db158c7c83
Refresh of the generic scheduling model to use A510 instead of A55. Main benefits are to the little core, and introducing SVE scheduling information. Changes tested on various OoO cores, no performance degradation is seen. Differential Revision: https://reviews.llvm.org/D156799
145 lines
4.1 KiB
LLVM
145 lines
4.1 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
|
|
; RUN: llc -mtriple=aarch64-- -o - < %s | FileCheck %s
|
|
|
|
; Verify that we can fold csneg/csel into csinc instruction.
|
|
|
|
target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
|
|
target triple = "aarch64-unknown-linux-gnu"
|
|
|
|
; int csinc1 (int a, int b) { return !a ? b+3 : b+1; }
|
|
define i32 @csinc1(i32 %a, i32 %b) {
|
|
; CHECK-LABEL: csinc1:
|
|
; CHECK: // %bb.0: // %entry
|
|
; CHECK-NEXT: cmp w0, #0
|
|
; CHECK-NEXT: add w8, w1, #3
|
|
; CHECK-NEXT: csinc w0, w8, w1, eq
|
|
; CHECK-NEXT: ret
|
|
entry:
|
|
%tobool.not = icmp eq i32 %a, 0
|
|
%cond.v = select i1 %tobool.not, i32 3, i32 1
|
|
%cond = add nsw i32 %cond.v, %b
|
|
ret i32 %cond
|
|
}
|
|
|
|
; int csinc2 (int a, int b) { return a ? b+3 : b+1; }
|
|
define i32 @csinc2(i32 %a, i32 %b) {
|
|
; CHECK-LABEL: csinc2:
|
|
; CHECK: // %bb.0: // %entry
|
|
; CHECK-NEXT: cmp w0, #0
|
|
; CHECK-NEXT: add w8, w1, #3
|
|
; CHECK-NEXT: csinc w0, w8, w1, ne
|
|
; CHECK-NEXT: ret
|
|
entry:
|
|
%tobool.not = icmp eq i32 %a, 0
|
|
%cond.v = select i1 %tobool.not, i32 1, i32 3
|
|
%cond = add nsw i32 %cond.v, %b
|
|
ret i32 %cond
|
|
}
|
|
|
|
; int csinc3 (int a, int b) { return !a ? b+1 : b-3; }
|
|
define i32 @csinc3(i32 %a, i32 %b) {
|
|
; CHECK-LABEL: csinc3:
|
|
; CHECK: // %bb.0: // %entry
|
|
; CHECK-NEXT: sub w8, w1, #3
|
|
; CHECK-NEXT: cmp w0, #0
|
|
; CHECK-NEXT: csinc w0, w8, w1, ne
|
|
; CHECK-NEXT: ret
|
|
entry:
|
|
%tobool.not = icmp eq i32 %a, 0
|
|
%cond.v = select i1 %tobool.not, i32 1, i32 -3
|
|
%cond = add nsw i32 %cond.v, %b
|
|
ret i32 %cond
|
|
}
|
|
|
|
; int csinc4 (int a, int b) { return a ? b+1 : b-3; }
|
|
define i32 @csinc4(i32 %a, i32 %b) {
|
|
; CHECK-LABEL: csinc4:
|
|
; CHECK: // %bb.0: // %entry
|
|
; CHECK-NEXT: sub w8, w1, #3
|
|
; CHECK-NEXT: cmp w0, #0
|
|
; CHECK-NEXT: csinc w0, w8, w1, eq
|
|
; CHECK-NEXT: ret
|
|
entry:
|
|
%tobool.not = icmp eq i32 %a, 0
|
|
%cond.v = select i1 %tobool.not, i32 -3, i32 1
|
|
%cond = add nsw i32 %cond.v, %b
|
|
ret i32 %cond
|
|
}
|
|
|
|
; int csinc5 (int a, int b) { return a ? b+1 : b-4095; }
|
|
define i32 @csinc5(i32 %a, i32 %b) {
|
|
; CHECK-LABEL: csinc5:
|
|
; CHECK: // %bb.0: // %entry
|
|
; CHECK-NEXT: sub w8, w1, #4095
|
|
; CHECK-NEXT: cmp w0, #0
|
|
; CHECK-NEXT: csinc w0, w8, w1, eq
|
|
; CHECK-NEXT: ret
|
|
entry:
|
|
%tobool.not = icmp eq i32 %a, 0
|
|
%cond.v = select i1 %tobool.not, i32 -4095, i32 1
|
|
%cond = add nsw i32 %cond.v, %b
|
|
ret i32 %cond
|
|
}
|
|
|
|
; int csinc6 (int a, int b) { return a ? b+1 : b-4096; }
|
|
define i32 @csinc6(i32 %a, i32 %b) {
|
|
; CHECK-LABEL: csinc6:
|
|
; CHECK: // %bb.0: // %entry
|
|
; CHECK-NEXT: sub w8, w1, #1, lsl #12 // =4096
|
|
; CHECK-NEXT: cmp w0, #0
|
|
; CHECK-NEXT: csinc w0, w8, w1, eq
|
|
; CHECK-NEXT: ret
|
|
entry:
|
|
%tobool.not = icmp eq i32 %a, 0
|
|
%cond.v = select i1 %tobool.not, i32 -4096, i32 1
|
|
%cond = add nsw i32 %cond.v, %b
|
|
ret i32 %cond
|
|
}
|
|
|
|
; prevent larger constants (the add laid after csinc)
|
|
; int csinc7 (int a, int b) { return a ? b+1 : b-4097; }
|
|
define i32 @csinc7(i32 %a, i32 %b) {
|
|
; CHECK-LABEL: csinc7:
|
|
; CHECK: // %bb.0: // %entry
|
|
; CHECK-NEXT: mov w8, #-4097 // =0xffffefff
|
|
; CHECK-NEXT: cmp w0, #0
|
|
; CHECK-NEXT: csinc w8, w8, wzr, eq
|
|
; CHECK-NEXT: add w0, w8, w1
|
|
; CHECK-NEXT: ret
|
|
entry:
|
|
%tobool.not = icmp eq i32 %a, 0
|
|
%cond.v = select i1 %tobool.not, i32 -4097, i32 1
|
|
%cond = add nsw i32 %cond.v, %b
|
|
ret i32 %cond
|
|
}
|
|
|
|
; int csinc8 (int a, int b) { return a ? b-1 : b+1; }
|
|
define i32 @csinc8(i32 %a, i32 %b) {
|
|
; CHECK-LABEL: csinc8:
|
|
; CHECK: // %bb.0: // %entry
|
|
; CHECK-NEXT: sub w8, w1, #1
|
|
; CHECK-NEXT: cmp w0, #0
|
|
; CHECK-NEXT: csinc w0, w8, w1, ne
|
|
; CHECK-NEXT: ret
|
|
entry:
|
|
%tobool.not = icmp eq i32 %a, 0
|
|
%cond.v = select i1 %tobool.not, i32 1, i32 -1
|
|
%cond = add nsw i32 %cond.v, %b
|
|
ret i32 %cond
|
|
}
|
|
|
|
; int csinc9 (int a, int b) { return a ? b+1 : b-1; }
|
|
define i32 @csinc9(i32 %a, i32 %b) {
|
|
; CHECK-LABEL: csinc9:
|
|
; CHECK: // %bb.0: // %entry
|
|
; CHECK-NEXT: sub w8, w1, #1
|
|
; CHECK-NEXT: cmp w0, #0
|
|
; CHECK-NEXT: csinc w0, w8, w1, eq
|
|
; CHECK-NEXT: ret
|
|
entry:
|
|
%tobool.not = icmp eq i32 %a, 0
|
|
%cond.v = select i1 %tobool.not, i32 -1, i32 1
|
|
%cond = add nsw i32 %cond.v, %b
|
|
ret i32 %cond
|
|
}
|