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| author | Clement Courbet <courbet@google.com> | 2019-04-01 13:48:50 +0000 |
|---|---|---|
| committer | Clement Courbet <courbet@google.com> | 2019-04-01 13:48:50 +0000 |
| commit | 7e062c9b1f9ad02010127aa0800abbfcd4fb804c (patch) | |
| tree | f5fa18e4e7e0bdaf26436a45161995c9c4f86f71 | |
| parent | bf55c4e3e390e108decb5023cb785dddd422c78f (diff) | |
| download | bcm5719-llvm-7e062c9b1f9ad02010127aa0800abbfcd4fb804c.tar.gz bcm5719-llvm-7e062c9b1f9ad02010127aa0800abbfcd4fb804c.zip | |
[X86] Make post-ra scheduling macrofusion-aware.
Subscribers: MatzeB, arsenm, jvesely, nhaehnle, hiraditya, javed.absar, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D59688
llvm-svn: 357384
| -rw-r--r-- | llvm/lib/Target/X86/X86Subtarget.cpp | 6 | ||||
| -rw-r--r-- | llvm/lib/Target/X86/X86Subtarget.h | 3 | ||||
| -rw-r--r-- | llvm/test/CodeGen/X86/testb-je-fusion.ll | 4 |
3 files changed, 11 insertions, 2 deletions
diff --git a/llvm/lib/Target/X86/X86Subtarget.cpp b/llvm/lib/Target/X86/X86Subtarget.cpp index d6ffad0137f..177fde45911 100644 --- a/llvm/lib/Target/X86/X86Subtarget.cpp +++ b/llvm/lib/Target/X86/X86Subtarget.cpp @@ -14,6 +14,7 @@ #include "X86CallLowering.h" #include "X86LegalizerInfo.h" +#include "X86MacroFusion.h" #include "X86RegisterBankInfo.h" #include "X86Subtarget.h" #include "MCTargetDesc/X86BaseInfo.h" @@ -366,3 +367,8 @@ const RegisterBankInfo *X86Subtarget::getRegBankInfo() const { bool X86Subtarget::enableEarlyIfConversion() const { return hasCMov() && X86EarlyIfConv; } + +void X86Subtarget::getPostRAMutations( + std::vector<std::unique_ptr<ScheduleDAGMutation>> &Mutations) const { + Mutations.push_back(createX86MacroFusionDAGMutation()); +} diff --git a/llvm/lib/Target/X86/X86Subtarget.h b/llvm/lib/Target/X86/X86Subtarget.h index 2bd36d42c5c..b49912bae69 100644 --- a/llvm/lib/Target/X86/X86Subtarget.h +++ b/llvm/lib/Target/X86/X86Subtarget.h @@ -843,6 +843,9 @@ public: bool enableEarlyIfConversion() const override; + void getPostRAMutations( + std::vector<std::unique_ptr<ScheduleDAGMutation>> &Mutations) const; + AntiDepBreakMode getAntiDepBreakMode() const override { return TargetSubtargetInfo::ANTIDEP_CRITICAL; } diff --git a/llvm/test/CodeGen/X86/testb-je-fusion.ll b/llvm/test/CodeGen/X86/testb-je-fusion.ll index 538baea0fba..6bda8486185 100644 --- a/llvm/test/CodeGen/X86/testb-je-fusion.ll +++ b/llvm/test/CodeGen/X86/testb-je-fusion.ll @@ -45,8 +45,8 @@ define i32 @macrofuse_test_je(i32 %flags, i8* %p) nounwind { ; BRANCHFUSION_POSTRA-LABEL: macrofuse_test_je: ; BRANCHFUSION_POSTRA: # %bb.0: # %entry ; BRANCHFUSION_POSTRA-NEXT: xorl %eax, %eax -; BRANCHFUSION_POSTRA-NEXT: testl $512, %edi # imm = 0x200 ; BRANCHFUSION_POSTRA-NEXT: movb $1, (%rsi) +; BRANCHFUSION_POSTRA-NEXT: testl $512, %edi # imm = 0x200 ; BRANCHFUSION_POSTRA-NEXT: je .LBB0_2 ; BRANCHFUSION_POSTRA-NEXT: # %bb.1: # %if.then ; BRANCHFUSION_POSTRA-NEXT: movl $1, %eax @@ -105,8 +105,8 @@ define i32 @macrofuse_cmp_je(i32 %flags, i8* %p) nounwind { ; ; BRANCHFUSION_POSTRA-LABEL: macrofuse_cmp_je: ; BRANCHFUSION_POSTRA: # %bb.0: # %entry -; BRANCHFUSION_POSTRA-NEXT: cmpl $512, %edi # imm = 0x200 ; BRANCHFUSION_POSTRA-NEXT: movb $1, (%rsi) +; BRANCHFUSION_POSTRA-NEXT: cmpl $512, %edi # imm = 0x200 ; BRANCHFUSION_POSTRA-NEXT: je .LBB1_1 ; BRANCHFUSION_POSTRA-NEXT: # %bb.2: # %if.then ; BRANCHFUSION_POSTRA-NEXT: movl $1, %eax |
