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llvm-6502/test/CodeGen/ARM/umulo-32.ll

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If we can, lower the multiply part of a umulo/smulo call to a libcall with an invalid type then split the result and perform the overflow check normally. Fixes the 32-bit parts of rdar://8622122 and rdar://8774702. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123864 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-20 00:29:24 +00:00
; RUN: llc < %s -mtriple=thumbv6-apple-darwin | FileCheck %s
%umul.ty = type { i32, i1 }
Disambiguate function names in some CodeGen tests. (Some tests were using function names that also were names of instructions and/or doing other unusual things that were making the test not amenable to otherwise scriptable pattern matching.) No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186621 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-18 22:29:15 +00:00
define i32 @test1(i32 %a) nounwind {
; CHECK: test1:
If we can, lower the multiply part of a umulo/smulo call to a libcall with an invalid type then split the result and perform the overflow check normally. Fixes the 32-bit parts of rdar://8622122 and rdar://8774702. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123864 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-20 00:29:24 +00:00
; CHECK: muldi3
%tmp0 = tail call %umul.ty @llvm.umul.with.overflow.i32(i32 %a, i32 37)
%tmp1 = extractvalue %umul.ty %tmp0, 0
%tmp2 = select i1 undef, i32 -1, i32 %tmp1
ret i32 %tmp2
}
declare %umul.ty @llvm.umul.with.overflow.i32(i32, i32) nounwind readnone
Rewrite the expander for umulo/smulo to remember to sign extend the input manually and pass all (now) 4 arguments to the mul libcall. Add a new ExpandLibCall for just this (copied gratuitously from type legalization). Fixes rdar://9292577 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129842 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-20 01:19:45 +00:00
Disambiguate function names in some CodeGen tests. (Some tests were using function names that also were names of instructions and/or doing other unusual things that were making the test not amenable to otherwise scriptable pattern matching.) No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186621 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-18 22:29:15 +00:00
define i32 @test2(i32 %argc, i8** %argv) ssp {
; CHECK: test2:
Rewrite the expander for umulo/smulo to remember to sign extend the input manually and pass all (now) 4 arguments to the mul libcall. Add a new ExpandLibCall for just this (copied gratuitously from type legalization). Fixes rdar://9292577 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129842 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-20 01:19:45 +00:00
; CHECK: str r0
; CHECK: movs r2
; CHECK: mov r1
; CHECK: mov r3
; CHECK: muldi3
%1 = alloca i32, align 4
%2 = alloca i32, align 4
%3 = alloca i8**, align 4
%m_degree = alloca i32, align 4
store i32 0, i32* %1
store i32 %argc, i32* %2, align 4
store i8** %argv, i8*** %3, align 4
store i32 10, i32* %m_degree, align 4
%4 = load i32* %m_degree, align 4
%5 = call %umul.ty @llvm.umul.with.overflow.i32(i32 %4, i32 8)
%6 = extractvalue %umul.ty %5, 1
%7 = extractvalue %umul.ty %5, 0
%8 = select i1 %6, i32 -1, i32 %7
%9 = call noalias i8* @_Znam(i32 %8)
%10 = bitcast i8* %9 to double*
ret i32 0
}
declare noalias i8* @_Znam(i32)
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