Author: Hans Wennborg Date: 2020-02-25T11:54:51+01:00 New Revision: 882720b7ce338c81aa24c1c2b2614c47d248920f
URL: https://github.com/llvm/llvm-project/commit/882720b7ce338c81aa24c1c2b2614c47d248920f DIFF: https://github.com/llvm/llvm-project/commit/882720b7ce338c81aa24c1c2b2614c47d248920f.diff LOG: Don't generate libcalls for wide shift on Windows ARM (PR42711) The previous patch (cff90f07cb5cc3c3bc58277926103af31caef308) didn't cover ARM. (cherry picked from commit decd021facba804b57e8d80b6159c987d3261ab8) Added: Modified: llvm/lib/Target/ARM/ARMISelLowering.cpp llvm/test/CodeGen/ARM/shift_minsize.ll Removed: ################################################################################ diff --git a/llvm/lib/Target/ARM/ARMISelLowering.cpp b/llvm/lib/Target/ARM/ARMISelLowering.cpp index 2f836a60a9e0..66f3f418d06c 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 4d10c64392da..de7327ed3fcb 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: _______________________________________________ llvm-branch-commits mailing list llvm-branch-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-branch-commits
