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| author | Andrew Trick <atrick@apple.com> | 2013-09-25 18:14:12 +0000 |
|---|---|---|
| committer | Andrew Trick <atrick@apple.com> | 2013-09-25 18:14:12 +0000 |
| commit | 070156437752179833b1e5fddd50caa03fd7c12f (patch) | |
| tree | 51f3737749c059861d132cc0390b8693fb908136 /lib/Target/X86/X86SchedSandyBridge.td | |
| parent | 2558c2bfbaa4bfd49ee8e06be78a0ccb0f3ff0e7 (diff) | |
| download | external_llvm-070156437752179833b1e5fddd50caa03fd7c12f.zip external_llvm-070156437752179833b1e5fddd50caa03fd7c12f.tar.gz external_llvm-070156437752179833b1e5fddd50caa03fd7c12f.tar.bz2 | |
Mark the x86 machine model as incomplete. PR17367.
Ideally, the machinel model is added at the time the instructions are
defined. But many instructions in X86InstrSSE.td still need a model.
Without this workaround the scheduler asserts because x86 already has
itinerary classes for these instructions, indicating they should be
modeled by the scheduler. Since we use the new machine model for other
instructions, it expects a new machine model for these too.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191391 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/X86/X86SchedSandyBridge.td')
| -rw-r--r-- | lib/Target/X86/X86SchedSandyBridge.td | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/Target/X86/X86SchedSandyBridge.td b/lib/Target/X86/X86SchedSandyBridge.td index 52ead94..3011c6d 100644 --- a/lib/Target/X86/X86SchedSandyBridge.td +++ b/lib/Target/X86/X86SchedSandyBridge.td @@ -20,6 +20,10 @@ def SandyBridgeModel : SchedMachineModel { let MicroOpBufferSize = 168; // Based on the reorder buffer. let LoadLatency = 4; let MispredictPenalty = 16; + + // FIXME: SSE4 and AVX are unimplemented. This flag is set to allow + // the scheduler to assign a default model to unrecognized opcodes. + let CompleteModel = 0; } let SchedModel = SandyBridgeModel in { |