Author: Jonas Paulsson Date: 2020-03-03T15:00:31+01:00 New Revision: 9010b1b78a52e854b3dba8f0e0bc03eec5028a74
URL: https://github.com/llvm/llvm-project/commit/9010b1b78a52e854b3dba8f0e0bc03eec5028a74 DIFF: https://github.com/llvm/llvm-project/commit/9010b1b78a52e854b3dba8f0e0bc03eec5028a74.diff LOG: Revert "[SystemZ] Bugfix for backchain with packed-stack" This reverts commit 594f8e72700fb1ae244793e32ee328c8c8fc3d39. Sorry - pushed my local branch instead of on master. Added: Modified: llvm/lib/Target/SystemZ/SystemZFrameLowering.cpp Removed: llvm/test/CodeGen/SystemZ/frame-25.ll ################################################################################ diff --git a/llvm/lib/Target/SystemZ/SystemZFrameLowering.cpp b/llvm/lib/Target/SystemZ/SystemZFrameLowering.cpp index 0f43ccf63097..9eeccc25e1e6 100644 --- a/llvm/lib/Target/SystemZ/SystemZFrameLowering.cpp +++ b/llvm/lib/Target/SystemZ/SystemZFrameLowering.cpp @@ -315,10 +315,9 @@ void SystemZFrameLowering:: processFunctionBeforeFrameFinalized(MachineFunction &MF, RegScavenger *RS) const { MachineFrameInfo &MFFrame = MF.getFrameInfo(); - bool BackChain = MF.getFunction().hasFnAttribute("backchain"); - if (!usePackedStack(MF) || BackChain) - // Create the incoming register save area. + if (!usePackedStack(MF)) + // Always create the full incoming register save area. getOrCreateFramePointerSaveIndex(MF); // Get the size of our stack frame to be allocated ... diff --git a/llvm/test/CodeGen/SystemZ/frame-25.ll b/llvm/test/CodeGen/SystemZ/frame-25.ll deleted file mode 100644 index 64c175bd4eca..000000000000 --- a/llvm/test/CodeGen/SystemZ/frame-25.ll +++ /dev/null @@ -1,24 +0,0 @@ -; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s -; -; Test that space is allocated for the incoming back chain also in cases -; where no GPRs are saved / restored. - -define void @fun0() #0 { -; CHECK-LABEL: fun0: -; CHECK: lgr %r1, %r15 -; CHECK-NEXT: aghi %r15, -24 -; CHECK-NEXT: stg %r1, 152(%r15) -; CHECK-NEXT: #APP -; CHECK-NEXT: stcke 160(%r15) -; CHECK-NEXT: #NO_APP -; CHECK-NEXT: aghi %r15, 24 -; CHECK-NEXT: br %r14 - -entry: - %b = alloca [16 x i8], align 1 - %0 = getelementptr inbounds [16 x i8], [16 x i8]* %b, i64 0, i64 0 - call void asm "stcke $0", "=*Q"([16 x i8]* nonnull %b) #2 - ret void -} - -attributes #0 = { nounwind "packed-stack" "backchain" "use-soft-float"="true" } _______________________________________________ llvm-branch-commits mailing list llvm-branch-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-branch-commits
