divmod.ll
2.42 KB
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; RUN: llc < %s -mtriple=arm-apple-ios5.0 -mcpu=cortex-a8 | FileCheck %s -check-prefix=A8
; RUN: llc < %s -mtriple=arm-apple-ios5.0 -mcpu=swift | FileCheck %s -check-prefix=SWIFT
; RUN: llc < %s -mtriple=thumbv7-apple-macho -mcpu=cortex-a8 | FileCheck %s -check-prefix=A8
; rdar://12481395
define void @foo(i32 %x, i32 %y, i32* nocapture %P) nounwind ssp {
entry:
; A8-LABEL: foo:
; A8: bl ___divmodsi4
; A8-NOT: bl ___divmodsi4
; SWIFT-LABEL: foo:
; SWIFT: sdiv
; SWIFT: mls
; SWIFT-NOT: bl __divmodsi4
%div = sdiv i32 %x, %y
store i32 %div, i32* %P, align 4
%rem = srem i32 %x, %y
%arrayidx6 = getelementptr inbounds i32, i32* %P, i32 1
store i32 %rem, i32* %arrayidx6, align 4
ret void
}
define void @bar(i32 %x, i32 %y, i32* nocapture %P) nounwind ssp {
entry:
; A8-LABEL: bar:
; A8: bl ___udivmodsi4
; A8-NOT: bl ___udivmodsi4
; SWIFT-LABEL: bar:
; SWIFT: udiv
; SWIFT: mls
; SWIFT-NOT: bl __udivmodsi4
%div = udiv i32 %x, %y
store i32 %div, i32* %P, align 4
%rem = urem i32 %x, %y
%arrayidx6 = getelementptr inbounds i32, i32* %P, i32 1
store i32 %rem, i32* %arrayidx6, align 4
ret void
}
; rdar://9280991
@flags = external unnamed_addr global i32
@tabsize = external unnamed_addr global i32
define void @do_indent(i32 %cols) nounwind {
entry:
; A8-LABEL: do_indent:
; SWIFT-LABEL: do_indent:
%0 = load i32, i32* @flags, align 4
%1 = and i32 %0, 67108864
%2 = icmp eq i32 %1, 0
br i1 %2, label %bb1, label %bb
bb:
; A8: bl ___divmodsi4
; SWIFT: sdiv
; SWIFT: mls
; SWIFT-NOT: bl __divmodsi4
%3 = load i32, i32* @tabsize, align 4
%4 = srem i32 %cols, %3
%5 = sdiv i32 %cols, %3
%6 = tail call i32 @llvm.objectsize.i32.p0i8(i8* null, i1 false)
%7 = tail call i8* @__memset_chk(i8* null, i32 9, i32 %5, i32 %6) nounwind
br label %bb1
bb1:
%line_indent_len.0 = phi i32 [ %4, %bb ], [ 0, %entry ]
%8 = getelementptr inbounds i8, i8* null, i32 %line_indent_len.0
store i8 0, i8* %8, align 1
ret void
}
declare i32 @llvm.objectsize.i32.p0i8(i8*, i1) nounwind readnone
declare i8* @__memset_chk(i8*, i32, i32, i32) nounwind
; rdar://11714607
define i32 @howmany(i32 %x, i32 %y) nounwind {
entry:
; A8-LABEL: howmany:
; A8: bl ___udivmodsi4
; A8-NOT: ___udivsi3
; SWIFT-LABEL: howmany:
; SWIFT: udiv
; SWIFT: mls
; SWIFT-NOT: bl __udivmodsi4
%rem = urem i32 %x, %y
%div = udiv i32 %x, %y
%not.cmp = icmp ne i32 %rem, 0
%add = zext i1 %not.cmp to i32
%cond = add i32 %add, %div
ret i32 %cond
}