From 5ca98fd98791947eba83a1ed3f2c8191ef7afa6c Mon Sep 17 00:00:00 2001 From: Dimitry Andric Date: Mon, 24 Nov 2014 09:08:18 +0000 Subject: Vendor import of llvm RELEASE_350/final tag r216957 (effectively, 3.5.0 release): https://llvm.org/svn/llvm-project/llvm/tags/RELEASE_350/final@216957 --- .../R600/simplify-demanded-bits-build-pair.ll | 38 ++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 test/CodeGen/R600/simplify-demanded-bits-build-pair.ll (limited to 'test/CodeGen/R600/simplify-demanded-bits-build-pair.ll') diff --git a/test/CodeGen/R600/simplify-demanded-bits-build-pair.ll b/test/CodeGen/R600/simplify-demanded-bits-build-pair.ll new file mode 100644 index 000000000000..e6f8ce8ef0ee --- /dev/null +++ b/test/CodeGen/R600/simplify-demanded-bits-build-pair.ll @@ -0,0 +1,38 @@ +; XFAIL: * +; RUN: llc -verify-machineinstrs -march=r600 -mcpu=SI -mattr=-promote-alloca < %s | FileCheck -check-prefix=SI %s + +; 64-bit select was originally lowered with a build_pair, and this +; could be simplified to 1 cndmask instead of 2, but that broken when +; it started being implemented with a v2i32 build_vector and +; bitcasting. +define void @trunc_select_i64(i32 addrspace(1)* %out, i64 %a, i64 %b, i32 %c) { + %cmp = icmp eq i32 %c, 0 + %select = select i1 %cmp, i64 %a, i64 %b + %trunc = trunc i64 %select to i32 + store i32 %trunc, i32 addrspace(1)* %out, align 4 + ret void +} + +; FIXME: Fix truncating store for local memory +; SI-LABEL: @trunc_load_alloca_i64: +; SI: V_MOVRELS_B32 +; SI-NOT: V_MOVRELS_B32 +; SI: S_ENDPGM +define void @trunc_load_alloca_i64(i64 addrspace(1)* %out, i32 %a, i32 %b) { + %idx = add i32 %a, %b + %alloca = alloca i64, i32 4 + %gep0 = getelementptr i64* %alloca, i64 0 + %gep1 = getelementptr i64* %alloca, i64 1 + %gep2 = getelementptr i64* %alloca, i64 2 + %gep3 = getelementptr i64* %alloca, i64 3 + store i64 24, i64* %gep0, align 8 + store i64 9334, i64* %gep1, align 8 + store i64 3935, i64* %gep2, align 8 + store i64 9342, i64* %gep3, align 8 + %gep = getelementptr i64* %alloca, i32 %idx + %load = load i64* %gep, align 8 + %mask = and i64 %load, 4294967296 + %add = add i64 %mask, -1 + store i64 %add, i64 addrspace(1)* %out, align 4 + ret void +} -- cgit v1.3