diff options
| author | Chris Lattner <sabre@nondot.org> | 2008-10-17 17:59:52 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2008-10-17 17:59:52 +0000 |
| commit | 3d0c4c4657f179d8256dfa04e38ce9bd2cc67d2b (patch) | |
| tree | d287fc02926f1c844ff4027f65da561b1ceaac5f | |
| parent | 0c52644cd8e46ca4c9caa6c51d43f97a2de8c5f5 (diff) | |
Fix a bug where the x86 backend would reject 64-bit r constraints when
in 32-bit mode instead of assigning a register pair. This has nothing to
do with PR2356, but I happened to notice it while working on it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57704 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/X86/X86ISelLowering.cpp | 2 | ||||
| -rw-r--r-- | test/CodeGen/X86/2008-10-17-Asm64bitRConstraint.ll | 9 |
2 files changed, 10 insertions, 1 deletions
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp index d32a9f052d..0607797b71 100644 --- a/lib/Target/X86/X86ISelLowering.cpp +++ b/lib/Target/X86/X86ISelLowering.cpp @@ -7511,7 +7511,7 @@ X86TargetLowering::getRegForInlineAsmConstraint(const std::string &Constraint, case 'l': // INDEX_REGS if (VT == MVT::i64 && Subtarget->is64Bit()) return std::make_pair(0U, X86::GR64RegisterClass); - if (VT == MVT::i32) + if (VT == MVT::i32 || VT == MVT::i64) return std::make_pair(0U, X86::GR32RegisterClass); else if (VT == MVT::i16) return std::make_pair(0U, X86::GR16RegisterClass); diff --git a/test/CodeGen/X86/2008-10-17-Asm64bitRConstraint.ll b/test/CodeGen/X86/2008-10-17-Asm64bitRConstraint.ll new file mode 100644 index 0000000000..eb2ec3760b --- /dev/null +++ b/test/CodeGen/X86/2008-10-17-Asm64bitRConstraint.ll @@ -0,0 +1,9 @@ +; RUN: llvm-as < %s | llc -march=x86 +; RUN: llvm-as < %s | llc -march=x86-64 + +define void @test(i64 %x) nounwind { +entry: + tail call void asm sideeffect "ASM: $0", "r,~{dirflag},~{fpsr},~{flags}"(i64 %x) nounwind + ret void +} + |