f24cf59d7a
As part of an effort to enable instr-ref-based debug value tracking, this PR implements `SystemZInstrInfo::isLoadFromStackSlotPostFE`, as well as `SystemZInstrInfo::isStoreToStackSlotPostFE`. The implementation relies upon the presence of MachineMemoryOperands on the relevant `MachineInstr`s in order to access the `FrameIndex` post frame index elimination. Since these new functions are only meant to be called after frame-index elimination, they assert against the present of a frame index on the base register operand of the instruction. Outside of the utility of these functions to enable instr-ref-based debug value tracking, they also changes the behavior of the AsmPrinter, since it will now be able to properly detect non-folded spills and reloads, so this changes a number of tests that were checking specifically for folded reloads. Note that there are some tests that still check for `vst` and `vl` as folded spills/reloads even though they should be straight reloads. This will be addressed in a future PR. Co-authored-by: Dominik Steenken <dominik.steenken@gmail.com>
125 lines
4.7 KiB
LLVM
125 lines
4.7 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
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; Test setjmp store jmp_buf
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; Return address in slot 2.
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; Backchain value is stored in slot 3 for -mbackchain option.
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; Stack Pointer in slot 4.
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; Clobber %r6-%r15, %f8-%f15.
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; RUN: llc < %s -verify-machineinstrs -mtriple=s390x-linux-gnu | FileCheck %s
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declare i32 @llvm.eh.sjlj.setjmp(ptr)
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@buf = global [20 x ptr] zeroinitializer, align 8
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define void @foo() {
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; CHECK-LABEL: foo:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: stmg %r6, %r15, 48(%r15)
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; CHECK-NEXT: .cfi_offset %r6, -112
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; CHECK-NEXT: .cfi_offset %r7, -104
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; CHECK-NEXT: .cfi_offset %r8, -96
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; CHECK-NEXT: .cfi_offset %r9, -88
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; CHECK-NEXT: .cfi_offset %r10, -80
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; CHECK-NEXT: .cfi_offset %r11, -72
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; CHECK-NEXT: .cfi_offset %r12, -64
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; CHECK-NEXT: .cfi_offset %r13, -56
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; CHECK-NEXT: .cfi_offset %r14, -48
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; CHECK-NEXT: .cfi_offset %r15, -40
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; CHECK-NEXT: aghi %r15, -64
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; CHECK-NEXT: .cfi_def_cfa_offset 224
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; CHECK-NEXT: std %f8, 56(%r15) # 8-byte Spill
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; CHECK-NEXT: std %f9, 48(%r15) # 8-byte Spill
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; CHECK-NEXT: std %f10, 40(%r15) # 8-byte Spill
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; CHECK-NEXT: std %f11, 32(%r15) # 8-byte Spill
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; CHECK-NEXT: std %f12, 24(%r15) # 8-byte Spill
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; CHECK-NEXT: std %f13, 16(%r15) # 8-byte Spill
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; CHECK-NEXT: std %f14, 8(%r15) # 8-byte Spill
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; CHECK-NEXT: std %f15, 0(%r15) # 8-byte Spill
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; CHECK-NEXT: .cfi_offset %f8, -168
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; CHECK-NEXT: .cfi_offset %f9, -176
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; CHECK-NEXT: .cfi_offset %f10, -184
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; CHECK-NEXT: .cfi_offset %f11, -192
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; CHECK-NEXT: .cfi_offset %f12, -200
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; CHECK-NEXT: .cfi_offset %f13, -208
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; CHECK-NEXT: .cfi_offset %f14, -216
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; CHECK-NEXT: .cfi_offset %f15, -224
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; CHECK-NEXT: lgrl %r1, buf@GOT
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; CHECK-NEXT: larl %r0, .LBB0_1
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; CHECK-NEXT: stg %r0, 8(%r1)
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; CHECK-NEXT: stg %r15, 24(%r1)
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; CHECK-NEXT: .LBB0_1: # Block address taken
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; CHECK-NEXT: # %entry
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; CHECK-NEXT: .LBB0_2: # %entry
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; CHECK-NEXT: ld %f8, 56(%r15) # 8-byte Reload
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; CHECK-NEXT: ld %f9, 48(%r15) # 8-byte Reload
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; CHECK-NEXT: ld %f10, 40(%r15) # 8-byte Reload
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; CHECK-NEXT: ld %f11, 32(%r15) # 8-byte Reload
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; CHECK-NEXT: ld %f12, 24(%r15) # 8-byte Reload
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; CHECK-NEXT: ld %f13, 16(%r15) # 8-byte Reload
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; CHECK-NEXT: ld %f14, 8(%r15) # 8-byte Reload
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; CHECK-NEXT: ld %f15, 0(%r15) # 8-byte Reload
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; CHECK-NEXT: lmg %r6, %r15, 112(%r15)
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; CHECK-NEXT: br %r14
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entry:
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%0 = tail call i32 @llvm.eh.sjlj.setjmp(ptr nonnull @buf)
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ret void
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}
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define void @foo1() "backchain" {
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; CHECK-LABEL: foo1:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: stmg %r6, %r15, 48(%r15)
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; CHECK-NEXT: .cfi_offset %r6, -112
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; CHECK-NEXT: .cfi_offset %r7, -104
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; CHECK-NEXT: .cfi_offset %r8, -96
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; CHECK-NEXT: .cfi_offset %r9, -88
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; CHECK-NEXT: .cfi_offset %r10, -80
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; CHECK-NEXT: .cfi_offset %r11, -72
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; CHECK-NEXT: .cfi_offset %r12, -64
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; CHECK-NEXT: .cfi_offset %r13, -56
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; CHECK-NEXT: .cfi_offset %r14, -48
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; CHECK-NEXT: .cfi_offset %r15, -40
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; CHECK-NEXT: lgr %r1, %r15
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; CHECK-NEXT: aghi %r15, -64
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; CHECK-NEXT: .cfi_def_cfa_offset 224
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; CHECK-NEXT: stg %r1, 0(%r15)
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; CHECK-NEXT: std %f8, 56(%r15) # 8-byte Spill
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; CHECK-NEXT: std %f9, 48(%r15) # 8-byte Spill
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; CHECK-NEXT: std %f10, 40(%r15) # 8-byte Spill
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; CHECK-NEXT: std %f11, 32(%r15) # 8-byte Spill
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; CHECK-NEXT: std %f12, 24(%r15) # 8-byte Spill
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; CHECK-NEXT: std %f13, 16(%r15) # 8-byte Spill
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; CHECK-NEXT: std %f14, 8(%r15) # 8-byte Spill
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; CHECK-NEXT: std %f15, 0(%r15) # 8-byte Spill
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; CHECK-NEXT: .cfi_offset %f8, -168
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; CHECK-NEXT: .cfi_offset %f9, -176
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; CHECK-NEXT: .cfi_offset %f10, -184
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; CHECK-NEXT: .cfi_offset %f11, -192
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; CHECK-NEXT: .cfi_offset %f12, -200
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; CHECK-NEXT: .cfi_offset %f13, -208
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; CHECK-NEXT: .cfi_offset %f14, -216
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; CHECK-NEXT: .cfi_offset %f15, -224
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; CHECK-NEXT: lgrl %r1, buf@GOT
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; CHECK-NEXT: larl %r0, .LBB1_1
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; CHECK-NEXT: stg %r0, 8(%r1)
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; CHECK-NEXT: stg %r15, 24(%r1)
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; CHECK-NEXT: lg %r0, 0(%r15)
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; CHECK-NEXT: stg %r0, 16(%r1)
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; CHECK-NEXT: .LBB1_1: # Block address taken
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; CHECK-NEXT: # %entry
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; CHECK-NEXT: .LBB1_2: # %entry
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; CHECK-NEXT: ld %f8, 56(%r15) # 8-byte Reload
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; CHECK-NEXT: ld %f9, 48(%r15) # 8-byte Reload
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; CHECK-NEXT: ld %f10, 40(%r15) # 8-byte Reload
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; CHECK-NEXT: ld %f11, 32(%r15) # 8-byte Reload
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; CHECK-NEXT: ld %f12, 24(%r15) # 8-byte Reload
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; CHECK-NEXT: ld %f13, 16(%r15) # 8-byte Reload
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; CHECK-NEXT: ld %f14, 8(%r15) # 8-byte Reload
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; CHECK-NEXT: ld %f15, 0(%r15) # 8-byte Reload
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; CHECK-NEXT: lmg %r6, %r15, 112(%r15)
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; CHECK-NEXT: br %r14
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entry:
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%0 = tail call i32 @llvm.eh.sjlj.setjmp(ptr nonnull @buf)
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ret void
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}
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