Skip to content

codegen tests: Tolerate nuw nsw on trunc #123808

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
Apr 11, 2024
Merged

codegen tests: Tolerate nuw nsw on trunc #123808

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
2 changes: 1 addition & 1 deletion tests/codegen/ascii-char.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -12,7 +12,7 @@ pub fn unwrap_digit_from_remainder(v: u32) -> AsciiChar {
// CHECK-NOT: panic

// CHECK: %[[R:.+]] = urem i32 %v, 10
// CHECK-NEXT: %[[T:.+]] = trunc i32 %[[R]] to i8
// CHECK-NEXT: %[[T:.+]] = trunc{{( nuw)?( nsw)?}} i32 %[[R]] to i8
// CHECK-NEXT: %[[D:.+]] = or{{( disjoint)?}} i8 %[[T]], 48
// CHECK-NEXT: ret i8 %[[D]]

Expand Down
8 changes: 4 additions & 4 deletions tests/codegen/unchecked_shifts.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -22,7 +22,7 @@ pub unsafe fn unchecked_shl_unsigned_smaller(a: u16, b: u32) -> u16 {

// CHECK-DAG: %[[INRANGE:.+]] = icmp ult i32 %b, 16
// CHECK-DAG: tail call void @llvm.assume(i1 %[[INRANGE]])
// CHECK-DAG: %[[TRUNC:.+]] = trunc i32 %b to i16
// CHECK-DAG: %[[TRUNC:.+]] = trunc{{( nuw)?( nsw)?}} i32 %b to i16
// CHECK-DAG: shl i16 %a, %[[TRUNC]]
a.unchecked_shl(b)
}
Expand Down Expand Up @@ -54,7 +54,7 @@ pub unsafe fn unchecked_shr_signed_smaller(a: i16, b: u32) -> i16 {

// CHECK-DAG: %[[INRANGE:.+]] = icmp ult i32 %b, 16
// CHECK-DAG: tail call void @llvm.assume(i1 %[[INRANGE]])
// CHECK-DAG: %[[TRUNC:.+]] = trunc i32 %b to i16
// CHECK-DAG: %[[TRUNC:.+]] = trunc{{( nuw)?( nsw)?}} i32 %b to i16
// CHECK-DAG: ashr i16 %a, %[[TRUNC]]
a.unchecked_shr(b)
}
Expand Down Expand Up @@ -94,7 +94,7 @@ pub unsafe fn unchecked_shl_u8_i128(a: u8, b: i128) -> u8 {

// CHECK-DAG: %[[INRANGE:.+]] = icmp ult i128 %b, 8
// CHECK-DAG: tail call void @llvm.assume(i1 %[[INRANGE]])
// CHECK-DAG: %[[TRUNC:.+]] = trunc i128 %b to i8
// CHECK-DAG: %[[TRUNC:.+]] = trunc{{( nuw)?( nsw)?}} i128 %b to i8
// CHECK-DAG: shl i8 %a, %[[TRUNC]]
std::intrinsics::unchecked_shl(a, b)
}
Expand All @@ -107,7 +107,7 @@ pub unsafe fn unchecked_shr_i8_u128(a: i8, b: u128) -> i8 {

// CHECK-DAG: %[[INRANGE:.+]] = icmp ult i128 %b, 8
// CHECK-DAG: tail call void @llvm.assume(i1 %[[INRANGE]])
// CHECK-DAG: %[[TRUNC:.+]] = trunc i128 %b to i8
// CHECK-DAG: %[[TRUNC:.+]] = trunc{{( nuw)?( nsw)?}} i128 %b to i8
// CHECK-DAG: ashr i8 %a, %[[TRUNC]]
std::intrinsics::unchecked_shr(a, b)
}