From f25afa06999c441495213462b9184161c60dee94 Mon Sep 17 00:00:00 2001 From: David Bolvansky Date: Mon, 5 Aug 2019 09:58:32 +0000 Subject: [PATCH] [InstCombine] Added mempcpy tests [NFC] git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@367825 91177308-0d34-0410-b5e6-96231b3b80d8 --- test/Transforms/InstCombine/mempcpy.ll | 31 ++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 test/Transforms/InstCombine/mempcpy.ll diff --git a/test/Transforms/InstCombine/mempcpy.ll b/test/Transforms/InstCombine/mempcpy.ll new file mode 100644 index 00000000000..ce372d8f37d --- /dev/null +++ b/test/Transforms/InstCombine/mempcpy.ll @@ -0,0 +1,31 @@ +; NOTE: Assertions have been autogenerated by utils/update_test_checks.py +; RUN: opt -instcombine -S < %s | FileCheck %s + +define i8* @memcpy_nonconst_n(i8* %d, i8* nocapture readonly %s, i64 %n) { +; CHECK-LABEL: @memcpy_nonconst_n( +; CHECK-NEXT: [[R:%.*]] = tail call i8* @mempcpy(i8* [[D:%.*]], i8* [[S:%.*]], i64 [[N:%.*]]) +; CHECK-NEXT: ret i8* [[R]] +; + %r = tail call i8* @mempcpy(i8* %d, i8* %s, i64 %n) + ret i8* %r +} + +define i8* @memcpy_small_const_n(i8* %d, i8* nocapture readonly %s) { +; CHECK-LABEL: @memcpy_small_const_n( +; CHECK-NEXT: [[R:%.*]] = tail call i8* @mempcpy(i8* [[D:%.*]], i8* [[S:%.*]], i64 8) +; CHECK-NEXT: ret i8* [[R]] +; + %r = tail call i8* @mempcpy(i8* %d, i8* %s, i64 8) + ret i8* %r +} + +define i8* @memcpy_big_const_n(i8* %d, i8* nocapture readonly %s) { +; CHECK-LABEL: @memcpy_big_const_n( +; CHECK-NEXT: [[R:%.*]] = tail call i8* @mempcpy(i8* [[D:%.*]], i8* [[S:%.*]], i64 1024) +; CHECK-NEXT: ret i8* [[R]] +; + %r = tail call i8* @mempcpy(i8* %d, i8* %s, i64 1024) + ret i8* %r +} + +declare i8* @mempcpy(i8*, i8* nocapture readonly, i64) -- 2.40.0