llvm-6502/test/CodeGen/R600/address-space.ll
2014-03-19 22:19:49 +00:00

35 lines
981 B
LLVM

; RUN: llc -march=r600 -mcpu=SI < %s | FileCheck %s
; Test that codegenprepare understands address space sizes
%struct.foo = type { [3 x float], [3 x float] }
; FIXME: Extra V_MOV from SGPR to VGPR for second read. The address is
; already in a VGPR after the first read.
; CHECK-LABEL: @do_as_ptr_calcs:
; CHECK: S_LOAD_DWORD [[SREG1:s[0-9]+]],
; CHECK: V_MOV_B32_e32 [[VREG1:v[0-9]+]], [[SREG1]]
; CHECK: DS_READ_B32 v{{[0-9]+}}, [[VREG1]], 20
; CHECK: DS_READ_B32 v{{[0-9]+}}, v{{[0-9]+}}, 12
define void @do_as_ptr_calcs(%struct.foo addrspace(3)* nocapture %ptr) nounwind {
entry:
%x = getelementptr inbounds %struct.foo addrspace(3)* %ptr, i32 0, i32 1, i32 0
%y = getelementptr inbounds %struct.foo addrspace(3)* %ptr, i32 0, i32 1, i32 2
br label %bb32
bb32:
%a = load float addrspace(3)* %x, align 4
%b = load float addrspace(3)* %y, align 4
%cmp = fcmp one float %a, %b
br i1 %cmp, label %bb34, label %bb33
bb33:
unreachable
bb34:
unreachable
}