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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -passes=mem2reg -S -o - < %s | FileCheck %s
declare void @llvm.assume(i1)
declare void @llvm.lifetime.start.p0i8(i64 %size, i8* nocapture %ptr)
declare void @llvm.lifetime.end.p0i8(i64 %size, i8* nocapture %ptr)
define void @positive_assume_uses(i32* %arg) {
; CHECK-LABEL: @positive_assume_uses(
; CHECK-NEXT: call void @llvm.assume(i1 true) [ "nonnull"(i32* [[ARG:%.*]]), "ignore"(i32* undef, i64 2) ]
; CHECK-NEXT: call void @llvm.assume(i1 true) [ "ignore"(i32* undef, i64 8), "nonnull"(i32* [[ARG]]) ]
; CHECK-NEXT: ret void
;
%A = alloca i32
call void @llvm.assume(i1 true) ["nonnull"(i32* %arg), "align"(i32* %A, i64 2)]
store i32 1, i32* %A
call void @llvm.assume(i1 true) ["align"(i32* %A, i64 8), "nonnull"(i32* %arg)]
ret void
}
define void @negative_assume_condition_use() {
; CHECK-LABEL: @negative_assume_condition_use(
; CHECK-NEXT: [[A:%.*]] = alloca i32, align 4
; CHECK-NEXT: [[B:%.*]] = bitcast i32* [[A]] to i8*
; CHECK-NEXT: [[CND:%.*]] = icmp eq i8* [[B]], null
; CHECK-NEXT: call void @llvm.assume(i1 [[CND]])
; CHECK-NEXT: store i32 1, i32* [[A]], align 4
; CHECK-NEXT: ret void
;
%A = alloca i32
%B = bitcast i32* %A to i8*
%cnd = icmp eq i8* %B, null
call void @llvm.assume(i1 %cnd)
store i32 1, i32* %A
ret void
}
define void @positive_multiple_assume_uses() {
; CHECK-LABEL: @positive_multiple_assume_uses(
; CHECK-NEXT: call void @llvm.assume(i1 true) [ "ignore"({ i8, i16 }* undef, i64 8), "ignore"({ i8, i16 }* undef, i64 16) ]
; CHECK-NEXT: call void @llvm.assume(i1 true) [ "ignore"({ i8, i16 }* undef), "ignore"({ i8, i16 }* undef, i64 2) ]
; CHECK-NEXT: ret void
;
%A = alloca {i8, i16}
call void @llvm.assume(i1 true) ["align"({i8, i16}* %A, i64 8), "align"({i8, i16}* %A, i64 16)]
store {i8, i16} zeroinitializer, {i8, i16}* %A
call void @llvm.assume(i1 true) ["nonnull"({i8, i16}* %A), "align"({i8, i16}* %A, i64 2)]
ret void
}
define void @positive_gep_assume_uses() {
; CHECK-LABEL: @positive_gep_assume_uses(
; CHECK-NEXT: call void @llvm.assume(i1 true) [ "ignore"(i8* undef, i64 8), "ignore"(i8* undef, i64 16) ]
; CHECK-NEXT: call void @llvm.assume(i1 true) [ "ignore"(i8* undef), "ignore"(i8* undef, i64 2) ]
; CHECK-NEXT: ret void
;
%A = alloca {i8, i16}
%B = getelementptr {i8, i16}, {i8, i16}* %A, i32 0, i32 0
call void @llvm.lifetime.start.p0i8(i64 2, i8* %B)
call void @llvm.assume(i1 true) ["align"(i8* %B, i64 8), "align"(i8* %B, i64 16)]
store {i8, i16} zeroinitializer, {i8, i16}* %A
call void @llvm.lifetime.end.p0i8(i64 2, i8* %B)
call void @llvm.assume(i1 true) ["nonnull"(i8* %B), "align"(i8* %B, i64 2)]
ret void
}
define void @positive_mixed_assume_uses() {
; CHECK-LABEL: @positive_mixed_assume_uses(
; CHECK-NEXT: call void @llvm.assume(i1 true) [ "ignore"(i8* undef), "ignore"(i8* undef, i64 8), "ignore"(i8* undef, i64 16) ]
; CHECK-NEXT: call void @llvm.assume(i1 true) [ "ignore"(i8* undef), "ignore"(i8* undef, i64 2), "ignore"(i8* undef) ]
; CHECK-NEXT: call void @llvm.assume(i1 true) [ "ignore"(i32* undef), "ignore"(i32* undef, i64 2), "ignore"(i8* undef) ]
; CHECK-NEXT: ret void
;
%A = alloca i8
%B = getelementptr i8, i8* %A, i32 0
%C = bitcast i8* %A to i32*
call void @llvm.lifetime.start.p0i8(i64 2, i8* %B)
call void @llvm.assume(i1 true) ["nonnull"(i8* %B), "align"(i8* %A, i64 8), "align"(i8* %B, i64 16)]
store i8 1, i8* %A
call void @llvm.lifetime.end.p0i8(i64 2, i8* %B)
call void @llvm.assume(i1 true) ["nonnull"(i8* %B), "align"(i8* %A, i64 2), "nonnull"(i8* %A)]
call void @llvm.assume(i1 true) ["nonnull"(i32* %C), "align"(i32* %C, i64 2), "nonnull"(i8* %A)]
ret void
}
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