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codegen tests: Tolerate nuw nsw on trunc

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llvm/llvm-project#87910 infers `nuw` and `nsw` on some `trunc`
instructions we're doing `FileCheck` on. Tolerate but don't require them
to support both release and head LLVM.
This commit is contained in:
Matthew Maurer 2024-04-11 17:16:27 +00:00
parent 72fe8a0f00
commit e70cf014b8
2 changed files with 5 additions and 5 deletions
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2
tests/codegen/ascii-char.rs
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@ -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]]

8
tests/codegen/unchecked_shifts.rs
View File

@ -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)
}
@ -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)
}
@ -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)
}
@ -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)
}