diff options
| author | Juergen Ributzka <juergen@apple.com> | 2014-08-20 01:10:36 +0000 |
|---|---|---|
| committer | Juergen Ributzka <juergen@apple.com> | 2014-08-20 01:10:36 +0000 |
| commit | 0781b860e44add0aa306197c643ebe40087d9dad (patch) | |
| tree | e41ea1bb0f3910eaa7d8c310e8409f13647e5381 /llvm | |
| parent | a0b988cb63b82fdc2045b1fd5f6473b41306c67d (diff) | |
| download | bcm5719-llvm-0781b860e44add0aa306197c643ebe40087d9dad.tar.gz bcm5719-llvm-0781b860e44add0aa306197c643ebe40087d9dad.zip | |
[FastISel][AArch64] Use the proper FMOV instruction to materialize a +0.0.
Use FMOVWSr/FMOVXDr instead of FMOVSr/FMOVDr, which have the proper register
class to be used with the zero register. This makes the MachineInstruction
verifier happy again.
This is related to <rdar://problem/18027157>.
llvm-svn: 216040
Diffstat (limited to 'llvm')
| -rw-r--r-- | llvm/lib/Target/AArch64/AArch64FastISel.cpp | 2 | ||||
| -rw-r--r-- | llvm/test/CodeGen/AArch64/arm64-fast-isel-materialize.ll | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/llvm/lib/Target/AArch64/AArch64FastISel.cpp b/llvm/lib/Target/AArch64/AArch64FastISel.cpp index 9f59f884dee..90c509d4ce0 100644 --- a/llvm/lib/Target/AArch64/AArch64FastISel.cpp +++ b/llvm/lib/Target/AArch64/AArch64FastISel.cpp @@ -291,7 +291,7 @@ unsigned AArch64FastISel::AArch64MaterializeFP(const ConstantFP *CFP, MVT VT) { // register, because the immediate version of fmov cannot encode zero. if (Val.isPosZero()) { unsigned ZReg = Is64Bit ? AArch64::XZR : AArch64::WZR; - unsigned Opc = Is64Bit ? AArch64::FMOVDr : AArch64::FMOVSr; + unsigned Opc = Is64Bit ? AArch64::FMOVXDr : AArch64::FMOVWSr; BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc, TII.get(Opc), ResultReg) .addReg(ZReg, getKillRegState(true)); return ResultReg; diff --git a/llvm/test/CodeGen/AArch64/arm64-fast-isel-materialize.ll b/llvm/test/CodeGen/AArch64/arm64-fast-isel-materialize.ll index 14dc0dd93b9..1dea5d944be 100644 --- a/llvm/test/CodeGen/AArch64/arm64-fast-isel-materialize.ll +++ b/llvm/test/CodeGen/AArch64/arm64-fast-isel-materialize.ll @@ -1,4 +1,4 @@ -; RUN: llc -O0 -fast-isel-abort -mtriple=arm64-apple-darwin < %s | FileCheck %s +; RUN: llc -O0 -fast-isel-abort -verify-machineinstrs -mtriple=arm64-apple-darwin < %s | FileCheck %s ; Materialize using fmov define float @fmov_float1() { |
