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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -passes=gvn -verify-analysis-invalidation -S | FileCheck --check-prefixes=CHECK,MDEP %s
; RUN: opt < %s -passes='gvn<memoryssa;no-memdep>' -verify-analysis-invalidation -S | FileCheck --check-prefixes=CHECK,MSSA %s
declare void @llvm.assume(i1)
declare void @use(i1)
define void @assume_true() {
; CHECK-LABEL: @assume_true(
; CHECK-NEXT: ret void
;
call void @llvm.assume(i1 true)
ret void
}
define void @assume_false() {
; CHECK-LABEL: @assume_false(
; CHECK-NEXT: store i8 poison, ptr null, align 1
; CHECK-NEXT: ret void
;
call void @llvm.assume(i1 false)
ret void
}
define void @assume_arg(i1 %x) {
; CHECK-LABEL: @assume_arg(
; CHECK-NEXT: call void @llvm.assume(i1 [[X:%.*]])
; CHECK-NEXT: call void @use(i1 true)
; CHECK-NEXT: ret void
;
call void @llvm.assume(i1 %x)
call void @use(i1 %x)
ret void
}
define void @assume_not_arg(i1 %x) {
; CHECK-LABEL: @assume_not_arg(
; CHECK-NEXT: [[XOR:%.*]] = xor i1 [[X:%.*]], true
; CHECK-NEXT: call void @llvm.assume(i1 [[XOR]])
; CHECK-NEXT: call void @use(i1 false)
; CHECK-NEXT: ret void
;
%xor = xor i1 %x, true
call void @llvm.assume(i1 %xor)
call void @use(i1 %x)
ret void
}
define void @pr47496(i8 %x) {
; CHECK-LABEL: @pr47496(
; CHECK-NEXT: [[CMP:%.*]] = icmp slt i8 [[X:%.*]], 0
; CHECK-NEXT: [[XOR:%.*]] = xor i1 [[CMP]], true
; CHECK-NEXT: call void @llvm.assume(i1 [[XOR]])
; CHECK-NEXT: call void @use(i1 false)
; CHECK-NEXT: ret void
;
%cmp = icmp slt i8 %x, 0
%xor = xor i1 %cmp, true
call void @llvm.assume(i1 %xor)
call void @use(i1 %cmp)
ret void
}
;; NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line:
; MDEP: {{.*}}
; MSSA: {{.*}}
|
