diff options
| author | Quentin Colombet <qcolombet@apple.com> | 2016-10-12 03:57:43 +0000 |
|---|---|---|
| committer | Quentin Colombet <qcolombet@apple.com> | 2016-10-12 03:57:43 +0000 |
| commit | 404e4350dcc9690a5a48a66aaf32425651b84b7f (patch) | |
| tree | 988317e1a5ac031ac462fcf7319afaaac0b2821b | |
| parent | c4be4be5ddae96114e09244ad1ffcbe60741f879 (diff) | |
| download | bcm5719-llvm-404e4350dcc9690a5a48a66aaf32425651b84b7f.tar.gz bcm5719-llvm-404e4350dcc9690a5a48a66aaf32425651b84b7f.zip | |
[AArch64][MachineLegalizer] Mark more bitcasts as legal.
Those are copies, we do not have to do any legalization action for them.
llvm-svn: 283970
| -rw-r--r-- | llvm/lib/Target/AArch64/AArch64MachineLegalizer.cpp | 3 | ||||
| -rw-r--r-- | llvm/test/CodeGen/AArch64/GlobalISel/legalize-simple.mir | 10 |
2 files changed, 13 insertions, 0 deletions
diff --git a/llvm/lib/Target/AArch64/AArch64MachineLegalizer.cpp b/llvm/lib/Target/AArch64/AArch64MachineLegalizer.cpp index 4bb0f8d530f..adda760cb1d 100644 --- a/llvm/lib/Target/AArch64/AArch64MachineLegalizer.cpp +++ b/llvm/lib/Target/AArch64/AArch64MachineLegalizer.cpp @@ -176,6 +176,7 @@ AArch64MachineLegalizer::AArch64MachineLegalizer() { setAction({G_INTTOPTR, 0, p0}, Legal); setAction({G_INTTOPTR, 1, s64}, Legal); + // Casts for 32 and 64-bit width type are just copies. for (auto Ty : {s1, s8, s16, s32, s64}) { setAction({G_BITCAST, 0, Ty}, Legal); setAction({G_BITCAST, 1, Ty}, Legal); @@ -183,10 +184,12 @@ AArch64MachineLegalizer::AArch64MachineLegalizer() { for (int EltSize = 8; EltSize <= 64; EltSize *= 2) { setAction({G_BITCAST, 0, LLT::vector(128/EltSize, EltSize)}, Legal); + setAction({G_BITCAST, 1, LLT::vector(128/EltSize, EltSize)}, Legal); if (EltSize == 64) continue; setAction({G_BITCAST, 0, LLT::vector(64/EltSize, EltSize)}, Legal); + setAction({G_BITCAST, 1, LLT::vector(64/EltSize, EltSize)}, Legal); } computeTables(); diff --git a/llvm/test/CodeGen/AArch64/GlobalISel/legalize-simple.mir b/llvm/test/CodeGen/AArch64/GlobalISel/legalize-simple.mir index 499d800cd10..29cc49ff9d9 100644 --- a/llvm/test/CodeGen/AArch64/GlobalISel/legalize-simple.mir +++ b/llvm/test/CodeGen/AArch64/GlobalISel/legalize-simple.mir @@ -44,6 +44,9 @@ registers: - { id: 27, class: _ } - { id: 28, class: _ } - { id: 29, class: _ } + - { id: 30, class: _ } + - { id: 31, class: _ } + - { id: 32, class: _ } body: | bb.0.entry: liveins: %x0, %x1, %x2, %x3 @@ -117,4 +120,11 @@ body: | %27(s16) = G_SELECT %10, %12, %7 %28(s32) = G_SELECT %10, %15, %16 %29(s64) = G_SELECT %10, %9, %24 + + ; CHECK: %30(<2 x s32>) = G_BITCAST %9 + ; CHECK: %31(s64) = G_BITCAST %30 + ; CHECK: %32(s32) = G_BITCAST %15 + %30(<2 x s32>) = G_BITCAST %9 + %31(s64) = G_BITCAST %30 + %32(s32) = G_BITCAST %15 ... |
