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https://github.com/RPCS3/llvm-mirror.git
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46f00f2f07
Summary:
Specifically, we upgrade llvm.nvvm.:
* brev{32,64}
* clz.{i,ll}
* popc.{i,ll}
* abs.{i,ll}
* {min,max}.{i,ll,u,ull}
* h2f
These either map directly to an existing LLVM target-generic
intrinsic or map to a simple LLVM target-generic idiom.
In all cases, we check that the code we generate is lowered to PTX as we
expect.
These builtins don't need to be backfilled in clang: They're not
accessible to user code from nvcc.
Reviewers: tra
Subscribers: majnemer, cfe-commits, llvm-commits, jholewinski
Differential Revision: https://reviews.llvm.org/D28793
llvm-svn: 292694
103 lines
3.4 KiB
LLVM
103 lines
3.4 KiB
LLVM
; Test to make sure NVVM intrinsics are automatically upgraded.
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; RUN: llvm-as < %s | llvm-dis | FileCheck %s
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; RUN: verify-uselistorder %s
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declare i32 @llvm.nvvm.brev32(i32)
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declare i64 @llvm.nvvm.brev64(i64)
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declare i32 @llvm.nvvm.clz.i(i32)
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declare i32 @llvm.nvvm.clz.ll(i64)
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declare i32 @llvm.nvvm.popc.i(i32)
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declare i32 @llvm.nvvm.popc.ll(i64)
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declare float @llvm.nvvm.h2f(i16)
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declare i32 @llvm.nvvm.abs.i(i32)
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declare i64 @llvm.nvvm.abs.ll(i64)
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declare i32 @llvm.nvvm.max.i(i32, i32)
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declare i64 @llvm.nvvm.max.ll(i64, i64)
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declare i32 @llvm.nvvm.max.ui(i32, i32)
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declare i64 @llvm.nvvm.max.ull(i64, i64)
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declare i32 @llvm.nvvm.min.i(i32, i32)
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declare i64 @llvm.nvvm.min.ll(i64, i64)
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declare i32 @llvm.nvvm.min.ui(i32, i32)
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declare i64 @llvm.nvvm.min.ull(i64, i64)
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; CHECK-LABEL: @simple_upgrade
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define void @simple_upgrade(i32 %a, i64 %b, i16 %c) {
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; CHECK: call i32 @llvm.bitreverse.i32(i32 %a)
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%r1 = call i32 @llvm.nvvm.brev32(i32 %a)
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; CHECK: call i64 @llvm.bitreverse.i64(i64 %b)
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%r2 = call i64 @llvm.nvvm.brev64(i64 %b)
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; CHECK: call i32 @llvm.ctlz.i32(i32 %a, i1 false)
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%r3 = call i32 @llvm.nvvm.clz.i(i32 %a)
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; CHECK: [[clz:%[a-zA-Z0-9.]+]] = call i64 @llvm.ctlz.i64(i64 %b, i1 false)
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; CHECK: trunc i64 [[clz]] to i32
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%r4 = call i32 @llvm.nvvm.clz.ll(i64 %b)
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; CHECK: call i32 @llvm.ctpop.i32(i32 %a)
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%r5 = call i32 @llvm.nvvm.popc.i(i32 %a)
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; CHECK: [[popc:%[a-zA-Z0-9.]+]] = call i64 @llvm.ctpop.i64(i64 %b)
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; CHECK: trunc i64 [[popc]] to i32
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%r6 = call i32 @llvm.nvvm.popc.ll(i64 %b)
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; CHECK: call float @llvm.convert.from.fp16.f32(i16 %c)
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%r7 = call float @llvm.nvvm.h2f(i16 %c)
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ret void
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}
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; CHECK-LABEL @abs
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define void @abs(i32 %a, i64 %b) {
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; CHECK-DAG: [[negi:%[a-zA-Z0-9.]+]] = sub i32 0, %a
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; CHECK-DAG: [[cmpi:%[a-zA-Z0-9.]+]] = icmp sge i32 %a, 0
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; CHECK: select i1 [[cmpi]], i32 %a, i32 [[negi]]
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%r1 = call i32 @llvm.nvvm.abs.i(i32 %a)
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; CHECK-DAG: [[negll:%[a-zA-Z0-9.]+]] = sub i64 0, %b
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; CHECK-DAG: [[cmpll:%[a-zA-Z0-9.]+]] = icmp sge i64 %b, 0
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; CHECK: select i1 [[cmpll]], i64 %b, i64 [[negll]]
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%r2 = call i64 @llvm.nvvm.abs.ll(i64 %b)
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ret void
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}
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; CHECK-LABEL: @min_max
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define void @min_max(i32 %a1, i32 %a2, i64 %b1, i64 %b2) {
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; CHECK: [[maxi:%[a-zA-Z0-9.]+]] = icmp sge i32 %a1, %a2
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; CHECK: select i1 [[maxi]], i32 %a1, i32 %a2
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%r1 = call i32 @llvm.nvvm.max.i(i32 %a1, i32 %a2)
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; CHECK: [[maxll:%[a-zA-Z0-9.]+]] = icmp sge i64 %b1, %b2
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; CHECK: select i1 [[maxll]], i64 %b1, i64 %b2
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%r2 = call i64 @llvm.nvvm.max.ll(i64 %b1, i64 %b2)
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; CHECK: [[maxui:%[a-zA-Z0-9.]+]] = icmp uge i32 %a1, %a2
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; CHECK: select i1 [[maxui]], i32 %a1, i32 %a2
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%r3 = call i32 @llvm.nvvm.max.ui(i32 %a1, i32 %a2)
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; CHECK: [[maxull:%[a-zA-Z0-9.]+]] = icmp uge i64 %b1, %b2
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; CHECK: select i1 [[maxull]], i64 %b1, i64 %b2
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%r4 = call i64 @llvm.nvvm.max.ull(i64 %b1, i64 %b2)
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; CHECK: [[mini:%[a-zA-Z0-9.]+]] = icmp sle i32 %a1, %a2
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; CHECK: select i1 [[mini]], i32 %a1, i32 %a2
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%r5 = call i32 @llvm.nvvm.min.i(i32 %a1, i32 %a2)
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; CHECK: [[minll:%[a-zA-Z0-9.]+]] = icmp sle i64 %b1, %b2
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; CHECK: select i1 [[minll]], i64 %b1, i64 %b2
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%r6 = call i64 @llvm.nvvm.min.ll(i64 %b1, i64 %b2)
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; CHECK: [[minui:%[a-zA-Z0-9.]+]] = icmp ule i32 %a1, %a2
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; CHECK: select i1 [[minui]], i32 %a1, i32 %a2
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%r7 = call i32 @llvm.nvvm.min.ui(i32 %a1, i32 %a2)
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; CHECK: [[minull:%[a-zA-Z0-9.]+]] = icmp ule i64 %b1, %b2
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; CHECK: select i1 [[minull]], i64 %b1, i64 %b2
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%r8 = call i64 @llvm.nvvm.min.ull(i64 %b1, i64 %b2)
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ret void
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}
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