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clang-p2996/llvm/test/CodeGen/M68k/Atomics/rmw.ll
Peter Lafreniere ebbc5de7db [M68k] Correctly emit non-pic relocations (#89863) 
The m68k backend will always emit external calls (including libcalls)
with
PC-relative PLT relocations, even when in non-pic mode or -fno-plt is
used.

This is unexpected, as other function calls are emitted with absolute
addressing, and a static code modes suggests that there is no PLT. It
also
leads to a miscompilation where the call instruction emitted expects an
immediate address, while the relocation emitted for that instruction is
PC-relative.

This miscompilation can even be seen in the default C function in
godbolt:
https://godbolt.org/z/zEoazovzo

Fix the issue by classifying external function references based upon the
pic
mode. This triggers a change in the static code model, making it more in
line
with the expected behaviour and allowing use of this backend in more
bare-metal
situations where a PLT does not exist.

The change avoids the issue where we emit a PLT32 relocation for an
absolute
call, and makes libcalls and other external calls use absolute
addressing modes
when a static code model is desired.

Further work should be done in instruction lowering and validation to
ensure
that miscompilations of the same type don't occur.
2024-05-03 23:14:56 +08:00

591 lines
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LLVM
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc %s -o - -mtriple=m68k -mcpu=M68000 -verify-machineinstrs | FileCheck %s --check-prefix=NO-ATOMIC
; RUN: llc %s -o - -mtriple=m68k -mcpu=M68010 -verify-machineinstrs | FileCheck %s --check-prefix=NO-ATOMIC
; RUN: llc %s -o - -mtriple=m68k -mcpu=M68020 -verify-machineinstrs | FileCheck %s --check-prefix=ATOMIC
; RUN: llc %s -o - -mtriple=m68k -mcpu=M68030 -verify-machineinstrs | FileCheck %s --check-prefix=ATOMIC
; RUN: llc %s -o - -mtriple=m68k -mcpu=M68040 -verify-machineinstrs | FileCheck %s --check-prefix=ATOMIC
define i8 @atomicrmw_add_i8(i8 %val, ptr %ptr) {
; NO-ATOMIC-LABEL: atomicrmw_add_i8:
; NO-ATOMIC: .cfi_startproc
; NO-ATOMIC-NEXT: ; %bb.0:
; NO-ATOMIC-NEXT: suba.l #12, %sp
; NO-ATOMIC-NEXT: .cfi_def_cfa_offset -16
; NO-ATOMIC-NEXT: move.b (19,%sp), %d0
; NO-ATOMIC-NEXT: and.l #255, %d0
; NO-ATOMIC-NEXT: move.l %d0, (4,%sp)
; NO-ATOMIC-NEXT: move.l (20,%sp), (%sp)
; NO-ATOMIC-NEXT: jsr __sync_fetch_and_add_1
; NO-ATOMIC-NEXT: adda.l #12, %sp
; NO-ATOMIC-NEXT: rts
;
; ATOMIC-LABEL: atomicrmw_add_i8:
; ATOMIC: .cfi_startproc
; ATOMIC-NEXT: ; %bb.0:
; ATOMIC-NEXT: suba.l #8, %sp
; ATOMIC-NEXT: .cfi_def_cfa_offset -12
; ATOMIC-NEXT: movem.l %d2-%d3, (0,%sp) ; 12-byte Folded Spill
; ATOMIC-NEXT: move.b (15,%sp), %d1
; ATOMIC-NEXT: move.l (16,%sp), %a0
; ATOMIC-NEXT: move.b (%a0), %d2
; ATOMIC-NEXT: move.b %d2, %d0
; ATOMIC-NEXT: .LBB0_1: ; %atomicrmw.start
; ATOMIC-NEXT: ; =>This Inner Loop Header: Depth=1
; ATOMIC-NEXT: move.b %d2, %d3
; ATOMIC-NEXT: add.b %d1, %d3
; ATOMIC-NEXT: cas.b %d0, %d3, (%a0)
; ATOMIC-NEXT: move.b %d0, %d3
; ATOMIC-NEXT: sub.b %d2, %d3
; ATOMIC-NEXT: seq %d2
; ATOMIC-NEXT: sub.b #1, %d2
; ATOMIC-NEXT: move.b %d0, %d2
; ATOMIC-NEXT: bne .LBB0_1
; ATOMIC-NEXT: ; %bb.2: ; %atomicrmw.end
; ATOMIC-NEXT: movem.l (0,%sp), %d2-%d3 ; 12-byte Folded Reload
; ATOMIC-NEXT: adda.l #8, %sp
; ATOMIC-NEXT: rts
%old = atomicrmw add ptr %ptr, i8 %val monotonic
ret i8 %old
}
define i16 @atomicrmw_sub_i16(i16 %val, ptr %ptr) {
; NO-ATOMIC-LABEL: atomicrmw_sub_i16:
; NO-ATOMIC: .cfi_startproc
; NO-ATOMIC-NEXT: ; %bb.0:
; NO-ATOMIC-NEXT: suba.l #12, %sp
; NO-ATOMIC-NEXT: .cfi_def_cfa_offset -16
; NO-ATOMIC-NEXT: move.w (18,%sp), %d0
; NO-ATOMIC-NEXT: and.l #65535, %d0
; NO-ATOMIC-NEXT: move.l %d0, (4,%sp)
; NO-ATOMIC-NEXT: move.l (20,%sp), (%sp)
; NO-ATOMIC-NEXT: jsr __sync_fetch_and_sub_2
; NO-ATOMIC-NEXT: adda.l #12, %sp
; NO-ATOMIC-NEXT: rts
;
; ATOMIC-LABEL: atomicrmw_sub_i16:
; ATOMIC: .cfi_startproc
; ATOMIC-NEXT: ; %bb.0:
; ATOMIC-NEXT: suba.l #8, %sp
; ATOMIC-NEXT: .cfi_def_cfa_offset -12
; ATOMIC-NEXT: movem.l %d2-%d3, (0,%sp) ; 12-byte Folded Spill
; ATOMIC-NEXT: move.w (14,%sp), %d1
; ATOMIC-NEXT: move.l (16,%sp), %a0
; ATOMIC-NEXT: move.w (%a0), %d2
; ATOMIC-NEXT: move.w %d2, %d0
; ATOMIC-NEXT: .LBB1_1: ; %atomicrmw.start
; ATOMIC-NEXT: ; =>This Inner Loop Header: Depth=1
; ATOMIC-NEXT: move.w %d2, %d3
; ATOMIC-NEXT: sub.w %d1, %d3
; ATOMIC-NEXT: cas.w %d0, %d3, (%a0)
; ATOMIC-NEXT: move.w %d0, %d3
; ATOMIC-NEXT: sub.w %d2, %d3
; ATOMIC-NEXT: seq %d2
; ATOMIC-NEXT: sub.b #1, %d2
; ATOMIC-NEXT: move.w %d0, %d2
; ATOMIC-NEXT: bne .LBB1_1
; ATOMIC-NEXT: ; %bb.2: ; %atomicrmw.end
; ATOMIC-NEXT: movem.l (0,%sp), %d2-%d3 ; 12-byte Folded Reload
; ATOMIC-NEXT: adda.l #8, %sp
; ATOMIC-NEXT: rts
%old = atomicrmw sub ptr %ptr, i16 %val acquire
ret i16 %old
}
define i32 @atomicrmw_and_i32(i32 %val, ptr %ptr) {
; NO-ATOMIC-LABEL: atomicrmw_and_i32:
; NO-ATOMIC: .cfi_startproc
; NO-ATOMIC-NEXT: ; %bb.0:
; NO-ATOMIC-NEXT: suba.l #12, %sp
; NO-ATOMIC-NEXT: .cfi_def_cfa_offset -16
; NO-ATOMIC-NEXT: move.l (16,%sp), (4,%sp)
; NO-ATOMIC-NEXT: move.l (20,%sp), (%sp)
; NO-ATOMIC-NEXT: jsr __sync_fetch_and_and_4
; NO-ATOMIC-NEXT: adda.l #12, %sp
; NO-ATOMIC-NEXT: rts
;
; ATOMIC-LABEL: atomicrmw_and_i32:
; ATOMIC: .cfi_startproc
; ATOMIC-NEXT: ; %bb.0:
; ATOMIC-NEXT: suba.l #8, %sp
; ATOMIC-NEXT: .cfi_def_cfa_offset -12
; ATOMIC-NEXT: movem.l %d2-%d3, (0,%sp) ; 12-byte Folded Spill
; ATOMIC-NEXT: move.l (12,%sp), %d1
; ATOMIC-NEXT: move.l (16,%sp), %a0
; ATOMIC-NEXT: move.l (%a0), %d2
; ATOMIC-NEXT: move.l %d2, %d0
; ATOMIC-NEXT: .LBB2_1: ; %atomicrmw.start
; ATOMIC-NEXT: ; =>This Inner Loop Header: Depth=1
; ATOMIC-NEXT: move.l %d2, %d3
; ATOMIC-NEXT: and.l %d1, %d3
; ATOMIC-NEXT: cas.l %d0, %d3, (%a0)
; ATOMIC-NEXT: move.l %d0, %d3
; ATOMIC-NEXT: sub.l %d2, %d3
; ATOMIC-NEXT: seq %d2
; ATOMIC-NEXT: sub.b #1, %d2
; ATOMIC-NEXT: move.l %d0, %d2
; ATOMIC-NEXT: bne .LBB2_1
; ATOMIC-NEXT: ; %bb.2: ; %atomicrmw.end
; ATOMIC-NEXT: movem.l (0,%sp), %d2-%d3 ; 12-byte Folded Reload
; ATOMIC-NEXT: adda.l #8, %sp
; ATOMIC-NEXT: rts
%old = atomicrmw and ptr %ptr, i32 %val seq_cst
ret i32 %old
}
define i64 @atomicrmw_xor_i64(i64 %val, ptr %ptr) {
; NO-ATOMIC-LABEL: atomicrmw_xor_i64:
; NO-ATOMIC: .cfi_startproc
; NO-ATOMIC-NEXT: ; %bb.0:
; NO-ATOMIC-NEXT: suba.l #20, %sp
; NO-ATOMIC-NEXT: .cfi_def_cfa_offset -24
; NO-ATOMIC-NEXT: move.l #3, (12,%sp)
; NO-ATOMIC-NEXT: move.l (28,%sp), (8,%sp)
; NO-ATOMIC-NEXT: move.l (24,%sp), (4,%sp)
; NO-ATOMIC-NEXT: move.l (32,%sp), (%sp)
; NO-ATOMIC-NEXT: jsr __atomic_fetch_xor_8
; NO-ATOMIC-NEXT: adda.l #20, %sp
; NO-ATOMIC-NEXT: rts
;
; ATOMIC-LABEL: atomicrmw_xor_i64:
; ATOMIC: .cfi_startproc
; ATOMIC-NEXT: ; %bb.0:
; ATOMIC-NEXT: suba.l #20, %sp
; ATOMIC-NEXT: .cfi_def_cfa_offset -24
; ATOMIC-NEXT: move.l #3, (12,%sp)
; ATOMIC-NEXT: move.l (28,%sp), (8,%sp)
; ATOMIC-NEXT: move.l (24,%sp), (4,%sp)
; ATOMIC-NEXT: move.l (32,%sp), (%sp)
; ATOMIC-NEXT: jsr __atomic_fetch_xor_8
; ATOMIC-NEXT: adda.l #20, %sp
; ATOMIC-NEXT: rts
%old = atomicrmw xor ptr %ptr, i64 %val release
ret i64 %old
}
define i8 @atomicrmw_or_i8(i8 %val, ptr %ptr) {
; NO-ATOMIC-LABEL: atomicrmw_or_i8:
; NO-ATOMIC: .cfi_startproc
; NO-ATOMIC-NEXT: ; %bb.0:
; NO-ATOMIC-NEXT: suba.l #12, %sp
; NO-ATOMIC-NEXT: .cfi_def_cfa_offset -16
; NO-ATOMIC-NEXT: move.b (19,%sp), %d0
; NO-ATOMIC-NEXT: and.l #255, %d0
; NO-ATOMIC-NEXT: move.l %d0, (4,%sp)
; NO-ATOMIC-NEXT: move.l (20,%sp), (%sp)
; NO-ATOMIC-NEXT: jsr __sync_fetch_and_or_1
; NO-ATOMIC-NEXT: adda.l #12, %sp
; NO-ATOMIC-NEXT: rts
;
; ATOMIC-LABEL: atomicrmw_or_i8:
; ATOMIC: .cfi_startproc
; ATOMIC-NEXT: ; %bb.0:
; ATOMIC-NEXT: suba.l #8, %sp
; ATOMIC-NEXT: .cfi_def_cfa_offset -12
; ATOMIC-NEXT: movem.l %d2-%d3, (0,%sp) ; 12-byte Folded Spill
; ATOMIC-NEXT: move.b (15,%sp), %d1
; ATOMIC-NEXT: move.l (16,%sp), %a0
; ATOMIC-NEXT: move.b (%a0), %d2
; ATOMIC-NEXT: move.b %d2, %d0
; ATOMIC-NEXT: .LBB4_1: ; %atomicrmw.start
; ATOMIC-NEXT: ; =>This Inner Loop Header: Depth=1
; ATOMIC-NEXT: move.b %d2, %d3
; ATOMIC-NEXT: or.b %d1, %d3
; ATOMIC-NEXT: cas.b %d0, %d3, (%a0)
; ATOMIC-NEXT: move.b %d0, %d3
; ATOMIC-NEXT: sub.b %d2, %d3
; ATOMIC-NEXT: seq %d2
; ATOMIC-NEXT: sub.b #1, %d2
; ATOMIC-NEXT: move.b %d0, %d2
; ATOMIC-NEXT: bne .LBB4_1
; ATOMIC-NEXT: ; %bb.2: ; %atomicrmw.end
; ATOMIC-NEXT: movem.l (0,%sp), %d2-%d3 ; 12-byte Folded Reload
; ATOMIC-NEXT: adda.l #8, %sp
; ATOMIC-NEXT: rts
%old = atomicrmw or ptr %ptr, i8 %val monotonic
ret i8 %old
}
define i16 @atmoicrmw_nand_i16(i16 %val, ptr %ptr) {
; NO-ATOMIC-LABEL: atmoicrmw_nand_i16:
; NO-ATOMIC: .cfi_startproc
; NO-ATOMIC-NEXT: ; %bb.0:
; NO-ATOMIC-NEXT: suba.l #12, %sp
; NO-ATOMIC-NEXT: .cfi_def_cfa_offset -16
; NO-ATOMIC-NEXT: movem.l %d2, (8,%sp) ; 8-byte Folded Spill
; NO-ATOMIC-NEXT: move.w (18,%sp), %d2
; NO-ATOMIC-NEXT: move.l %d2, %d0
; NO-ATOMIC-NEXT: and.l #65535, %d0
; NO-ATOMIC-NEXT: move.l %d0, (4,%sp)
; NO-ATOMIC-NEXT: move.l (20,%sp), (%sp)
; NO-ATOMIC-NEXT: jsr __sync_fetch_and_nand_2
; NO-ATOMIC-NEXT: move.w %d2, %d0
; NO-ATOMIC-NEXT: movem.l (8,%sp), %d2 ; 8-byte Folded Reload
; NO-ATOMIC-NEXT: adda.l #12, %sp
; NO-ATOMIC-NEXT: rts
;
; ATOMIC-LABEL: atmoicrmw_nand_i16:
; ATOMIC: .cfi_startproc
; ATOMIC-NEXT: ; %bb.0:
; ATOMIC-NEXT: suba.l #8, %sp
; ATOMIC-NEXT: .cfi_def_cfa_offset -12
; ATOMIC-NEXT: movem.l %d2-%d3, (0,%sp) ; 12-byte Folded Spill
; ATOMIC-NEXT: move.w (14,%sp), %d0
; ATOMIC-NEXT: move.l (16,%sp), %a0
; ATOMIC-NEXT: move.w (%a0), %d2
; ATOMIC-NEXT: move.w %d2, %d1
; ATOMIC-NEXT: .LBB5_1: ; %atomicrmw.start
; ATOMIC-NEXT: ; =>This Inner Loop Header: Depth=1
; ATOMIC-NEXT: move.w %d2, %d3
; ATOMIC-NEXT: and.w %d0, %d3
; ATOMIC-NEXT: not.w %d3
; ATOMIC-NEXT: cas.w %d1, %d3, (%a0)
; ATOMIC-NEXT: move.w %d1, %d3
; ATOMIC-NEXT: sub.w %d2, %d3
; ATOMIC-NEXT: seq %d2
; ATOMIC-NEXT: sub.b #1, %d2
; ATOMIC-NEXT: move.w %d1, %d2
; ATOMIC-NEXT: bne .LBB5_1
; ATOMIC-NEXT: ; %bb.2: ; %atomicrmw.end
; ATOMIC-NEXT: movem.l (0,%sp), %d2-%d3 ; 12-byte Folded Reload
; ATOMIC-NEXT: adda.l #8, %sp
; ATOMIC-NEXT: rts
%old = atomicrmw nand ptr %ptr, i16 %val seq_cst
ret i16 %val
}
define i32 @atomicrmw_min_i32(i32 %val, ptr %ptr) {
; NO-ATOMIC-LABEL: atomicrmw_min_i32:
; NO-ATOMIC: .cfi_startproc
; NO-ATOMIC-NEXT: ; %bb.0:
; NO-ATOMIC-NEXT: suba.l #12, %sp
; NO-ATOMIC-NEXT: .cfi_def_cfa_offset -16
; NO-ATOMIC-NEXT: move.l (16,%sp), (4,%sp)
; NO-ATOMIC-NEXT: move.l (20,%sp), (%sp)
; NO-ATOMIC-NEXT: jsr __sync_fetch_and_min_4
; NO-ATOMIC-NEXT: adda.l #12, %sp
; NO-ATOMIC-NEXT: rts
;
; ATOMIC-LABEL: atomicrmw_min_i32:
; ATOMIC: .cfi_startproc
; ATOMIC-NEXT: ; %bb.0:
; ATOMIC-NEXT: suba.l #8, %sp
; ATOMIC-NEXT: .cfi_def_cfa_offset -12
; ATOMIC-NEXT: movem.l %d2-%d3, (0,%sp) ; 12-byte Folded Spill
; ATOMIC-NEXT: move.l (12,%sp), %d1
; ATOMIC-NEXT: move.l (16,%sp), %a0
; ATOMIC-NEXT: move.l (%a0), %d2
; ATOMIC-NEXT: bra .LBB6_1
; ATOMIC-NEXT: .LBB6_3: ; %atomicrmw.start
; ATOMIC-NEXT: ; in Loop: Header=BB6_1 Depth=1
; ATOMIC-NEXT: move.l %d2, %d0
; ATOMIC-NEXT: cas.l %d0, %d3, (%a0)
; ATOMIC-NEXT: move.l %d0, %d3
; ATOMIC-NEXT: sub.l %d2, %d3
; ATOMIC-NEXT: seq %d2
; ATOMIC-NEXT: sub.b #1, %d2
; ATOMIC-NEXT: move.l %d0, %d2
; ATOMIC-NEXT: beq .LBB6_4
; ATOMIC-NEXT: .LBB6_1: ; %atomicrmw.start
; ATOMIC-NEXT: ; =>This Inner Loop Header: Depth=1
; ATOMIC-NEXT: move.l %d2, %d0
; ATOMIC-NEXT: sub.l %d1, %d0
; ATOMIC-NEXT: move.l %d2, %d3
; ATOMIC-NEXT: ble .LBB6_3
; ATOMIC-NEXT: ; %bb.2: ; %atomicrmw.start
; ATOMIC-NEXT: ; in Loop: Header=BB6_1 Depth=1
; ATOMIC-NEXT: move.l %d1, %d3
; ATOMIC-NEXT: bra .LBB6_3
; ATOMIC-NEXT: .LBB6_4: ; %atomicrmw.end
; ATOMIC-NEXT: movem.l (0,%sp), %d2-%d3 ; 12-byte Folded Reload
; ATOMIC-NEXT: adda.l #8, %sp
; ATOMIC-NEXT: rts
%old = atomicrmw min ptr %ptr, i32 %val acquire
ret i32 %old
}
define i64 @atomicrmw_max_i64(i64 %val, ptr %ptr) {
; NO-ATOMIC-LABEL: atomicrmw_max_i64:
; NO-ATOMIC: .cfi_startproc
; NO-ATOMIC-NEXT: ; %bb.0:
; NO-ATOMIC-NEXT: suba.l #52, %sp
; NO-ATOMIC-NEXT: .cfi_def_cfa_offset -56
; NO-ATOMIC-NEXT: movem.l %d2-%d4/%a2-%a3, (32,%sp) ; 24-byte Folded Spill
; NO-ATOMIC-NEXT: move.l (60,%sp), %d3
; NO-ATOMIC-NEXT: move.l (56,%sp), %d4
; NO-ATOMIC-NEXT: move.l (64,%sp), %a2
; NO-ATOMIC-NEXT: move.l (4,%a2), %d1
; NO-ATOMIC-NEXT: move.l (%a2), %d0
; NO-ATOMIC-NEXT: lea (24,%sp), %a3
; NO-ATOMIC-NEXT: bra .LBB7_1
; NO-ATOMIC-NEXT: .LBB7_3: ; %atomicrmw.start
; NO-ATOMIC-NEXT: ; in Loop: Header=BB7_1 Depth=1
; NO-ATOMIC-NEXT: move.l %d1, (12,%sp)
; NO-ATOMIC-NEXT: move.l %d0, (8,%sp)
; NO-ATOMIC-NEXT: move.l #5, (20,%sp)
; NO-ATOMIC-NEXT: move.l #5, (16,%sp)
; NO-ATOMIC-NEXT: jsr __atomic_compare_exchange_8
; NO-ATOMIC-NEXT: move.b %d0, %d2
; NO-ATOMIC-NEXT: move.l (28,%sp), %d1
; NO-ATOMIC-NEXT: move.l (24,%sp), %d0
; NO-ATOMIC-NEXT: cmpi.b #0, %d2
; NO-ATOMIC-NEXT: bne .LBB7_4
; NO-ATOMIC-NEXT: .LBB7_1: ; %atomicrmw.start
; NO-ATOMIC-NEXT: ; =>This Inner Loop Header: Depth=1
; NO-ATOMIC-NEXT: move.l %d0, (24,%sp)
; NO-ATOMIC-NEXT: move.l %d1, (28,%sp)
; NO-ATOMIC-NEXT: move.l %a2, (%sp)
; NO-ATOMIC-NEXT: move.l %a3, (4,%sp)
; NO-ATOMIC-NEXT: move.l %d3, %d2
; NO-ATOMIC-NEXT: sub.l %d1, %d2
; NO-ATOMIC-NEXT: move.l %d4, %d2
; NO-ATOMIC-NEXT: subx.l %d0, %d2
; NO-ATOMIC-NEXT: slt %d2
; NO-ATOMIC-NEXT: cmpi.b #0, %d2
; NO-ATOMIC-NEXT: bne .LBB7_3
; NO-ATOMIC-NEXT: ; %bb.2: ; %atomicrmw.start
; NO-ATOMIC-NEXT: ; in Loop: Header=BB7_1 Depth=1
; NO-ATOMIC-NEXT: move.l %d3, %d1
; NO-ATOMIC-NEXT: move.l %d4, %d0
; NO-ATOMIC-NEXT: bra .LBB7_3
; NO-ATOMIC-NEXT: .LBB7_4: ; %atomicrmw.end
; NO-ATOMIC-NEXT: movem.l (32,%sp), %d2-%d4/%a2-%a3 ; 24-byte Folded Reload
; NO-ATOMIC-NEXT: adda.l #52, %sp
; NO-ATOMIC-NEXT: rts
;
; ATOMIC-LABEL: atomicrmw_max_i64:
; ATOMIC: .cfi_startproc
; ATOMIC-NEXT: ; %bb.0:
; ATOMIC-NEXT: suba.l #52, %sp
; ATOMIC-NEXT: .cfi_def_cfa_offset -56
; ATOMIC-NEXT: movem.l %d2-%d4/%a2-%a3, (32,%sp) ; 24-byte Folded Spill
; ATOMIC-NEXT: move.l (60,%sp), %d3
; ATOMIC-NEXT: move.l (56,%sp), %d4
; ATOMIC-NEXT: move.l (64,%sp), %a2
; ATOMIC-NEXT: move.l (4,%a2), %d1
; ATOMIC-NEXT: move.l (%a2), %d0
; ATOMIC-NEXT: lea (24,%sp), %a3
; ATOMIC-NEXT: bra .LBB7_1
; ATOMIC-NEXT: .LBB7_3: ; %atomicrmw.start
; ATOMIC-NEXT: ; in Loop: Header=BB7_1 Depth=1
; ATOMIC-NEXT: move.l %d1, (12,%sp)
; ATOMIC-NEXT: move.l %d0, (8,%sp)
; ATOMIC-NEXT: move.l #5, (20,%sp)
; ATOMIC-NEXT: move.l #5, (16,%sp)
; ATOMIC-NEXT: jsr __atomic_compare_exchange_8
; ATOMIC-NEXT: move.b %d0, %d2
; ATOMIC-NEXT: move.l (28,%sp), %d1
; ATOMIC-NEXT: move.l (24,%sp), %d0
; ATOMIC-NEXT: cmpi.b #0, %d2
; ATOMIC-NEXT: bne .LBB7_4
; ATOMIC-NEXT: .LBB7_1: ; %atomicrmw.start
; ATOMIC-NEXT: ; =>This Inner Loop Header: Depth=1
; ATOMIC-NEXT: move.l %d0, (24,%sp)
; ATOMIC-NEXT: move.l %d1, (28,%sp)
; ATOMIC-NEXT: move.l %a2, (%sp)
; ATOMIC-NEXT: move.l %a3, (4,%sp)
; ATOMIC-NEXT: move.l %d3, %d2
; ATOMIC-NEXT: sub.l %d1, %d2
; ATOMIC-NEXT: move.l %d4, %d2
; ATOMIC-NEXT: subx.l %d0, %d2
; ATOMIC-NEXT: slt %d2
; ATOMIC-NEXT: cmpi.b #0, %d2
; ATOMIC-NEXT: bne .LBB7_3
; ATOMIC-NEXT: ; %bb.2: ; %atomicrmw.start
; ATOMIC-NEXT: ; in Loop: Header=BB7_1 Depth=1
; ATOMIC-NEXT: move.l %d3, %d1
; ATOMIC-NEXT: move.l %d4, %d0
; ATOMIC-NEXT: bra .LBB7_3
; ATOMIC-NEXT: .LBB7_4: ; %atomicrmw.end
; ATOMIC-NEXT: movem.l (32,%sp), %d2-%d4/%a2-%a3 ; 24-byte Folded Reload
; ATOMIC-NEXT: adda.l #52, %sp
; ATOMIC-NEXT: rts
%old = atomicrmw max ptr %ptr, i64 %val seq_cst
ret i64 %old
}
define i8 @atomicrmw_i8_umin(i8 %val, ptr %ptr) {
; NO-ATOMIC-LABEL: atomicrmw_i8_umin:
; NO-ATOMIC: .cfi_startproc
; NO-ATOMIC-NEXT: ; %bb.0:
; NO-ATOMIC-NEXT: suba.l #12, %sp
; NO-ATOMIC-NEXT: .cfi_def_cfa_offset -16
; NO-ATOMIC-NEXT: move.b (19,%sp), %d0
; NO-ATOMIC-NEXT: and.l #255, %d0
; NO-ATOMIC-NEXT: move.l %d0, (4,%sp)
; NO-ATOMIC-NEXT: move.l (20,%sp), (%sp)
; NO-ATOMIC-NEXT: jsr __sync_fetch_and_umin_1
; NO-ATOMIC-NEXT: adda.l #12, %sp
; NO-ATOMIC-NEXT: rts
;
; ATOMIC-LABEL: atomicrmw_i8_umin:
; ATOMIC: .cfi_startproc
; ATOMIC-NEXT: ; %bb.0:
; ATOMIC-NEXT: suba.l #8, %sp
; ATOMIC-NEXT: .cfi_def_cfa_offset -12
; ATOMIC-NEXT: movem.l %d2-%d3, (0,%sp) ; 12-byte Folded Spill
; ATOMIC-NEXT: move.b (15,%sp), %d1
; ATOMIC-NEXT: move.l (16,%sp), %a0
; ATOMIC-NEXT: move.b (%a0), %d2
; ATOMIC-NEXT: bra .LBB8_1
; ATOMIC-NEXT: .LBB8_3: ; %atomicrmw.start
; ATOMIC-NEXT: ; in Loop: Header=BB8_1 Depth=1
; ATOMIC-NEXT: move.b %d2, %d0
; ATOMIC-NEXT: cas.b %d0, %d3, (%a0)
; ATOMIC-NEXT: move.b %d0, %d3
; ATOMIC-NEXT: sub.b %d2, %d3
; ATOMIC-NEXT: seq %d2
; ATOMIC-NEXT: sub.b #1, %d2
; ATOMIC-NEXT: move.b %d0, %d2
; ATOMIC-NEXT: beq .LBB8_4
; ATOMIC-NEXT: .LBB8_1: ; %atomicrmw.start
; ATOMIC-NEXT: ; =>This Inner Loop Header: Depth=1
; ATOMIC-NEXT: move.b %d2, %d0
; ATOMIC-NEXT: sub.b %d1, %d0
; ATOMIC-NEXT: move.b %d2, %d3
; ATOMIC-NEXT: bls .LBB8_3
; ATOMIC-NEXT: ; %bb.2: ; %atomicrmw.start
; ATOMIC-NEXT: ; in Loop: Header=BB8_1 Depth=1
; ATOMIC-NEXT: move.b %d1, %d3
; ATOMIC-NEXT: bra .LBB8_3
; ATOMIC-NEXT: .LBB8_4: ; %atomicrmw.end
; ATOMIC-NEXT: movem.l (0,%sp), %d2-%d3 ; 12-byte Folded Reload
; ATOMIC-NEXT: adda.l #8, %sp
; ATOMIC-NEXT: rts
%old = atomicrmw umin ptr %ptr, i8 %val release
ret i8 %old
}
define i16 @atomicrmw_umax_i16(i16 %val, ptr %ptr) {
; NO-ATOMIC-LABEL: atomicrmw_umax_i16:
; NO-ATOMIC: .cfi_startproc
; NO-ATOMIC-NEXT: ; %bb.0:
; NO-ATOMIC-NEXT: suba.l #12, %sp
; NO-ATOMIC-NEXT: .cfi_def_cfa_offset -16
; NO-ATOMIC-NEXT: move.w (18,%sp), %d0
; NO-ATOMIC-NEXT: and.l #65535, %d0
; NO-ATOMIC-NEXT: move.l %d0, (4,%sp)
; NO-ATOMIC-NEXT: move.l (20,%sp), (%sp)
; NO-ATOMIC-NEXT: jsr __sync_fetch_and_umax_2
; NO-ATOMIC-NEXT: adda.l #12, %sp
; NO-ATOMIC-NEXT: rts
;
; ATOMIC-LABEL: atomicrmw_umax_i16:
; ATOMIC: .cfi_startproc
; ATOMIC-NEXT: ; %bb.0:
; ATOMIC-NEXT: suba.l #8, %sp
; ATOMIC-NEXT: .cfi_def_cfa_offset -12
; ATOMIC-NEXT: movem.l %d2-%d3, (0,%sp) ; 12-byte Folded Spill
; ATOMIC-NEXT: move.w (14,%sp), %d1
; ATOMIC-NEXT: move.l (16,%sp), %a0
; ATOMIC-NEXT: move.w (%a0), %d2
; ATOMIC-NEXT: bra .LBB9_1
; ATOMIC-NEXT: .LBB9_3: ; %atomicrmw.start
; ATOMIC-NEXT: ; in Loop: Header=BB9_1 Depth=1
; ATOMIC-NEXT: move.w %d2, %d0
; ATOMIC-NEXT: cas.w %d0, %d3, (%a0)
; ATOMIC-NEXT: move.w %d0, %d3
; ATOMIC-NEXT: sub.w %d2, %d3
; ATOMIC-NEXT: seq %d2
; ATOMIC-NEXT: sub.b #1, %d2
; ATOMIC-NEXT: move.w %d0, %d2
; ATOMIC-NEXT: beq .LBB9_4
; ATOMIC-NEXT: .LBB9_1: ; %atomicrmw.start
; ATOMIC-NEXT: ; =>This Inner Loop Header: Depth=1
; ATOMIC-NEXT: move.w %d2, %d0
; ATOMIC-NEXT: sub.w %d1, %d0
; ATOMIC-NEXT: move.w %d2, %d3
; ATOMIC-NEXT: bhi .LBB9_3
; ATOMIC-NEXT: ; %bb.2: ; %atomicrmw.start
; ATOMIC-NEXT: ; in Loop: Header=BB9_1 Depth=1
; ATOMIC-NEXT: move.w %d1, %d3
; ATOMIC-NEXT: bra .LBB9_3
; ATOMIC-NEXT: .LBB9_4: ; %atomicrmw.end
; ATOMIC-NEXT: movem.l (0,%sp), %d2-%d3 ; 12-byte Folded Reload
; ATOMIC-NEXT: adda.l #8, %sp
; ATOMIC-NEXT: rts
%old = atomicrmw umax ptr %ptr, i16 %val seq_cst
ret i16 %old
}
define i16 @atomicrmw_xchg_i16(i16 %val, ptr %ptr) {
; NO-ATOMIC-LABEL: atomicrmw_xchg_i16:
; NO-ATOMIC: .cfi_startproc
; NO-ATOMIC-NEXT: ; %bb.0: ; %entry
; NO-ATOMIC-NEXT: suba.l #12, %sp
; NO-ATOMIC-NEXT: .cfi_def_cfa_offset -16
; NO-ATOMIC-NEXT: move.w (18,%sp), %d0
; NO-ATOMIC-NEXT: and.l #65535, %d0
; NO-ATOMIC-NEXT: move.l %d0, (4,%sp)
; NO-ATOMIC-NEXT: move.l (20,%sp), (%sp)
; NO-ATOMIC-NEXT: jsr __sync_lock_test_and_set_2
; NO-ATOMIC-NEXT: adda.l #12, %sp
; NO-ATOMIC-NEXT: rts
;
; ATOMIC-LABEL: atomicrmw_xchg_i16:
; ATOMIC: .cfi_startproc
; ATOMIC-NEXT: ; %bb.0: ; %entry
; ATOMIC-NEXT: suba.l #8, %sp
; ATOMIC-NEXT: .cfi_def_cfa_offset -12
; ATOMIC-NEXT: movem.l %d2-%d3, (0,%sp) ; 12-byte Folded Spill
; ATOMIC-NEXT: move.w (14,%sp), %d1
; ATOMIC-NEXT: move.l (16,%sp), %a0
; ATOMIC-NEXT: move.w (%a0), %d2
; ATOMIC-NEXT: move.w %d2, %d0
; ATOMIC-NEXT: .LBB10_1: ; %atomicrmw.start
; ATOMIC-NEXT: ; =>This Inner Loop Header: Depth=1
; ATOMIC-NEXT: cas.w %d0, %d1, (%a0)
; ATOMIC-NEXT: move.w %d0, %d3
; ATOMIC-NEXT: sub.w %d2, %d3
; ATOMIC-NEXT: seq %d2
; ATOMIC-NEXT: sub.b #1, %d2
; ATOMIC-NEXT: move.w %d0, %d2
; ATOMIC-NEXT: bne .LBB10_1
; ATOMIC-NEXT: ; %bb.2: ; %atomicrmw.end
; ATOMIC-NEXT: movem.l (0,%sp), %d2-%d3 ; 12-byte Folded Reload
; ATOMIC-NEXT: adda.l #8, %sp
; ATOMIC-NEXT: rts
entry:
%old = atomicrmw xchg ptr %ptr, i16 %val monotonic
ret i16 %old
}
define i32 @atomicrmw_xchg_i32(i32 %val, ptr %ptr) {
; NO-ATOMIC-LABEL: atomicrmw_xchg_i32:
; NO-ATOMIC: .cfi_startproc
; NO-ATOMIC-NEXT: ; %bb.0: ; %entry
; NO-ATOMIC-NEXT: suba.l #12, %sp
; NO-ATOMIC-NEXT: .cfi_def_cfa_offset -16
; NO-ATOMIC-NEXT: move.l (16,%sp), (4,%sp)
; NO-ATOMIC-NEXT: move.l (20,%sp), (%sp)
; NO-ATOMIC-NEXT: jsr __sync_lock_test_and_set_4
; NO-ATOMIC-NEXT: adda.l #12, %sp
; NO-ATOMIC-NEXT: rts
;
; ATOMIC-LABEL: atomicrmw_xchg_i32:
; ATOMIC: .cfi_startproc
; ATOMIC-NEXT: ; %bb.0: ; %entry
; ATOMIC-NEXT: suba.l #8, %sp
; ATOMIC-NEXT: .cfi_def_cfa_offset -12
; ATOMIC-NEXT: movem.l %d2-%d3, (0,%sp) ; 12-byte Folded Spill
; ATOMIC-NEXT: move.l (12,%sp), %d1
; ATOMIC-NEXT: move.l (16,%sp), %a0
; ATOMIC-NEXT: move.l (%a0), %d2
; ATOMIC-NEXT: move.l %d2, %d0
; ATOMIC-NEXT: .LBB11_1: ; %atomicrmw.start
; ATOMIC-NEXT: ; =>This Inner Loop Header: Depth=1
; ATOMIC-NEXT: cas.l %d0, %d1, (%a0)
; ATOMIC-NEXT: move.l %d0, %d3
; ATOMIC-NEXT: sub.l %d2, %d3
; ATOMIC-NEXT: seq %d2
; ATOMIC-NEXT: sub.b #1, %d2
; ATOMIC-NEXT: move.l %d0, %d2
; ATOMIC-NEXT: bne .LBB11_1
; ATOMIC-NEXT: ; %bb.2: ; %atomicrmw.end
; ATOMIC-NEXT: movem.l (0,%sp), %d2-%d3 ; 12-byte Folded Reload
; ATOMIC-NEXT: adda.l #8, %sp
; ATOMIC-NEXT: rts
entry:
%old = atomicrmw xchg ptr %ptr, i32 %val monotonic
ret i32 %old
}
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