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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 2
; RUN: llc < %s -mtriple=riscv64 -mattr=+a | FileCheck %s
define ptr @cmpxchg_masked_and_branch1(ptr %ptr, i8 signext %cmp, i8 signext %val) nounwind {
; CHECK-LABEL: cmpxchg_masked_and_branch1:
; CHECK: # %bb.0: # %do_cmpxchg
; CHECK-NEXT: andi a3, a0, -4
; CHECK-NEXT: slli a4, a0, 3
; CHECK-NEXT: li a5, 255
; CHECK-NEXT: sllw a5, a5, a4
; CHECK-NEXT: andi a1, a1, 255
; CHECK-NEXT: sllw a1, a1, a4
; CHECK-NEXT: andi a2, a2, 255
; CHECK-NEXT: sllw a2, a2, a4
; CHECK-NEXT: .LBB0_3: # %do_cmpxchg
; CHECK-NEXT: # =>This Inner Loop Header: Depth=1
; CHECK-NEXT: lr.w.aqrl a4, (a3)
; CHECK-NEXT: and a6, a4, a5
; CHECK-NEXT: bne a6, a1, .LBB0_5
; CHECK-NEXT: # %bb.4: # %do_cmpxchg
; CHECK-NEXT: # in Loop: Header=BB0_3 Depth=1
; CHECK-NEXT: xor a6, a4, a2
; CHECK-NEXT: and a6, a6, a5
; CHECK-NEXT: xor a6, a4, a6
; CHECK-NEXT: sc.w.rl a6, a6, (a3)
; CHECK-NEXT: bnez a6, .LBB0_3
; CHECK-NEXT: .LBB0_5: # %do_cmpxchg
; CHECK-NEXT: and a2, a4, a5
; CHECK-NEXT: bne a1, a2, .LBB0_2
; CHECK-NEXT: # %bb.1: # %returnptr
; CHECK-NEXT: xor a1, a1, a2
; CHECK-NEXT: snez a1, a1
; CHECK-NEXT: addi a1, a1, -1
; CHECK-NEXT: and a0, a1, a0
; CHECK-NEXT: ret
; CHECK-NEXT: .LBB0_2: # %exit
; CHECK-NEXT: li a0, 0
; CHECK-NEXT: ret
do_cmpxchg:
%0 = cmpxchg ptr %ptr, i8 %cmp, i8 %val seq_cst seq_cst
%1 = extractvalue { i8, i1 } %0, 1
%2 = select i1 %1, ptr %ptr, ptr null
br i1 %1, label %returnptr, label %exit
returnptr:
ret ptr %2
exit:
ret ptr null
}
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