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| author | Hans Wennborg <hans@chromium.org> | 2020-02-25 11:50:03 +0100 |
|---|---|---|
| committer | Hans Wennborg <hans@chromium.org> | 2020-02-25 11:54:51 +0100 |
| commit | 882720b7ce338c81aa24c1c2b2614c47d248920f (patch) | |
| tree | f268f4883d2fa98dbc6696ac2154bb00e251bf43 | |
| parent | c6f940b745c68f911e06ede1374f155d89fe3540 (diff) | |
| download | bcm5719-llvm-882720b7ce338c81aa24c1c2b2614c47d248920f.tar.gz bcm5719-llvm-882720b7ce338c81aa24c1c2b2614c47d248920f.zip | |
Don't generate libcalls for wide shift on Windows ARM (PR42711)
The previous patch (cff90f07cb5cc3c3bc58277926103af31caef308) didn't
cover ARM.
(cherry picked from commit decd021facba804b57e8d80b6159c987d3261ab8)
| -rw-r--r-- | llvm/lib/Target/ARM/ARMISelLowering.cpp | 2 | ||||
| -rw-r--r-- | llvm/test/CodeGen/ARM/shift_minsize.ll | 8 |
2 files changed, 8 insertions, 2 deletions
diff --git a/llvm/lib/Target/ARM/ARMISelLowering.cpp b/llvm/lib/Target/ARM/ARMISelLowering.cpp index 2f836a60a9e..66f3f418d06 100644 --- a/llvm/lib/Target/ARM/ARMISelLowering.cpp +++ b/llvm/lib/Target/ARM/ARMISelLowering.cpp @@ -16892,7 +16892,7 @@ bool ARMTargetLowering::isCheapToSpeculateCtlz() const { } bool ARMTargetLowering::shouldExpandShift(SelectionDAG &DAG, SDNode *N) const { - return !Subtarget->hasMinSize(); + return !Subtarget->hasMinSize() || Subtarget->isTargetWindows(); } Value *ARMTargetLowering::emitLoadLinked(IRBuilder<> &Builder, Value *Addr, diff --git a/llvm/test/CodeGen/ARM/shift_minsize.ll b/llvm/test/CodeGen/ARM/shift_minsize.ll index 4d10c64392d..de7327ed3fc 100644 --- a/llvm/test/CodeGen/ARM/shift_minsize.ll +++ b/llvm/test/CodeGen/ARM/shift_minsize.ll @@ -1,4 +1,10 @@ -; RUN: llc -mtriple=arm-eabi %s -o - | FileCheck %s +; RUN: llc -mtriple=arm-eabi %s -o - | FileCheck %s +; RUN: llc -mtriple=thumbv7-windows %s -o - | FileCheck %s -check-prefix=CHECK-WIN + +; The Windows runtime doesn't have these. +; CHECK-WIN-NOT: __ashldi3 +; CHECK-WIN-NOT: __ashrdi3 +; CHECK-WIN-NOT: __lshrdi3 define i64 @f0(i64 %val, i64 %amt) minsize optsize { ; CHECK-LABEL: f0: |
