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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

221 lines
6.2 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
; RUN: opt -S -passes=instcombine < %s | FileCheck %s
; ARM64 dmb intrinsics
target triple = "aarch64-unknown-linux-gnu"
declare void @llvm.aarch64.dmb(i32)
declare void @llvm.aarch64.dsb(i32)
declare void @clobber()
declare void @pure() memory(none) willreturn nounwind
declare i32 @llvm.ctlz.i32(i32, i1)
define void @simple() #0 {
; CHECK-LABEL: define void @simple() {
; CHECK-NEXT: call void @llvm.aarch64.dmb(i32 10)
; CHECK-NEXT: ret void
;
call void @llvm.aarch64.dmb(i32 10)
call void @llvm.aarch64.dmb(i32 10)
ret void
}
; dmb ish (0xb) is technically stronger than ishst (0xa) but we don't merge for now
define void @simple_nonmatching() #0 {
; CHECK-LABEL: define void @simple_nonmatching() {
; CHECK-NEXT: call void @llvm.aarch64.dmb(i32 10)
; CHECK-NEXT: call void @llvm.aarch64.dmb(i32 11)
; CHECK-NEXT: ret void
;
call void @llvm.aarch64.dmb(i32 10)
call void @llvm.aarch64.dmb(i32 11)
ret void
}
define ptr @simple_safe_instruction(ptr %p) #0 {
; CHECK-LABEL: define ptr @simple_safe_instruction(
; CHECK-SAME: ptr [[P:%.*]]) {
; CHECK-NEXT: [[RES:%.*]] = getelementptr inbounds nuw i8, ptr [[P]], i64 8
; CHECK-NEXT: call void @llvm.aarch64.dmb(i32 10)
; CHECK-NEXT: ret ptr [[RES]]
;
call void @llvm.aarch64.dmb(i32 10)
%res = getelementptr inbounds i8, ptr %p, i32 8
call void @llvm.aarch64.dmb(i32 10)
ret ptr %res
}
define i32 @simple_safe_intrinsic(i32 %n) #0 {
; CHECK-LABEL: define i32 @simple_safe_intrinsic(
; CHECK-SAME: i32 [[N:%.*]]) {
; CHECK-NEXT: [[RES:%.*]] = call range(i32 0, 33) i32 @llvm.ctlz.i32(i32 [[N]], i1 false)
; CHECK-NEXT: call void @llvm.aarch64.dmb(i32 10)
; CHECK-NEXT: ret i32 [[RES]]
;
call void @llvm.aarch64.dmb(i32 10)
%res = call i32 @llvm.ctlz.i32(i32 %n, i1 false)
call void @llvm.aarch64.dmb(i32 10)
ret i32 %res
}
define void @simple_unsafe_intrinsic() #0 {
; CHECK-LABEL: define void @simple_unsafe_intrinsic() {
; CHECK-NEXT: call void @llvm.aarch64.dmb(i32 10)
; CHECK-NEXT: call void @llvm.aarch64.dsb(i32 10)
; CHECK-NEXT: call void @llvm.aarch64.dmb(i32 10)
; CHECK-NEXT: ret void
;
call void @llvm.aarch64.dmb(i32 10)
call void @llvm.aarch64.dsb(i32 10)
call void @llvm.aarch64.dmb(i32 10)
ret void
}
define void @simple_safe_unsafe_instruction(ptr %p) #0 {
; CHECK-LABEL: define void @simple_safe_unsafe_instruction(
; CHECK-SAME: ptr [[P:%.*]]) {
; CHECK-NEXT: call void @llvm.aarch64.dmb(i32 10)
; CHECK-NEXT: store i32 42, ptr [[P]], align 4
; CHECK-NEXT: call void @llvm.aarch64.dmb(i32 10)
; CHECK-NEXT: ret void
;
call void @llvm.aarch64.dmb(i32 10)
store i32 42, ptr %p
call void @llvm.aarch64.dmb(i32 10)
ret void
}
define void @simple_safe_unsafe_call(ptr %p) #0 {
; CHECK-LABEL: define void @simple_safe_unsafe_call(
; CHECK-SAME: ptr [[P:%.*]]) {
; CHECK-NEXT: call void @llvm.aarch64.dmb(i32 10)
; CHECK-NEXT: call void @clobber()
; CHECK-NEXT: call void @llvm.aarch64.dmb(i32 10)
; CHECK-NEXT: ret void
;
call void @llvm.aarch64.dmb(i32 10)
call void @clobber()
call void @llvm.aarch64.dmb(i32 10)
ret void
}
define void @simple_safe_safe_call(ptr %p) #0 {
; CHECK-LABEL: define void @simple_safe_safe_call(
; CHECK-SAME: ptr [[P:%.*]]) {
; CHECK-NEXT: call void @llvm.aarch64.dmb(i32 10)
; CHECK-NEXT: ret void
;
call void @llvm.aarch64.dmb(i32 10)
call void @pure()
call void @llvm.aarch64.dmb(i32 10)
ret void
}
define void @multiple_bbs1(i1 %f) #0 {
; CHECK-LABEL: define void @multiple_bbs1(
; CHECK-SAME: i1 [[F:%.*]]) {
; CHECK-NEXT: [[ENTRY:.*:]]
; CHECK-NEXT: br i1 [[F]], label %[[BB_T:.*]], label %[[BB_F:.*]]
; CHECK: [[BB_T]]:
; CHECK-NEXT: br label %[[EXIT:.*]]
; CHECK: [[BB_F]]:
; CHECK-NEXT: br label %[[EXIT]]
; CHECK: [[EXIT]]:
; CHECK-NEXT: call void @llvm.aarch64.dmb(i32 10)
; CHECK-NEXT: ret void
;
entry:
br i1 %f, label %bb_t, label %bb_f
bb_t:
call void @llvm.aarch64.dmb(i32 10)
br label %exit
bb_f:
call void @llvm.aarch64.dmb(i32 10)
br label %exit
exit:
call void @llvm.aarch64.dmb(i32 10)
ret void
}
define void @multiple_bbs2(i1 %f) #0 {
; CHECK-LABEL: define void @multiple_bbs2(
; CHECK-SAME: i1 [[F:%.*]]) {
; CHECK-NEXT: [[ENTRY:.*:]]
; CHECK-NEXT: br i1 [[F]], label %[[BB_T:.*]], label %[[BB_F:.*]]
; CHECK: [[BB_T]]:
; CHECK-NEXT: br label %[[EXIT:.*]]
; CHECK: [[BB_F]]:
; CHECK-NEXT: br label %[[EXIT]]
; CHECK: [[EXIT]]:
; CHECK-NEXT: call void @llvm.aarch64.dmb(i32 10)
; CHECK-NEXT: ret void
;
entry:
br i1 %f, label %bb_t, label %bb_f
bb_t:
call void @llvm.aarch64.dmb(i32 10)
br label %exit
bb_f:
br label %exit
exit:
call void @llvm.aarch64.dmb(i32 10)
ret void
}
define void @multiple_bbs3(i1 %f, ptr %p) #0 {
; CHECK-LABEL: define void @multiple_bbs3(
; CHECK-SAME: i1 [[F:%.*]], ptr [[P:%.*]]) {
; CHECK-NEXT: [[ENTRY:.*:]]
; CHECK-NEXT: br i1 [[F]], label %[[BB_T:.*]], label %[[BB_F:.*]]
; CHECK: [[BB_T]]:
; CHECK-NEXT: br label %[[EXIT:.*]]
; CHECK: [[BB_F]]:
; CHECK-NEXT: store i32 42, ptr [[P]], align 4
; CHECK-NEXT: br label %[[EXIT]]
; CHECK: [[EXIT]]:
; CHECK-NEXT: call void @llvm.aarch64.dmb(i32 10)
; CHECK-NEXT: ret void
;
entry:
br i1 %f, label %bb_t, label %bb_f
bb_t:
call void @llvm.aarch64.dmb(i32 10)
br label %exit
bb_f:
store i32 42, ptr %p
br label %exit
exit:
call void @llvm.aarch64.dmb(i32 10)
ret void
}
define void @multiple_bbs_unsafe(i1 %f, ptr %p) #0 {
; CHECK-LABEL: define void @multiple_bbs_unsafe(
; CHECK-SAME: i1 [[F:%.*]], ptr [[P:%.*]]) {
; CHECK-NEXT: [[ENTRY:.*:]]
; CHECK-NEXT: br i1 [[F]], label %[[BB_T:.*]], label %[[BB_F:.*]]
; CHECK: [[BB_T]]:
; CHECK-NEXT: call void @llvm.aarch64.dmb(i32 10)
; CHECK-NEXT: store i32 42, ptr [[P]], align 4
; CHECK-NEXT: br label %[[EXIT:.*]]
; CHECK: [[BB_F]]:
; CHECK-NEXT: br label %[[EXIT]]
; CHECK: [[EXIT]]:
; CHECK-NEXT: call void @llvm.aarch64.dmb(i32 10)
; CHECK-NEXT: ret void
;
entry:
br i1 %f, label %bb_t, label %bb_f
bb_t:
call void @llvm.aarch64.dmb(i32 10)
store i32 42, ptr %p
br label %exit
bb_f:
call void @llvm.aarch64.dmb(i32 10)
br label %exit
exit:
call void @llvm.aarch64.dmb(i32 10)
ret void
}
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