derek.holloway
7502bf64a4
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266 lines
9.5 KiB
LLVM
266 lines
9.5 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc --mtriple=loongarch32 -mattr=-32s,+d --verify-machineinstrs < %s \
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; RUN: | FileCheck %s --check-prefix=LA32R
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; RUN: llc --mtriple=loongarch32 -mattr=+32s,+d --verify-machineinstrs < %s \
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; RUN: | FileCheck %s --check-prefix=LA32S
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; RUN: llc --mtriple=loongarch64 -mattr=+d --verify-machineinstrs < %s \
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; RUN: | FileCheck %s --check-prefix=LA64
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declare void @notdead(ptr)
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;; These tests must ensure the stack pointer is restored using the frame
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;; pointer
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define void @simple_alloca(i32 %n) nounwind {
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; LA32R-LABEL: simple_alloca:
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; LA32R: # %bb.0:
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; LA32R-NEXT: addi.w $sp, $sp, -16
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; LA32R-NEXT: st.w $ra, $sp, 12 # 4-byte Folded Spill
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; LA32R-NEXT: st.w $fp, $sp, 8 # 4-byte Folded Spill
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; LA32R-NEXT: addi.w $fp, $sp, 16
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; LA32R-NEXT: addi.w $a0, $a0, 15
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; LA32R-NEXT: addi.w $a1, $zero, -16
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; LA32R-NEXT: and $a0, $a0, $a1
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; LA32R-NEXT: sub.w $a0, $sp, $a0
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; LA32R-NEXT: move $sp, $a0
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; LA32R-NEXT: bl notdead
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; LA32R-NEXT: addi.w $sp, $fp, -16
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; LA32R-NEXT: ld.w $fp, $sp, 8 # 4-byte Folded Reload
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; LA32R-NEXT: ld.w $ra, $sp, 12 # 4-byte Folded Reload
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; LA32R-NEXT: addi.w $sp, $sp, 16
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; LA32R-NEXT: ret
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;
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; LA32S-LABEL: simple_alloca:
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; LA32S: # %bb.0:
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; LA32S-NEXT: addi.w $sp, $sp, -16
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; LA32S-NEXT: st.w $ra, $sp, 12 # 4-byte Folded Spill
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; LA32S-NEXT: st.w $fp, $sp, 8 # 4-byte Folded Spill
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; LA32S-NEXT: addi.w $fp, $sp, 16
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; LA32S-NEXT: addi.w $a0, $a0, 15
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; LA32S-NEXT: bstrins.w $a0, $zero, 3, 0
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; LA32S-NEXT: sub.w $a0, $sp, $a0
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; LA32S-NEXT: move $sp, $a0
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; LA32S-NEXT: bl notdead
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; LA32S-NEXT: addi.w $sp, $fp, -16
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; LA32S-NEXT: ld.w $fp, $sp, 8 # 4-byte Folded Reload
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; LA32S-NEXT: ld.w $ra, $sp, 12 # 4-byte Folded Reload
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; LA32S-NEXT: addi.w $sp, $sp, 16
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; LA32S-NEXT: ret
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;
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; LA64-LABEL: simple_alloca:
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; LA64: # %bb.0:
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; LA64-NEXT: addi.d $sp, $sp, -16
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; LA64-NEXT: st.d $ra, $sp, 8 # 8-byte Folded Spill
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; LA64-NEXT: st.d $fp, $sp, 0 # 8-byte Folded Spill
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; LA64-NEXT: addi.d $fp, $sp, 16
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; LA64-NEXT: bstrpick.d $a0, $a0, 31, 0
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; LA64-NEXT: addi.d $a0, $a0, 15
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; LA64-NEXT: bstrpick.d $a0, $a0, 32, 4
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; LA64-NEXT: slli.d $a0, $a0, 4
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; LA64-NEXT: sub.d $a0, $sp, $a0
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; LA64-NEXT: move $sp, $a0
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; LA64-NEXT: pcaddu18i $ra, %call36(notdead)
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; LA64-NEXT: jirl $ra, $ra, 0
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; LA64-NEXT: addi.d $sp, $fp, -16
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; LA64-NEXT: ld.d $fp, $sp, 0 # 8-byte Folded Reload
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; LA64-NEXT: ld.d $ra, $sp, 8 # 8-byte Folded Reload
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; LA64-NEXT: addi.d $sp, $sp, 16
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; LA64-NEXT: ret
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%1 = alloca i8, i32 %n
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call void @notdead(ptr %1)
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ret void
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}
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declare ptr @llvm.stacksave()
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declare void @llvm.stackrestore(ptr)
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define void @scoped_alloca(i32 %n) nounwind {
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; LA32R-LABEL: scoped_alloca:
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; LA32R: # %bb.0:
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; LA32R-NEXT: addi.w $sp, $sp, -16
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; LA32R-NEXT: st.w $ra, $sp, 12 # 4-byte Folded Spill
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; LA32R-NEXT: st.w $fp, $sp, 8 # 4-byte Folded Spill
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; LA32R-NEXT: st.w $s0, $sp, 4 # 4-byte Folded Spill
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; LA32R-NEXT: addi.w $fp, $sp, 16
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; LA32R-NEXT: move $s0, $sp
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; LA32R-NEXT: addi.w $a0, $a0, 15
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; LA32R-NEXT: addi.w $a1, $zero, -16
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; LA32R-NEXT: and $a0, $a0, $a1
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; LA32R-NEXT: sub.w $a0, $sp, $a0
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; LA32R-NEXT: move $sp, $a0
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; LA32R-NEXT: bl notdead
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; LA32R-NEXT: move $sp, $s0
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; LA32R-NEXT: addi.w $sp, $fp, -16
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; LA32R-NEXT: ld.w $s0, $sp, 4 # 4-byte Folded Reload
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; LA32R-NEXT: ld.w $fp, $sp, 8 # 4-byte Folded Reload
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; LA32R-NEXT: ld.w $ra, $sp, 12 # 4-byte Folded Reload
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; LA32R-NEXT: addi.w $sp, $sp, 16
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; LA32R-NEXT: ret
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;
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; LA32S-LABEL: scoped_alloca:
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; LA32S: # %bb.0:
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; LA32S-NEXT: addi.w $sp, $sp, -16
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; LA32S-NEXT: st.w $ra, $sp, 12 # 4-byte Folded Spill
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; LA32S-NEXT: st.w $fp, $sp, 8 # 4-byte Folded Spill
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; LA32S-NEXT: st.w $s0, $sp, 4 # 4-byte Folded Spill
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; LA32S-NEXT: addi.w $fp, $sp, 16
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; LA32S-NEXT: move $s0, $sp
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; LA32S-NEXT: addi.w $a0, $a0, 15
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; LA32S-NEXT: bstrins.w $a0, $zero, 3, 0
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; LA32S-NEXT: sub.w $a0, $sp, $a0
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; LA32S-NEXT: move $sp, $a0
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; LA32S-NEXT: bl notdead
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; LA32S-NEXT: move $sp, $s0
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; LA32S-NEXT: addi.w $sp, $fp, -16
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; LA32S-NEXT: ld.w $s0, $sp, 4 # 4-byte Folded Reload
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; LA32S-NEXT: ld.w $fp, $sp, 8 # 4-byte Folded Reload
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; LA32S-NEXT: ld.w $ra, $sp, 12 # 4-byte Folded Reload
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; LA32S-NEXT: addi.w $sp, $sp, 16
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; LA32S-NEXT: ret
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;
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; LA64-LABEL: scoped_alloca:
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; LA64: # %bb.0:
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; LA64-NEXT: addi.d $sp, $sp, -32
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; LA64-NEXT: st.d $ra, $sp, 24 # 8-byte Folded Spill
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; LA64-NEXT: st.d $fp, $sp, 16 # 8-byte Folded Spill
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; LA64-NEXT: st.d $s0, $sp, 8 # 8-byte Folded Spill
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; LA64-NEXT: addi.d $fp, $sp, 32
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; LA64-NEXT: move $s0, $sp
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; LA64-NEXT: bstrpick.d $a0, $a0, 31, 0
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; LA64-NEXT: addi.d $a0, $a0, 15
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; LA64-NEXT: bstrpick.d $a0, $a0, 32, 4
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; LA64-NEXT: slli.d $a0, $a0, 4
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; LA64-NEXT: sub.d $a0, $sp, $a0
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; LA64-NEXT: move $sp, $a0
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; LA64-NEXT: pcaddu18i $ra, %call36(notdead)
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; LA64-NEXT: jirl $ra, $ra, 0
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; LA64-NEXT: move $sp, $s0
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; LA64-NEXT: addi.d $sp, $fp, -32
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; LA64-NEXT: ld.d $s0, $sp, 8 # 8-byte Folded Reload
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; LA64-NEXT: ld.d $fp, $sp, 16 # 8-byte Folded Reload
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; LA64-NEXT: ld.d $ra, $sp, 24 # 8-byte Folded Reload
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; LA64-NEXT: addi.d $sp, $sp, 32
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; LA64-NEXT: ret
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%sp = call ptr @llvm.stacksave()
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%addr = alloca i8, i32 %n
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call void @notdead(ptr %addr)
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call void @llvm.stackrestore(ptr %sp)
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ret void
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}
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declare void @func(ptr, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32)
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;; Check that outgoing arguments passed on the stack do not corrupt a
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;; variable-sized stack object.
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define void @alloca_callframe(i32 %n) nounwind {
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; LA32R-LABEL: alloca_callframe:
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; LA32R: # %bb.0:
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; LA32R-NEXT: addi.w $sp, $sp, -16
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; LA32R-NEXT: st.w $ra, $sp, 12 # 4-byte Folded Spill
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; LA32R-NEXT: st.w $fp, $sp, 8 # 4-byte Folded Spill
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; LA32R-NEXT: addi.w $fp, $sp, 16
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; LA32R-NEXT: addi.w $a0, $a0, 15
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; LA32R-NEXT: addi.w $a1, $zero, -16
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; LA32R-NEXT: and $a0, $a0, $a1
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; LA32R-NEXT: sub.w $a0, $sp, $a0
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; LA32R-NEXT: move $sp, $a0
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; LA32R-NEXT: addi.w $sp, $sp, -16
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; LA32R-NEXT: ori $a1, $zero, 12
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; LA32R-NEXT: st.w $a1, $sp, 12
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; LA32R-NEXT: ori $a1, $zero, 11
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; LA32R-NEXT: st.w $a1, $sp, 8
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; LA32R-NEXT: ori $a1, $zero, 10
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; LA32R-NEXT: st.w $a1, $sp, 4
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; LA32R-NEXT: ori $t0, $zero, 9
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; LA32R-NEXT: ori $a1, $zero, 2
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; LA32R-NEXT: ori $a2, $zero, 3
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; LA32R-NEXT: ori $a3, $zero, 4
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; LA32R-NEXT: ori $a4, $zero, 5
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; LA32R-NEXT: ori $a5, $zero, 6
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; LA32R-NEXT: ori $a6, $zero, 7
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; LA32R-NEXT: ori $a7, $zero, 8
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; LA32R-NEXT: st.w $t0, $sp, 0
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; LA32R-NEXT: bl func
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; LA32R-NEXT: addi.w $sp, $sp, 16
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; LA32R-NEXT: addi.w $sp, $fp, -16
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; LA32R-NEXT: ld.w $fp, $sp, 8 # 4-byte Folded Reload
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; LA32R-NEXT: ld.w $ra, $sp, 12 # 4-byte Folded Reload
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; LA32R-NEXT: addi.w $sp, $sp, 16
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; LA32R-NEXT: ret
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;
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; LA32S-LABEL: alloca_callframe:
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; LA32S: # %bb.0:
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; LA32S-NEXT: addi.w $sp, $sp, -16
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; LA32S-NEXT: st.w $ra, $sp, 12 # 4-byte Folded Spill
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; LA32S-NEXT: st.w $fp, $sp, 8 # 4-byte Folded Spill
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; LA32S-NEXT: addi.w $fp, $sp, 16
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; LA32S-NEXT: addi.w $a0, $a0, 15
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; LA32S-NEXT: bstrins.w $a0, $zero, 3, 0
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; LA32S-NEXT: sub.w $a0, $sp, $a0
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; LA32S-NEXT: move $sp, $a0
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; LA32S-NEXT: addi.w $sp, $sp, -16
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; LA32S-NEXT: ori $a1, $zero, 12
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; LA32S-NEXT: st.w $a1, $sp, 12
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; LA32S-NEXT: ori $a1, $zero, 11
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; LA32S-NEXT: st.w $a1, $sp, 8
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; LA32S-NEXT: ori $a1, $zero, 10
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; LA32S-NEXT: st.w $a1, $sp, 4
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; LA32S-NEXT: ori $t0, $zero, 9
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; LA32S-NEXT: ori $a1, $zero, 2
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; LA32S-NEXT: ori $a2, $zero, 3
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; LA32S-NEXT: ori $a3, $zero, 4
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; LA32S-NEXT: ori $a4, $zero, 5
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; LA32S-NEXT: ori $a5, $zero, 6
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; LA32S-NEXT: ori $a6, $zero, 7
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; LA32S-NEXT: ori $a7, $zero, 8
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; LA32S-NEXT: st.w $t0, $sp, 0
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; LA32S-NEXT: bl func
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; LA32S-NEXT: addi.w $sp, $sp, 16
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; LA32S-NEXT: addi.w $sp, $fp, -16
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; LA32S-NEXT: ld.w $fp, $sp, 8 # 4-byte Folded Reload
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; LA32S-NEXT: ld.w $ra, $sp, 12 # 4-byte Folded Reload
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; LA32S-NEXT: addi.w $sp, $sp, 16
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; LA32S-NEXT: ret
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;
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; LA64-LABEL: alloca_callframe:
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; LA64: # %bb.0:
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; LA64-NEXT: addi.d $sp, $sp, -16
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; LA64-NEXT: st.d $ra, $sp, 8 # 8-byte Folded Spill
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; LA64-NEXT: st.d $fp, $sp, 0 # 8-byte Folded Spill
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; LA64-NEXT: addi.d $fp, $sp, 16
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; LA64-NEXT: bstrpick.d $a0, $a0, 31, 0
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; LA64-NEXT: addi.d $a0, $a0, 15
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; LA64-NEXT: bstrpick.d $a0, $a0, 32, 4
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; LA64-NEXT: slli.d $a0, $a0, 4
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; LA64-NEXT: sub.d $a0, $sp, $a0
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; LA64-NEXT: move $sp, $a0
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; LA64-NEXT: addi.d $sp, $sp, -32
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; LA64-NEXT: ori $a1, $zero, 12
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; LA64-NEXT: st.d $a1, $sp, 24
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; LA64-NEXT: ori $a1, $zero, 11
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; LA64-NEXT: st.d $a1, $sp, 16
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; LA64-NEXT: ori $a1, $zero, 10
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; LA64-NEXT: st.d $a1, $sp, 8
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; LA64-NEXT: ori $t0, $zero, 9
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; LA64-NEXT: ori $a1, $zero, 2
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; LA64-NEXT: ori $a2, $zero, 3
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; LA64-NEXT: ori $a3, $zero, 4
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; LA64-NEXT: ori $a4, $zero, 5
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; LA64-NEXT: ori $a5, $zero, 6
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; LA64-NEXT: ori $a6, $zero, 7
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; LA64-NEXT: ori $a7, $zero, 8
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; LA64-NEXT: st.d $t0, $sp, 0
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; LA64-NEXT: pcaddu18i $ra, %call36(func)
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; LA64-NEXT: jirl $ra, $ra, 0
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; LA64-NEXT: addi.d $sp, $sp, 32
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; LA64-NEXT: addi.d $sp, $fp, -16
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; LA64-NEXT: ld.d $fp, $sp, 0 # 8-byte Folded Reload
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; LA64-NEXT: ld.d $ra, $sp, 8 # 8-byte Folded Reload
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; LA64-NEXT: addi.d $sp, $sp, 16
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; LA64-NEXT: ret
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%1 = alloca i8, i32 %n
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call void @func(ptr %1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8,
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i32 9, i32 10, i32 11, i32 12)
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ret void
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}
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