6645bfa8f5
Need to subract from 64, not 32. Reviewed By: tra Differential Revision: https://reviews.llvm.org/D119639
26 lines
774 B
LLVM
26 lines
774 B
LLVM
; RUN: llc < %s -march=nvptx | FileCheck %s
|
|
|
|
|
|
declare i64 @llvm.nvvm.rotate.b64(i64, i32)
|
|
declare i64 @llvm.nvvm.rotate.right.b64(i64, i32)
|
|
|
|
; CHECK: rotate64
|
|
define i64 @rotate64(i64 %a, i32 %b) {
|
|
; CHECK: shl.b64 [[LHS:%.*]], [[RD1:%.*]], 3;
|
|
; CHECK: shr.b64 [[RHS:%.*]], [[RD1]], 61;
|
|
; CHECK: add.u64 [[RD2:%.*]], [[LHS]], [[RHS]];
|
|
; CHECK: ret
|
|
%val = tail call i64 @llvm.nvvm.rotate.b64(i64 %a, i32 3)
|
|
ret i64 %val
|
|
}
|
|
|
|
; CHECK: rotateright64
|
|
define i64 @rotateright64(i64 %a, i32 %b) {
|
|
; CHECK: shl.b64 [[LHS:%.*]], [[RD1:%.*]], 61;
|
|
; CHECK: shr.b64 [[RHS:%.*]], [[RD1]], 3;
|
|
; CHECK: add.u64 [[RD2:%.*]], [[LHS]], [[RHS]];
|
|
; CHECK: ret
|
|
%val = tail call i64 @llvm.nvvm.rotate.right.b64(i64 %a, i32 3)
|
|
ret i64 %val
|
|
}
|