read-global-variable-constant.ll
763 Bytes
; RUN: llc < %s -march=nvptx -mcpu=sm_35 | FileCheck %s
; Check load from constant global variables. These loads should be
; ld.global.nc (aka ldg).
@gv_float = external constant float
@gv_float2 = external constant <2 x float>
@gv_float4 = external constant <4 x float>
; CHECK-LABEL: test_gv_float()
define float @test_gv_float() {
; CHECK: ld.global.nc.f32
%v = load float, float* @gv_float
ret float %v
}
; CHECK-LABEL: test_gv_float2()
define <2 x float> @test_gv_float2() {
; CHECK: ld.global.nc.v2.f32
%v = load <2 x float>, <2 x float>* @gv_float2
ret <2 x float> %v
}
; CHECK-LABEL: test_gv_float4()
define <4 x float> @test_gv_float4() {
; CHECK: ld.global.nc.v4.f32
%v = load <4 x float>, <4 x float>* @gv_float4
ret <4 x float> %v
}