mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-01 16:33:37 +01:00
41 lines
954 B
LLVM
41 lines
954 B
LLVM
; RUN: llc -march=x86-64 < %s | FileCheck %s
|
|
|
|
declare i64 @llvm.ctpop.i64(i64) nounwind readnone
|
|
|
|
define i32 @test1(i64 %x) nounwind readnone {
|
|
%count = tail call i64 @llvm.ctpop.i64(i64 %x)
|
|
%cast = trunc i64 %count to i32
|
|
%cmp = icmp ugt i32 %cast, 1
|
|
%conv = zext i1 %cmp to i32
|
|
ret i32 %conv
|
|
; CHECK: test1:
|
|
; CHECK: leaq -1([[A0:%rdi|%rcx]])
|
|
; CHECK-NEXT: testq
|
|
; CHECK-NEXT: setne
|
|
; CHECK: ret
|
|
}
|
|
|
|
|
|
define i32 @test2(i64 %x) nounwind readnone {
|
|
%count = tail call i64 @llvm.ctpop.i64(i64 %x)
|
|
%cmp = icmp ult i64 %count, 2
|
|
%conv = zext i1 %cmp to i32
|
|
ret i32 %conv
|
|
; CHECK: test2:
|
|
; CHECK: leaq -1([[A0]])
|
|
; CHECK-NEXT: testq
|
|
; CHECK-NEXT: sete
|
|
; CHECK: ret
|
|
}
|
|
|
|
define i32 @test3(i64 %x) nounwind readnone {
|
|
%count = tail call i64 @llvm.ctpop.i64(i64 %x)
|
|
%cast = trunc i64 %count to i6 ; Too small for 0-64
|
|
%cmp = icmp ult i6 %cast, 2
|
|
%conv = zext i1 %cmp to i32
|
|
ret i32 %conv
|
|
; CHECK: test3:
|
|
; CHECK: cmpb $2
|
|
; CHECK: ret
|
|
}
|