Alex MacLean 369891b674
[NVPTX] use untyped loads and stores where ever possible (#137698)
In most cases, the type information attached to load and store
instructions is meaningless and inconsistently applied. We can usually
use ".b" loads and avoid the complexity of trying to assign the correct
type. The one expectation is sign-extending load, which will continue to
use ".s" to ensure the sign extension into a larger register is done
correctly.
2025-05-10 08:26:26 -07:00

32 lines
1.1 KiB
LLVM

; RUN: llc < %s -mtriple=nvptx64 -mcpu=sm_20 -verify-machineinstrs | FileCheck %s
; RUN: %if ptxas %{ llc < %s -mtriple=nvptx64 -mcpu=sm_20 -verify-machineinstrs | %ptxas-verify %}
target triple = "nvptx-unknown-cuda"
declare void @bar(<4 x i32>)
; CHECK-LABEL: .func foo(
; CHECK-DAG: ld.param.v4.b32 {[[E0:%r[0-9]+]], [[E1:%r[0-9]+]], [[E2:%r[0-9]+]], [[E3:%r[0-9]+]]}, [foo_param_0];
; CHECK: .param .align 16 .b8 param0[16];
; CHECK-DAG: st.param.v4.b32 [param0], {[[E0]], [[E1]], [[E2]], [[E3]]};
; CHECK: call.uni
; CHECK: ret;
define void @foo(<4 x i32> %a) {
tail call void @bar(<4 x i32> %a)
ret void
}
; CHECK-LABEL: .func foo3(
; CHECK-DAG: ld.param.v2.b32 {[[E0:%r[0-9]+]], [[E1:%r[0-9]+]]}, [foo3_param_0];
; CHECK-DAG: ld.param.b32 [[E2:%r[0-9]+]], [foo3_param_0+8];
; CHECK: .param .align 16 .b8 param0[16];
; CHECK-DAG: st.param.v2.b32 [param0], {[[E0]], [[E1]]};
; CHECK-DAG: st.param.b32 [param0+8], [[E2]];
; CHECK: call.uni
; CHECK: ret;
declare void @bar3(<3 x i32>)
define void @foo3(<3 x i32> %a) {
tail call void @bar3(<3 x i32> %a)
ret void
}