https://bugs.llvm.org/show_bug.cgi?id=46878
Bug ID: 46878
Summary: GlobalISel does not detect hasOpaqueSPAdjustment from
inline asm
Product: libraries
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: GlobalISel
Assignee: unassignedb...@nondot.org
Reporter: matthew.arsena...@amd.com
CC: llvm-bugs@lists.llvm.org, quentin.colom...@gmail.com
SelectionDAG detects inline asm with the stack pointer in the clobbers list,
and sets a field in the MachineFrameInfo. This is done in FunctionLoweringInfo,
and there's no equivalent check in GlobalISel
define void @opaque_sp() {
call void asm sideeffect "mov $0, #1", "~{sp}"()
ret void
}
llc -global-isel=0 -mtriple=aarch64-- -o - sp.ll -stop-after=finalize-isel |
grep hasOpaqueSPAdjustment
hasOpaqueSPAdjustment: true
llc -global-isel=1 -mtriple=aarch64-- -o - sp.ll -stop-after=finalize-isel |
grep hasOpaqueSPAdjustment
hasOpaqueSPAdjustment: false
--
You are receiving this mail because:
You are on the CC list for the bug._______________________________________________
llvm-bugs mailing list
llvm-bugs@lists.llvm.org
https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
