mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-23 19:23:23 +01:00
6063b52f83
Check the legality of ISD::[US]MULO to see whether Intrinsic::[us]mul_with_overflow will legalize into a function call (and, thus, will use the CTR register). Fixes PR32485. Patch by Tim Neumann! Differential Revision: https://reviews.llvm.org/D31790 llvm-svn: 299910
35 lines
1.3 KiB
LLVM
35 lines
1.3 KiB
LLVM
; RUN: llc -O1 -verify-machineinstrs < %s
|
|
target datalayout = "E-m:e-i64:64-n32:64"
|
|
target triple = "powerpc64-unknown-linux-gnu"
|
|
|
|
; Function Attrs: uwtable
|
|
define fastcc void @_Crash_Fn() unnamed_addr #0 {
|
|
entry-block:
|
|
br label %_Label_0
|
|
|
|
_Label_0: ; preds = %_Label_0, %entry-block
|
|
%result.0138 = phi i128 [ %5, %_Label_0 ], [ 0, %entry-block ]
|
|
%iter.sroa.0.0137 = phi i8* [ %0, %_Label_0 ], [ undef, %entry-block ]
|
|
%0 = getelementptr inbounds i8, i8* %iter.sroa.0.0137, i64 1
|
|
%1 = tail call { i128, i1 } @llvm.smul.with.overflow.i128(i128 %result.0138, i128 undef) #2
|
|
%2 = extractvalue { i128, i1 } %1, 0
|
|
%3 = tail call { i128, i1 } @llvm.sadd.with.overflow.i128(i128 %2, i128 0) #2
|
|
%4 = extractvalue { i128, i1 } %3, 1
|
|
%5 = extractvalue { i128, i1 } %3, 0
|
|
%6 = icmp eq i8* %0, null
|
|
br i1 %6, label %bb66.loopexit, label %_Label_0
|
|
|
|
bb66.loopexit: ; preds = %_Label_0
|
|
unreachable
|
|
}
|
|
|
|
; Function Attrs: nounwind readnone
|
|
declare { i128, i1 } @llvm.sadd.with.overflow.i128(i128, i128) #1
|
|
|
|
; Function Attrs: nounwind readnone
|
|
declare { i128, i1 } @llvm.smul.with.overflow.i128(i128, i128) #1
|
|
|
|
attributes #0 = { uwtable }
|
|
attributes #1 = { nounwind readnone }
|
|
attributes #2 = { nounwind }
|