mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-07-24 08:29:39 +00:00
ee84973420
We already exploit a number of instructions specific to z196, but not yet POPCNT. Add support for the population-count facility, MC support for the POPCNT instruction, CodeGen support for using POPCNT, and implement the getPopcntSupport TargetTransformInfo hook. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233689 91177308-0d34-0410-b5e6-96231b3b80d8
97 lines
2.1 KiB
LLVM
97 lines
2.1 KiB
LLVM
; Test population-count instruction
|
|
;
|
|
; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z196 | FileCheck %s
|
|
|
|
declare i32 @llvm.ctpop.i32(i32 %a)
|
|
declare i64 @llvm.ctpop.i64(i64 %a)
|
|
|
|
define i32 @f1(i32 %a) {
|
|
; CHECK-LABEL: f1:
|
|
; CHECK: popcnt %r0, %r2
|
|
; CHECK: sllk %r1, %r0, 16
|
|
; CHECK: ar %r1, %r0
|
|
; CHECK: sllk %r2, %r1, 8
|
|
; CHECK: ar %r2, %r1
|
|
; CHECK: srl %r2, 24
|
|
; CHECK: br %r14
|
|
|
|
%popcnt = call i32 @llvm.ctpop.i32(i32 %a)
|
|
ret i32 %popcnt
|
|
}
|
|
|
|
define i32 @f2(i32 %a) {
|
|
; CHECK-LABEL: f2:
|
|
; CHECK: llhr %r0, %r2
|
|
; CHECK: popcnt %r0, %r0
|
|
; CHECK: risblg %r2, %r0, 16, 151, 8
|
|
; CHECK: ar %r2, %r0
|
|
; CHECK: srl %r2, 8
|
|
; CHECK: br %r14
|
|
%and = and i32 %a, 65535
|
|
%popcnt = call i32 @llvm.ctpop.i32(i32 %and)
|
|
ret i32 %popcnt
|
|
}
|
|
|
|
define i32 @f3(i32 %a) {
|
|
; CHECK-LABEL: f3:
|
|
; CHECK: llcr %r0, %r2
|
|
; CHECK: popcnt %r2, %r0
|
|
; CHECK: br %r14
|
|
%and = and i32 %a, 255
|
|
%popcnt = call i32 @llvm.ctpop.i32(i32 %and)
|
|
ret i32 %popcnt
|
|
}
|
|
|
|
define i64 @f4(i64 %a) {
|
|
; CHECK-LABEL: f4:
|
|
; CHECK: popcnt %r0, %r2
|
|
; CHECK: sllg %r1, %r0, 32
|
|
; CHECK: agr %r1, %r0
|
|
; CHECK: sllg %r0, %r1, 16
|
|
; CHECK: agr %r0, %r1
|
|
; CHECK: sllg %r1, %r0, 8
|
|
; CHECK: agr %r1, %r0
|
|
; CHECK: srlg %r2, %r1, 56
|
|
; CHECK: br %r14
|
|
%popcnt = call i64 @llvm.ctpop.i64(i64 %a)
|
|
ret i64 %popcnt
|
|
}
|
|
|
|
define i64 @f5(i64 %a) {
|
|
; CHECK-LABEL: f5:
|
|
; CHECK: llgfr %r0, %r2
|
|
; CHECK: popcnt %r0, %r0
|
|
; CHECK: sllg %r1, %r0, 16
|
|
; CHECK: algfr %r0, %r1
|
|
; CHECK: sllg %r1, %r0, 8
|
|
; CHECK: algfr %r0, %r1
|
|
; CHECK: srlg %r2, %r0, 24
|
|
%and = and i64 %a, 4294967295
|
|
%popcnt = call i64 @llvm.ctpop.i64(i64 %and)
|
|
ret i64 %popcnt
|
|
}
|
|
|
|
define i64 @f6(i64 %a) {
|
|
; CHECK-LABEL: f6:
|
|
; CHECK: llghr %r0, %r2
|
|
; CHECK: popcnt %r0, %r0
|
|
; CHECK: risbg %r1, %r0, 48, 183, 8
|
|
; CHECK: agr %r1, %r0
|
|
; CHECK: srlg %r2, %r1, 8
|
|
; CHECK: br %r14
|
|
%and = and i64 %a, 65535
|
|
%popcnt = call i64 @llvm.ctpop.i64(i64 %and)
|
|
ret i64 %popcnt
|
|
}
|
|
|
|
define i64 @f7(i64 %a) {
|
|
; CHECK-LABEL: f7:
|
|
; CHECK: llgcr %r0, %r2
|
|
; CHECK: popcnt %r2, %r0
|
|
; CHECK: br %r14
|
|
%and = and i64 %a, 255
|
|
%popcnt = call i64 @llvm.ctpop.i64(i64 %and)
|
|
ret i64 %popcnt
|
|
}
|
|
|