From 9bc4b2c0dae143e72624984dfd5e3a4ff2e95eb2 Mon Sep 17 00:00:00 2001 From: Matt Arsenault Date: Mon, 18 Nov 2013 20:09:50 +0000 Subject: R600/SI: Fix multiple SGPR reads when using VCC. No other SGPR operands are allowed, so if VCC is used, move the other to a VGPR. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195041 91177308-0d34-0410-b5e6-96231b3b80d8 --- test/CodeGen/R600/add_i64.ll | 21 ++++++++++++++++++--- 1 file changed, 18 insertions(+), 3 deletions(-) (limited to 'test/CodeGen/R600') diff --git a/test/CodeGen/R600/add_i64.ll b/test/CodeGen/R600/add_i64.ll index 1f846b4ed3..c5c2a11e62 100644 --- a/test/CodeGen/R600/add_i64.ll +++ b/test/CodeGen/R600/add_i64.ll @@ -18,13 +18,28 @@ define void @test_i64_vreg(i64 addrspace(1)* noalias %out, i64 addrspace(1)* noa ret void } -; SI-LABEL: @test_i64_sreg: -define void @test_i64_sreg(i64 addrspace(1)* noalias %out, i64 %a, i64 %b) { - %result = add i64 %a, %b +; SI-LABEL: @one_sgpr: +define void @one_sgpr(i64 addrspace(1)* noalias %out, i64 addrspace(1)* noalias %in, i64 addrspace(1)* noalias %in_bar, i64 %a) { + %foo = load i64 addrspace(1)* %in, align 8 + %result = add i64 %foo, %a store i64 %result, i64 addrspace(1)* %out ret void } +; FIXME: This case is broken +; +; Swap the arguments. Check that the SGPR -> VGPR copy works with the +; SGPR as other operand. +; +; XXXSI-LABEL: @one_sgpr_reversed: +; define void @one_sgpr_reversed(i64 addrspace(1)* noalias %out, i64 addrspace(1)* noalias %in, i64 %a) { +; %foo = load i64 addrspace(1)* %in, align 8 +; %result = add i64 %a, %foo +; store i64 %result, i64 addrspace(1)* %out +; ret void +; } + + ; SI-LABEL: @test_v2i64_sreg: define void @test_v2i64_sreg(<2 x i64> addrspace(1)* noalias %out, <2 x i64> %a, <2 x i64> %b) { %result = add <2 x i64> %a, %b -- cgit v1.2.3