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| author | Eric Christopher <echristo@apple.com> | 2011-04-20 01:19:45 +0000 |
|---|---|---|
| committer | Eric Christopher <echristo@apple.com> | 2011-04-20 01:19:45 +0000 |
| commit | abbbfbd6726c7af8b27479b4311fe6bb6c40b52b (patch) | |
| tree | f4850c27a0e5e47e2fef7471bfc9a29fd80e1d72 /test | |
| parent | 0ccc0dde33ee78003367cb41a05156c16429dc71 (diff) | |
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
Diffstat (limited to 'test')
| -rw-r--r-- | test/CodeGen/ARM/umulo-32.ll | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/test/CodeGen/ARM/umulo-32.ll b/test/CodeGen/ARM/umulo-32.ll index aa7d28a623..fa5c0168fe 100644 --- a/test/CodeGen/ARM/umulo-32.ll +++ b/test/CodeGen/ARM/umulo-32.ll @@ -12,3 +12,30 @@ define i32 @func(i32 %a) nounwind { } declare %umul.ty @llvm.umul.with.overflow.i32(i32, i32) nounwind readnone + +define i32 @f(i32 %argc, i8** %argv) ssp { +; CHECK: func +; 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) |