c9cc782e0b
This patch adds support for PC-relative address materialization using pcadd-class relocations, covering the HI20/LO12 pair and their GOT and TLS variants (IE, LD, GD, and DESC). Link: https://gcc.gnu.org/pipermail/gcc-patches/2025-December/703312.html
108 lines
4.6 KiB
LLVM
108 lines
4.6 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
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; RUN: llc -mtriple=loongarch32-linux-gnu < %s | FileCheck -check-prefix=LINUX32 %s
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; RUN: llc -mtriple=loongarch64-linux-gnu < %s | FileCheck -check-prefix=LINUX64 %s
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; RUN: llc -mtriple=loongarch32-unknown-openbsd < %s | FileCheck -check-prefix=OPENBSD32 %s
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; RUN: llc -mtriple=loongarch64-unknown-openbsd < %s | FileCheck -check-prefix=OPENBSD64 %s
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define void @func() sspreq nounwind {
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; LINUX32-LABEL: func:
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; LINUX32: # %bb.0:
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; LINUX32-NEXT: addi.w $sp, $sp, -16
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; LINUX32-NEXT: st.w $ra, $sp, 12 # 4-byte Folded Spill
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; LINUX32-NEXT: st.w $fp, $sp, 8 # 4-byte Folded Spill
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; LINUX32-NEXT: .Lpcadd_hi0:
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; LINUX32-NEXT: pcaddu12i $fp, %pcadd_hi20(__stack_chk_guard)
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; LINUX32-NEXT: ld.w $a0, $fp, %pcadd_lo12(.Lpcadd_hi0)
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; LINUX32-NEXT: st.w $a0, $sp, 4
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; LINUX32-NEXT: addi.w $a0, $sp, 0
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; LINUX32-NEXT: bl capture
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; LINUX32-NEXT: ld.w $a0, $fp, %pcadd_lo12(.Lpcadd_hi0)
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; LINUX32-NEXT: ld.w $a1, $sp, 4
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; LINUX32-NEXT: bne $a0, $a1, .LBB0_2
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; LINUX32-NEXT: # %bb.1:
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; LINUX32-NEXT: ld.w $fp, $sp, 8 # 4-byte Folded Reload
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; LINUX32-NEXT: ld.w $ra, $sp, 12 # 4-byte Folded Reload
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; LINUX32-NEXT: addi.w $sp, $sp, 16
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; LINUX32-NEXT: ret
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; LINUX32-NEXT: .LBB0_2:
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; LINUX32-NEXT: bl __stack_chk_fail
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;
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; LINUX64-LABEL: func:
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; LINUX64: # %bb.0:
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; LINUX64-NEXT: addi.d $sp, $sp, -32
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; LINUX64-NEXT: st.d $ra, $sp, 24 # 8-byte Folded Spill
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; LINUX64-NEXT: st.d $fp, $sp, 16 # 8-byte Folded Spill
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; LINUX64-NEXT: pcalau12i $fp, %pc_hi20(__stack_chk_guard)
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; LINUX64-NEXT: ld.d $a0, $fp, %pc_lo12(__stack_chk_guard)
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; LINUX64-NEXT: st.d $a0, $sp, 8
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; LINUX64-NEXT: addi.d $a0, $sp, 4
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; LINUX64-NEXT: pcaddu18i $ra, %call36(capture)
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; LINUX64-NEXT: jirl $ra, $ra, 0
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; LINUX64-NEXT: ld.d $a0, $fp, %pc_lo12(__stack_chk_guard)
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; LINUX64-NEXT: ld.d $a1, $sp, 8
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; LINUX64-NEXT: bne $a0, $a1, .LBB0_2
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; LINUX64-NEXT: # %bb.1:
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; LINUX64-NEXT: ld.d $fp, $sp, 16 # 8-byte Folded Reload
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; LINUX64-NEXT: ld.d $ra, $sp, 24 # 8-byte Folded Reload
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; LINUX64-NEXT: addi.d $sp, $sp, 32
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; LINUX64-NEXT: ret
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; LINUX64-NEXT: .LBB0_2:
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; LINUX64-NEXT: pcaddu18i $ra, %call36(__stack_chk_fail)
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; LINUX64-NEXT: jirl $ra, $ra, 0
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;
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; OPENBSD32-LABEL: func:
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; OPENBSD32: # %bb.0:
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; OPENBSD32-NEXT: addi.w $sp, $sp, -16
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; OPENBSD32-NEXT: st.w $ra, $sp, 12 # 4-byte Folded Spill
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; OPENBSD32-NEXT: st.w $fp, $sp, 8 # 4-byte Folded Spill
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; OPENBSD32-NEXT: .Lpcadd_hi0:
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; OPENBSD32-NEXT: pcaddu12i $fp, %pcadd_hi20(__guard_local)
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; OPENBSD32-NEXT: ld.w $a0, $fp, %pcadd_lo12(.Lpcadd_hi0)
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; OPENBSD32-NEXT: st.w $a0, $sp, 4
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; OPENBSD32-NEXT: addi.w $a0, $sp, 0
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; OPENBSD32-NEXT: bl capture
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; OPENBSD32-NEXT: ld.w $a0, $fp, %pcadd_lo12(.Lpcadd_hi0)
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; OPENBSD32-NEXT: ld.w $a1, $sp, 4
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; OPENBSD32-NEXT: bne $a0, $a1, .LBB0_2
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; OPENBSD32-NEXT: # %bb.1: # %SP_return
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; OPENBSD32-NEXT: ld.w $fp, $sp, 8 # 4-byte Folded Reload
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; OPENBSD32-NEXT: ld.w $ra, $sp, 12 # 4-byte Folded Reload
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; OPENBSD32-NEXT: addi.w $sp, $sp, 16
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; OPENBSD32-NEXT: ret
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; OPENBSD32-NEXT: .LBB0_2: # %CallStackCheckFailBlk
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; OPENBSD32-NEXT: .Lpcadd_hi1:
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; OPENBSD32-NEXT: pcaddu12i $a0, %pcadd_hi20(.LSSH)
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; OPENBSD32-NEXT: addi.w $a0, $a0, %pcadd_lo12(.Lpcadd_hi1)
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; OPENBSD32-NEXT: bl __stack_smash_handler
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;
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; OPENBSD64-LABEL: func:
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; OPENBSD64: # %bb.0:
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; OPENBSD64-NEXT: addi.d $sp, $sp, -32
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; OPENBSD64-NEXT: st.d $ra, $sp, 24 # 8-byte Folded Spill
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; OPENBSD64-NEXT: st.d $fp, $sp, 16 # 8-byte Folded Spill
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; OPENBSD64-NEXT: pcalau12i $fp, %pc_hi20(__guard_local)
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; OPENBSD64-NEXT: ld.d $a0, $fp, %pc_lo12(__guard_local)
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; OPENBSD64-NEXT: st.d $a0, $sp, 8
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; OPENBSD64-NEXT: addi.d $a0, $sp, 4
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; OPENBSD64-NEXT: pcaddu18i $ra, %call36(capture)
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; OPENBSD64-NEXT: jirl $ra, $ra, 0
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; OPENBSD64-NEXT: ld.d $a0, $fp, %pc_lo12(__guard_local)
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; OPENBSD64-NEXT: ld.d $a1, $sp, 8
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; OPENBSD64-NEXT: bne $a0, $a1, .LBB0_2
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; OPENBSD64-NEXT: # %bb.1: # %SP_return
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; OPENBSD64-NEXT: ld.d $fp, $sp, 16 # 8-byte Folded Reload
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; OPENBSD64-NEXT: ld.d $ra, $sp, 24 # 8-byte Folded Reload
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; OPENBSD64-NEXT: addi.d $sp, $sp, 32
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; OPENBSD64-NEXT: ret
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; OPENBSD64-NEXT: .LBB0_2: # %CallStackCheckFailBlk
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; OPENBSD64-NEXT: pcalau12i $a0, %pc_hi20(.LSSH)
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; OPENBSD64-NEXT: addi.d $a0, $a0, %pc_lo12(.LSSH)
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; OPENBSD64-NEXT: pcaddu18i $ra, %call36(__stack_smash_handler)
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; OPENBSD64-NEXT: jirl $ra, $ra, 0
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%alloca = alloca i32, align 4
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call void @capture(ptr %alloca)
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ret void
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}
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declare void @capture(ptr)
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