +; CHECK-NEXT: entry: +; CHECK-NEXT: [[TMP0:%.*]] = load float, ptr [[A]], align 4 +; CHECK-NEXT: store float [[TMP0]], ptr [[B]], align 4 +; CHECK-NEXT: [[TMP1:%.*]] = load float, ptr [[A]], align 4 +; CHECK-NEXT: ret float [[TMP1]] +; +entry: + %0 = load float, ptr %a, align 4 + store float %0, ptr %b, align 4 + %1 = load float, ptr %a, align 4 + ret float %1 +} + +define i32 @test_unaligned_store(ptr %a, ptr %b, ptr %c) { +; CHECK-LABEL: define i32 @test_unaligned_store( +; CHECK-SAME: ptr [[A:%.*]], ptr [[B:%.*]], ptr [[C:%.*]]) { +; CHECK-NEXT: entry: +; CHECK-NEXT: [[TMP0:%.*]] = load i32, ptr [[A]], align 4 +; CHECK-NEXT: store i32 [[TMP0]], ptr [[B]], align 2 +; CHECK-NEXT: [[TMP1:%.*]] = load i32, ptr [[A]], align 4 +; CHECK-NEXT: ret i32 [[TMP1]] +; +entry: + %0 = load i32, ptr %a, align 4 + store i32 %0, ptr %b, align 2 + %1 = load i32, ptr %a, align 4 + ret i32 %1 +} + +define i32 @test_unaligned_loads(ptr %a, ptr %b, ptr %c) { +; CHECK-LABEL: define i32 @test_unaligned_loads( +; CHECK-SAME: ptr [[A:%.*]], ptr [[B:%.*]], ptr [[C:%.*]]) { +; CHECK-NEXT: entry: +; CHECK-NEXT: [[TMP0:%.*]] = load i32, ptr [[A]], align 2 +; CHECK-NEXT: store i32 [[TMP0]], ptr [[B]], align 4 +; CHECK-NEXT: [[TMP1:%.*]] = load i32, ptr [[A]], align 2 +; CHECK-NEXT: ret i32 [[TMP1]] +; +entry: + %0 = load i32, ptr %a, align 2 + store i32 %0, ptr %b, align 4 + %1 = load i32, ptr %a, align 2 + ret i32 %1 +} + +define i8 @test_modify_between(ptr %a, ptr %b, ptr %c) { +; CHECK-LABEL: define i8 @test_modify_between( +; CHECK-SAME: ptr [[A:%.*]], ptr [[B:%.*]], ptr [[C:%.*]]) { +; CHECK-NEXT: entry: +; CHECK-NEXT: [[TMP0:%.*]] = load i8, ptr [[A]], align 1 +; CHECK-NEXT: store i8 42, ptr [[C]], align 1 +; CHECK-NEXT: store i8 [[TMP0]], ptr [[B]], align 1 +; CHECK-NEXT: [[TMP1:%.*]] = load i8, ptr [[A]], align 1 +; CHECK-NEXT: ret i8 [[TMP1]] +; +entry: + %0 = load i8, ptr %a, align 1 + store i8 42, ptr %c, align 1 + store i8 %0, ptr %b, align 1 + %1 = load i8, ptr %a, align 1 + ret i8 %1 +} + +define i32 @test_unordered(ptr %a, ptr %b, ptr %c) { +; CHECK-LABEL: define i32 @test_unordered( +; CHECK-SAME: ptr [[A:%.*]], ptr [[B:%.*]], ptr [[C:%.*]]) { +; CHECK-NEXT: entry: +; CHECK-NEXT: [[TMP0:%.*]] = load i32, ptr [[A]], align 4 +; CHECK-NEXT: store i32 [[TMP0]], ptr [[B]], align 4 +; CHECK-NEXT: [[TMP1:%.*]] = load atomic i32, ptr [[A]] unordered, align 4 +; CHECK-NEXT: ret i32 [[TMP1]] +; +entry: + %0 = load i32, ptr %a, align 4 + store i32 %0, ptr %b, align 4 + %1 = load atomic i32, ptr %a unordered, align 4 + ret i32 %1 +}