llvm-project/llvm/test/CodeGen/PowerPC/2007-03-24-cntlzd.ll
Kai Nacke 427fb35192 [PPC] Opaque pointer migration, part 1.
The LIT test cases were migrated with the script provided by
Nikita Popov. Due to the size of the change it is split into
several parts.

Reviewed By: nemanja, amyk, nikic, PowerPC

Differential Revision: https://reviews.llvm.org/D135470
2022-10-11 17:24:06 +00:00

21 lines
772 B
LLVM

; RUN: llc -verify-machineinstrs -mcpu=g5 < %s | FileCheck %s
target datalayout = "E-m:e-i64:64-n32:64"
target triple = "powerpc64-unknown-linux-gnu"
define i32 @_ZNK4llvm5APInt17countLeadingZerosEv(ptr %t) nounwind {
%tmp19 = load i64, ptr %t
%tmp22 = tail call i64 @llvm.ctlz.i64( i64 %tmp19, i1 true ) ; <i64> [#uses=1]
%tmp23 = trunc i64 %tmp22 to i32
%tmp89 = add i32 %tmp23, -64 ; <i32> [#uses=1]
%tmp90 = add i32 %tmp89, 0 ; <i32> [#uses=1]
ret i32 %tmp90
; CHECK-LABEL: @_ZNK4llvm5APInt17countLeadingZerosEv
; CHECK: ld [[REG1:[0-9]+]], 0(3)
; CHECK-NEXT: cntlzd [[REG2:[0-9]+]], [[REG1]]
; CHECK-NEXT: addi 3, [[REG2]], -64
; CHECK-NEXT: blr
}
declare i64 @llvm.ctlz.i64(i64, i1)