File: read-global-variable-constant.ll

package info (click to toggle)
llvm-toolchain-15 1%3A15.0.6-4
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,554,644 kB
  • sloc: cpp: 5,922,452; ansic: 1,012,136; asm: 674,362; python: 191,568; objc: 73,855; f90: 42,327; lisp: 31,913; pascal: 11,973; javascript: 10,144; sh: 9,421; perl: 7,447; ml: 5,527; awk: 3,523; makefile: 2,520; xml: 885; cs: 573; fortran: 567
file content (30 lines) | stat: -rw-r--r-- 848 bytes parent folder | download 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
 
; RUN: llc < %s -march=nvptx -mcpu=sm_35 | FileCheck %s
; RUN: %if ptxas %{ llc < %s -march=nvptx -mcpu=sm_35 | %ptxas-verify -arch=sm_35 %}

; 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
}