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Rollup merge of #68937 - ecstatic-morse:unchecked-intrinsics-test, r=RalfJung

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Test failure of unchecked arithmetic intrinsics in const eval

Test that the unchecked arithmetic intrinsics that were made unstably const in #68809 emit an error during const-eval if given invalid input.

Addresses [this comment](https://github.com/rust-lang/rust/pull/68809#discussion_r375753066).

r? @RalfJung
This commit is contained in:
Yuki Okushi 2020-02-12 18:55:39 +09:00 committed by GitHub
commit 4b82b51213
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2 changed files with 119 additions and 41 deletions
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22
src/test/ui/consts/const-int-unchecked.rs
View File

@ -1,4 +1,5 @@
#![feature(core_intrinsics)]
#![feature(const_int_unchecked_arith)]
use std::intrinsics;
@ -117,4 +118,25 @@ const SHR_I64_NEG_RANDOM: i64 = unsafe { intrinsics::unchecked_shr(5_i64, -30) }
const SHR_I128_NEG_RANDOM: i128 = unsafe { intrinsics::unchecked_shr(5_i128, -93) };
//~^ ERROR any use of this value will cause an error
// Other arithmetic functions:
const _: u16 = unsafe { std::intrinsics::unchecked_add(40000u16, 30000) };
//~^ ERROR any use of this value will cause an error
const _: u32 = unsafe { std::intrinsics::unchecked_sub(14u32, 22) };
//~^ ERROR any use of this value will cause an error
const _: u16 = unsafe { std::intrinsics::unchecked_mul(300u16, 250u16) };
//~^ ERROR any use of this value will cause an error
const _: i32 = unsafe { std::intrinsics::unchecked_div(1, 0) };
//~^ ERROR any use of this value will cause an error
const _: i32 = unsafe { std::intrinsics::unchecked_div(i32::min_value(), -1) };
//~^ ERROR any use of this value will cause an error
const _: i32 = unsafe { std::intrinsics::unchecked_rem(1, 0) };
//~^ ERROR any use of this value will cause an error
const _: i32 = unsafe { std::intrinsics::unchecked_rem(i32::min_value(), -1) };
//~^ ERROR any use of this value will cause an error
fn main() {}

138
src/test/ui/consts/const-int-unchecked.stderr
View File

@ -1,5 +1,5 @@
error: any use of this value will cause an error
--> $DIR/const-int-unchecked.rs:14:29
--> $DIR/const-int-unchecked.rs:15:29
|
LL | const SHL_U8: u8 = unsafe { intrinsics::unchecked_shl(5_u8, 8) };
| ----------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---
@ -9,7 +9,7 @@ LL | const SHL_U8: u8 = unsafe { intrinsics::unchecked_shl(5_u8, 8) };
= note: `#[deny(const_err)]` on by default
error: any use of this value will cause an error
--> $DIR/const-int-unchecked.rs:16:31
--> $DIR/const-int-unchecked.rs:17:31
|
LL | const SHL_U16: u16 = unsafe { intrinsics::unchecked_shl(5_u16, 16) };
| ------------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---
@ -17,7 +17,7 @@ LL | const SHL_U16: u16 = unsafe { intrinsics::unchecked_shl(5_u16, 16) };
| Overflowing shift by 16 in `unchecked_shl`
error: any use of this value will cause an error
--> $DIR/const-int-unchecked.rs:18:31
--> $DIR/const-int-unchecked.rs:19:31
|
LL | const SHL_U32: u32 = unsafe { intrinsics::unchecked_shl(5_u32, 32) };
| ------------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---
@ -25,7 +25,7 @@ LL | const SHL_U32: u32 = unsafe { intrinsics::unchecked_shl(5_u32, 32) };
| Overflowing shift by 32 in `unchecked_shl`
error: any use of this value will cause an error
--> $DIR/const-int-unchecked.rs:20:31
--> $DIR/const-int-unchecked.rs:21:31
|
LL | const SHL_U64: u64 = unsafe { intrinsics::unchecked_shl(5_u64, 64) };
| ------------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---
@ -33,7 +33,7 @@ LL | const SHL_U64: u64 = unsafe { intrinsics::unchecked_shl(5_u64, 64) };
| Overflowing shift by 64 in `unchecked_shl`
error: any use of this value will cause an error
--> $DIR/const-int-unchecked.rs:22:33
--> $DIR/const-int-unchecked.rs:23:33
|
LL | const SHL_U128: u128 = unsafe { intrinsics::unchecked_shl(5_u128, 128) };
| --------------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---
@ -41,7 +41,7 @@ LL | const SHL_U128: u128 = unsafe { intrinsics::unchecked_shl(5_u128, 128) };
| Overflowing shift by 128 in `unchecked_shl`
error: any use of this value will cause an error
--> $DIR/const-int-unchecked.rs:27:29
--> $DIR/const-int-unchecked.rs:28:29
|
LL | const SHL_I8: i8 = unsafe { intrinsics::unchecked_shl(5_i8, 8) };
| ----------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---
@ -49,7 +49,7 @@ LL | const SHL_I8: i8 = unsafe { intrinsics::unchecked_shl(5_i8, 8) };
| Overflowing shift by 8 in `unchecked_shl`
error: any use of this value will cause an error
--> $DIR/const-int-unchecked.rs:29:31
--> $DIR/const-int-unchecked.rs:30:31
|
LL | const SHL_I16: i16 = unsafe { intrinsics::unchecked_shl(5_16, 16) };
| ------------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---
@ -57,7 +57,7 @@ LL | const SHL_I16: i16 = unsafe { intrinsics::unchecked_shl(5_16, 16) };
| Overflowing shift by 16 in `unchecked_shl`
error: any use of this value will cause an error
--> $DIR/const-int-unchecked.rs:31:31
--> $DIR/const-int-unchecked.rs:32:31
|
LL | const SHL_I32: i32 = unsafe { intrinsics::unchecked_shl(5_i32, 32) };
| ------------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---
@ -65,7 +65,7 @@ LL | const SHL_I32: i32 = unsafe { intrinsics::unchecked_shl(5_i32, 32) };
| Overflowing shift by 32 in `unchecked_shl`
error: any use of this value will cause an error
--> $DIR/const-int-unchecked.rs:33:31
--> $DIR/const-int-unchecked.rs:34:31
|
LL | const SHL_I64: i64 = unsafe { intrinsics::unchecked_shl(5_i64, 64) };
| ------------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---
@ -73,7 +73,7 @@ LL | const SHL_I64: i64 = unsafe { intrinsics::unchecked_shl(5_i64, 64) };
| Overflowing shift by 64 in `unchecked_shl`
error: any use of this value will cause an error
--> $DIR/const-int-unchecked.rs:35:33
--> $DIR/const-int-unchecked.rs:36:33
|
LL | const SHL_I128: i128 = unsafe { intrinsics::unchecked_shl(5_i128, 128) };
| --------------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---
@ -81,7 +81,7 @@ LL | const SHL_I128: i128 = unsafe { intrinsics::unchecked_shl(5_i128, 128) };
| Overflowing shift by 128 in `unchecked_shl`
error: any use of this value will cause an error
--> $DIR/const-int-unchecked.rs:40:33
--> $DIR/const-int-unchecked.rs:41:33
|
LL | const SHL_I8_NEG: i8 = unsafe { intrinsics::unchecked_shl(5_i8, -1) };
| --------------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---
@ -89,7 +89,7 @@ LL | const SHL_I8_NEG: i8 = unsafe { intrinsics::unchecked_shl(5_i8, -1) };
| Overflowing shift by 255 in `unchecked_shl`
error: any use of this value will cause an error
--> $DIR/const-int-unchecked.rs:42:35
--> $DIR/const-int-unchecked.rs:43:35
|
LL | const SHL_I16_NEG: i16 = unsafe { intrinsics::unchecked_shl(5_16, -1) };
| ----------------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---
@ -97,7 +97,7 @@ LL | const SHL_I16_NEG: i16 = unsafe { intrinsics::unchecked_shl(5_16, -1) };
| Overflowing shift by 65535 in `unchecked_shl`
error: any use of this value will cause an error
--> $DIR/const-int-unchecked.rs:44:35
--> $DIR/const-int-unchecked.rs:45:35
|
LL | const SHL_I32_NEG: i32 = unsafe { intrinsics::unchecked_shl(5_i32, -1) };
| ----------------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---
@ -105,7 +105,7 @@ LL | const SHL_I32_NEG: i32 = unsafe { intrinsics::unchecked_shl(5_i32, -1) };
| Overflowing shift by 4294967295 in `unchecked_shl`
error: any use of this value will cause an error
--> $DIR/const-int-unchecked.rs:46:35
--> $DIR/const-int-unchecked.rs:47:35
|
LL | const SHL_I64_NEG: i64 = unsafe { intrinsics::unchecked_shl(5_i64, -1) };
| ----------------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---
@ -113,7 +113,7 @@ LL | const SHL_I64_NEG: i64 = unsafe { intrinsics::unchecked_shl(5_i64, -1) };
| Overflowing shift by 18446744073709551615 in `unchecked_shl`
error: any use of this value will cause an error
--> $DIR/const-int-unchecked.rs:48:37
--> $DIR/const-int-unchecked.rs:49:37
|
LL | const SHL_I128_NEG: i128 = unsafe { intrinsics::unchecked_shl(5_i128, -1) };
| ------------------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---
@ -121,7 +121,7 @@ LL | const SHL_I128_NEG: i128 = unsafe { intrinsics::unchecked_shl(5_i128, -1) }
| Overflowing shift by 340282366920938463463374607431768211455 in `unchecked_shl`
error: any use of this value will cause an error
--> $DIR/const-int-unchecked.rs:54:40
--> $DIR/const-int-unchecked.rs:55:40
|
LL | const SHL_I8_NEG_RANDOM: i8 = unsafe { intrinsics::unchecked_shl(5_i8, -6) };
| ---------------------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---
@ -129,7 +129,7 @@ LL | const SHL_I8_NEG_RANDOM: i8 = unsafe { intrinsics::unchecked_shl(5_i8, -6)
| Overflowing shift by 250 in `unchecked_shl`
error: any use of this value will cause an error
--> $DIR/const-int-unchecked.rs:56:42
--> $DIR/const-int-unchecked.rs:57:42
|
LL | const SHL_I16_NEG_RANDOM: i16 = unsafe { intrinsics::unchecked_shl(5_16, -13) };
| -----------------------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---
@ -137,7 +137,7 @@ LL | const SHL_I16_NEG_RANDOM: i16 = unsafe { intrinsics::unchecked_shl(5_16, -1
| Overflowing shift by 65523 in `unchecked_shl`
error: any use of this value will cause an error
--> $DIR/const-int-unchecked.rs:58:42
--> $DIR/const-int-unchecked.rs:59:42
|
LL | const SHL_I32_NEG_RANDOM: i32 = unsafe { intrinsics::unchecked_shl(5_i32, -25) };
| -----------------------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---
@ -145,7 +145,7 @@ LL | const SHL_I32_NEG_RANDOM: i32 = unsafe { intrinsics::unchecked_shl(5_i32, -
| Overflowing shift by 4294967271 in `unchecked_shl`
error: any use of this value will cause an error
--> $DIR/const-int-unchecked.rs:60:42
--> $DIR/const-int-unchecked.rs:61:42
|
LL | const SHL_I64_NEG_RANDOM: i64 = unsafe { intrinsics::unchecked_shl(5_i64, -30) };
| -----------------------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---
@ -153,7 +153,7 @@ LL | const SHL_I64_NEG_RANDOM: i64 = unsafe { intrinsics::unchecked_shl(5_i64, -
| Overflowing shift by 18446744073709551586 in `unchecked_shl`
error: any use of this value will cause an error
--> $DIR/const-int-unchecked.rs:62:44
--> $DIR/const-int-unchecked.rs:63:44
|
LL | const SHL_I128_NEG_RANDOM: i128 = unsafe { intrinsics::unchecked_shl(5_i128, -93) };
| -------------------------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---
@ -161,7 +161,7 @@ LL | const SHL_I128_NEG_RANDOM: i128 = unsafe { intrinsics::unchecked_shl(5_i128
| Overflowing shift by 340282366920938463463374607431768211363 in `unchecked_shl`
error: any use of this value will cause an error
--> $DIR/const-int-unchecked.rs:69:29
--> $DIR/const-int-unchecked.rs:70:29
|
LL | const SHR_U8: u8 = unsafe { intrinsics::unchecked_shr(5_u8, 8) };
| ----------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---
@ -169,7 +169,7 @@ LL | const SHR_U8: u8 = unsafe { intrinsics::unchecked_shr(5_u8, 8) };
| Overflowing shift by 8 in `unchecked_shr`
error: any use of this value will cause an error
--> $DIR/const-int-unchecked.rs:71:31
--> $DIR/const-int-unchecked.rs:72:31
|
LL | const SHR_U16: u16 = unsafe { intrinsics::unchecked_shr(5_u16, 16) };
| ------------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---
@ -177,7 +177,7 @@ LL | const SHR_U16: u16 = unsafe { intrinsics::unchecked_shr(5_u16, 16) };
| Overflowing shift by 16 in `unchecked_shr`
error: any use of this value will cause an error
--> $DIR/const-int-unchecked.rs:73:31
--> $DIR/const-int-unchecked.rs:74:31
|
LL | const SHR_U32: u32 = unsafe { intrinsics::unchecked_shr(5_u32, 32) };
| ------------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---
@ -185,7 +185,7 @@ LL | const SHR_U32: u32 = unsafe { intrinsics::unchecked_shr(5_u32, 32) };
| Overflowing shift by 32 in `unchecked_shr`
error: any use of this value will cause an error
--> $DIR/const-int-unchecked.rs:75:31
--> $DIR/const-int-unchecked.rs:76:31
|
LL | const SHR_U64: u64 = unsafe { intrinsics::unchecked_shr(5_u64, 64) };
| ------------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---
@ -193,7 +193,7 @@ LL | const SHR_U64: u64 = unsafe { intrinsics::unchecked_shr(5_u64, 64) };
| Overflowing shift by 64 in `unchecked_shr`
error: any use of this value will cause an error
--> $DIR/const-int-unchecked.rs:77:33
--> $DIR/const-int-unchecked.rs:78:33
|
LL | const SHR_U128: u128 = unsafe { intrinsics::unchecked_shr(5_u128, 128) };
| --------------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---
@ -201,7 +201,7 @@ LL | const SHR_U128: u128 = unsafe { intrinsics::unchecked_shr(5_u128, 128) };
| Overflowing shift by 128 in `unchecked_shr`
error: any use of this value will cause an error
--> $DIR/const-int-unchecked.rs:82:29
--> $DIR/const-int-unchecked.rs:83:29
|
LL | const SHR_I8: i8 = unsafe { intrinsics::unchecked_shr(5_i8, 8) };
| ----------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---
@ -209,7 +209,7 @@ LL | const SHR_I8: i8 = unsafe { intrinsics::unchecked_shr(5_i8, 8) };
| Overflowing shift by 8 in `unchecked_shr`
error: any use of this value will cause an error
--> $DIR/const-int-unchecked.rs:84:31
--> $DIR/const-int-unchecked.rs:85:31
|
LL | const SHR_I16: i16 = unsafe { intrinsics::unchecked_shr(5_16, 16) };
| ------------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---
@ -217,7 +217,7 @@ LL | const SHR_I16: i16 = unsafe { intrinsics::unchecked_shr(5_16, 16) };
| Overflowing shift by 16 in `unchecked_shr`
error: any use of this value will cause an error
--> $DIR/const-int-unchecked.rs:86:31
--> $DIR/const-int-unchecked.rs:87:31
|
LL | const SHR_I32: i32 = unsafe { intrinsics::unchecked_shr(5_i32, 32) };
| ------------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---
@ -225,7 +225,7 @@ LL | const SHR_I32: i32 = unsafe { intrinsics::unchecked_shr(5_i32, 32) };
| Overflowing shift by 32 in `unchecked_shr`
error: any use of this value will cause an error
--> $DIR/const-int-unchecked.rs:88:31
--> $DIR/const-int-unchecked.rs:89:31
|
LL | const SHR_I64: i64 = unsafe { intrinsics::unchecked_shr(5_i64, 64) };
| ------------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---
@ -233,7 +233,7 @@ LL | const SHR_I64: i64 = unsafe { intrinsics::unchecked_shr(5_i64, 64) };
| Overflowing shift by 64 in `unchecked_shr`
error: any use of this value will cause an error
--> $DIR/const-int-unchecked.rs:90:33
--> $DIR/const-int-unchecked.rs:91:33
|
LL | const SHR_I128: i128 = unsafe { intrinsics::unchecked_shr(5_i128, 128) };
| --------------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---
@ -241,7 +241,7 @@ LL | const SHR_I128: i128 = unsafe { intrinsics::unchecked_shr(5_i128, 128) };
| Overflowing shift by 128 in `unchecked_shr`
error: any use of this value will cause an error
--> $DIR/const-int-unchecked.rs:95:33
--> $DIR/const-int-unchecked.rs:96:33
|
LL | const SHR_I8_NEG: i8 = unsafe { intrinsics::unchecked_shr(5_i8, -1) };
| --------------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---
@ -249,7 +249,7 @@ LL | const SHR_I8_NEG: i8 = unsafe { intrinsics::unchecked_shr(5_i8, -1) };
| Overflowing shift by 255 in `unchecked_shr`
error: any use of this value will cause an error
--> $DIR/const-int-unchecked.rs:97:35
--> $DIR/const-int-unchecked.rs:98:35
|
LL | const SHR_I16_NEG: i16 = unsafe { intrinsics::unchecked_shr(5_16, -1) };
| ----------------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---
@ -257,7 +257,7 @@ LL | const SHR_I16_NEG: i16 = unsafe { intrinsics::unchecked_shr(5_16, -1) };
| Overflowing shift by 65535 in `unchecked_shr`
error: any use of this value will cause an error
--> $DIR/const-int-unchecked.rs:99:35
--> $DIR/const-int-unchecked.rs:100:35
|
LL | const SHR_I32_NEG: i32 = unsafe { intrinsics::unchecked_shr(5_i32, -1) };
| ----------------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---
@ -265,7 +265,7 @@ LL | const SHR_I32_NEG: i32 = unsafe { intrinsics::unchecked_shr(5_i32, -1) };
| Overflowing shift by 4294967295 in `unchecked_shr`
error: any use of this value will cause an error
--> $DIR/const-int-unchecked.rs:101:35
--> $DIR/const-int-unchecked.rs:102:35
|
LL | const SHR_I64_NEG: i64 = unsafe { intrinsics::unchecked_shr(5_i64, -1) };
| ----------------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---
@ -273,7 +273,7 @@ LL | const SHR_I64_NEG: i64 = unsafe { intrinsics::unchecked_shr(5_i64, -1) };
| Overflowing shift by 18446744073709551615 in `unchecked_shr`
error: any use of this value will cause an error
--> $DIR/const-int-unchecked.rs:103:37
--> $DIR/const-int-unchecked.rs:104:37
|
LL | const SHR_I128_NEG: i128 = unsafe { intrinsics::unchecked_shr(5_i128, -1) };
| ------------------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---
@ -281,7 +281,7 @@ LL | const SHR_I128_NEG: i128 = unsafe { intrinsics::unchecked_shr(5_i128, -1) }
| Overflowing shift by 340282366920938463463374607431768211455 in `unchecked_shr`
error: any use of this value will cause an error
--> $DIR/const-int-unchecked.rs:109:40
--> $DIR/const-int-unchecked.rs:110:40
|
LL | const SHR_I8_NEG_RANDOM: i8 = unsafe { intrinsics::unchecked_shr(5_i8, -6) };
| ---------------------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---
@ -289,7 +289,7 @@ LL | const SHR_I8_NEG_RANDOM: i8 = unsafe { intrinsics::unchecked_shr(5_i8, -6)
| Overflowing shift by 250 in `unchecked_shr`
error: any use of this value will cause an error
--> $DIR/const-int-unchecked.rs:111:42
--> $DIR/const-int-unchecked.rs:112:42
|
LL | const SHR_I16_NEG_RANDOM: i16 = unsafe { intrinsics::unchecked_shr(5_16, -13) };
| -----------------------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---
@ -297,7 +297,7 @@ LL | const SHR_I16_NEG_RANDOM: i16 = unsafe { intrinsics::unchecked_shr(5_16, -1
| Overflowing shift by 65523 in `unchecked_shr`
error: any use of this value will cause an error
--> $DIR/const-int-unchecked.rs:113:42
--> $DIR/const-int-unchecked.rs:114:42
|
LL | const SHR_I32_NEG_RANDOM: i32 = unsafe { intrinsics::unchecked_shr(5_i32, -25) };
| -----------------------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---
@ -305,7 +305,7 @@ LL | const SHR_I32_NEG_RANDOM: i32 = unsafe { intrinsics::unchecked_shr(5_i32, -
| Overflowing shift by 4294967271 in `unchecked_shr`
error: any use of this value will cause an error
--> $DIR/const-int-unchecked.rs:115:42
--> $DIR/const-int-unchecked.rs:116:42
|
LL | const SHR_I64_NEG_RANDOM: i64 = unsafe { intrinsics::unchecked_shr(5_i64, -30) };
| -----------------------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---
@ -313,12 +313,68 @@ LL | const SHR_I64_NEG_RANDOM: i64 = unsafe { intrinsics::unchecked_shr(5_i64, -
| Overflowing shift by 18446744073709551586 in `unchecked_shr`
error: any use of this value will cause an error
--> $DIR/const-int-unchecked.rs:117:44
--> $DIR/const-int-unchecked.rs:118:44
|
LL | const SHR_I128_NEG_RANDOM: i128 = unsafe { intrinsics::unchecked_shr(5_i128, -93) };
| -------------------------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---
| |
| Overflowing shift by 340282366920938463463374607431768211363 in `unchecked_shr`
error: aborting due to 40 previous errors
error: any use of this value will cause an error
--> $DIR/const-int-unchecked.rs:123:25
|
LL | const _: u16 = unsafe { std::intrinsics::unchecked_add(40000u16, 30000) };
| ------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---
| |
| Overflow executing `unchecked_add`
error: any use of this value will cause an error
--> $DIR/const-int-unchecked.rs:126:25
|
LL | const _: u32 = unsafe { std::intrinsics::unchecked_sub(14u32, 22) };
| ------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---
| |
| Overflow executing `unchecked_sub`
error: any use of this value will cause an error
--> $DIR/const-int-unchecked.rs:129:25
|
LL | const _: u16 = unsafe { std::intrinsics::unchecked_mul(300u16, 250u16) };
| ------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---
| |
| Overflow executing `unchecked_mul`
error: any use of this value will cause an error
--> $DIR/const-int-unchecked.rs:132:25
|
LL | const _: i32 = unsafe { std::intrinsics::unchecked_div(1, 0) };
| ------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---
| |
| dividing by zero
error: any use of this value will cause an error
--> $DIR/const-int-unchecked.rs:134:25
|
LL | const _: i32 = unsafe { std::intrinsics::unchecked_div(i32::min_value(), -1) };
| ------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---
| |
| Overflow executing `unchecked_div`
error: any use of this value will cause an error
--> $DIR/const-int-unchecked.rs:137:25
|
LL | const _: i32 = unsafe { std::intrinsics::unchecked_rem(1, 0) };
| ------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---
| |
| calculating the remainder with a divisor of zero
error: any use of this value will cause an error
--> $DIR/const-int-unchecked.rs:139:25
|
LL | const _: i32 = unsafe { std::intrinsics::unchecked_rem(i32::min_value(), -1) };
| ------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---
| |
| Overflow executing `unchecked_rem`
error: aborting due to 47 previous errors