forked from OSchip/llvm-project
126 lines
3.0 KiB
LLVM
126 lines
3.0 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
|
|
; RUN: llc < %s -mtriple=x86_64-- | FileCheck %s
|
|
|
|
; PR37025
|
|
;
|
|
;#include <stdatomic.h>
|
|
;#include <stdbool.h>
|
|
;
|
|
;void func2();
|
|
;
|
|
;void func(_Atomic(unsigned long) * obj, void * obj2)
|
|
;{
|
|
; if (atomic_fetch_sub(obj, 1) == 1 && obj2)
|
|
; func2();
|
|
;}
|
|
|
|
define void @test_dec_select(i64* nocapture %0, i8* readnone %1) {
|
|
; CHECK-LABEL: test_dec_select:
|
|
; CHECK: # %bb.0:
|
|
; CHECK-NEXT: lock decq (%rdi)
|
|
; CHECK-NEXT: jne .LBB0_2
|
|
; CHECK-NEXT: # %bb.1:
|
|
; CHECK-NEXT: testq %rsi, %rsi
|
|
; CHECK-NEXT: je .LBB0_2
|
|
; CHECK-NEXT: # %bb.3:
|
|
; CHECK-NEXT: jmp func2 # TAILCALL
|
|
; CHECK-NEXT: .LBB0_2:
|
|
; CHECK-NEXT: retq
|
|
%3 = atomicrmw sub i64* %0, i64 1 seq_cst
|
|
%4 = icmp eq i64 %3, 1
|
|
%5 = icmp ne i8* %1, null
|
|
%6 = select i1 %4, i1 %5, i1 false
|
|
br i1 %6, label %7, label %8
|
|
|
|
7: ; preds = %2
|
|
tail call void @func2()
|
|
br label %8
|
|
|
|
8: ; preds = %7, %2
|
|
ret void
|
|
}
|
|
|
|
define void @test_dec_select_commute(i64* nocapture %0, i8* readnone %1) {
|
|
; CHECK-LABEL: test_dec_select_commute:
|
|
; CHECK: # %bb.0:
|
|
; CHECK-NEXT: movq $-1, %rax
|
|
; CHECK-NEXT: lock xaddq %rax, (%rdi)
|
|
; CHECK-NEXT: testq %rsi, %rsi
|
|
; CHECK-NEXT: je .LBB1_2
|
|
; CHECK-NEXT: # %bb.1:
|
|
; CHECK-NEXT: cmpq $1, %rax
|
|
; CHECK-NEXT: jne .LBB1_2
|
|
; CHECK-NEXT: # %bb.3:
|
|
; CHECK-NEXT: jmp func2 # TAILCALL
|
|
; CHECK-NEXT: .LBB1_2:
|
|
; CHECK-NEXT: retq
|
|
%3 = atomicrmw sub i64* %0, i64 1 seq_cst
|
|
%4 = icmp eq i64 %3, 1
|
|
%5 = icmp ne i8* %1, null
|
|
%6 = select i1 %5, i1 %4, i1 false
|
|
br i1 %6, label %7, label %8
|
|
|
|
7: ; preds = %2
|
|
tail call void @func2()
|
|
br label %8
|
|
|
|
8: ; preds = %7, %2
|
|
ret void
|
|
}
|
|
|
|
define void @test_dec_and(i64* nocapture %0, i8* readnone %1) {
|
|
; CHECK-LABEL: test_dec_and:
|
|
; CHECK: # %bb.0:
|
|
; CHECK-NEXT: movq $-1, %rax
|
|
; CHECK-NEXT: lock xaddq %rax, (%rdi)
|
|
; CHECK-NEXT: testq %rsi, %rsi
|
|
; CHECK-NEXT: je .LBB2_2
|
|
; CHECK-NEXT: # %bb.1:
|
|
; CHECK-NEXT: cmpq $1, %rax
|
|
; CHECK-NEXT: jne .LBB2_2
|
|
; CHECK-NEXT: # %bb.3:
|
|
; CHECK-NEXT: jmp func2 # TAILCALL
|
|
; CHECK-NEXT: .LBB2_2:
|
|
; CHECK-NEXT: retq
|
|
%3 = atomicrmw sub i64* %0, i64 1 seq_cst
|
|
%4 = icmp eq i64 %3, 1
|
|
%5 = icmp ne i8* %1, null
|
|
%6 = and i1 %5, %4
|
|
br i1 %6, label %7, label %8
|
|
|
|
7: ; preds = %2
|
|
tail call void @func2()
|
|
br label %8
|
|
|
|
8: ; preds = %7, %2
|
|
ret void
|
|
}
|
|
|
|
define void @test_dec_and_commute(i64* nocapture %0, i8* readnone %1) {
|
|
; CHECK-LABEL: test_dec_and_commute:
|
|
; CHECK: # %bb.0:
|
|
; CHECK-NEXT: lock decq (%rdi)
|
|
; CHECK-NEXT: jne .LBB3_2
|
|
; CHECK-NEXT: # %bb.1:
|
|
; CHECK-NEXT: testq %rsi, %rsi
|
|
; CHECK-NEXT: je .LBB3_2
|
|
; CHECK-NEXT: # %bb.3:
|
|
; CHECK-NEXT: jmp func2 # TAILCALL
|
|
; CHECK-NEXT: .LBB3_2:
|
|
; CHECK-NEXT: retq
|
|
%3 = atomicrmw sub i64* %0, i64 1 seq_cst
|
|
%4 = icmp eq i64 %3, 1
|
|
%5 = icmp ne i8* %1, null
|
|
%6 = and i1 %4, %5
|
|
br i1 %6, label %7, label %8
|
|
|
|
7: ; preds = %2
|
|
tail call void @func2()
|
|
br label %8
|
|
|
|
8: ; preds = %7, %2
|
|
ret void
|
|
}
|
|
|
|
declare dso_local void @func2()
|