mirror of https://github.com/rust-lang/rust
23 lines
551 B
Rust
23 lines
551 B
Rust
// skip-filecheck
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// EMIT_MIR_FOR_EACH_PANIC_STRATEGY
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//@ compile-flags: -O -C debug-assertions=on
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// This needs inlining followed by GVN to reproduce, so we cannot use "test-mir-pass".
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#[inline]
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pub fn imm8(x: u32) -> u32 {
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let mut out = 0u32;
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out |= (x >> 0) & 0xff;
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out
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}
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// EMIT_MIR issue_101973.inner.GVN.diff
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#[inline(never)]
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pub fn inner(fields: u32) -> i64 {
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imm8(fields).rotate_right(((fields >> 8) & 0xf) << 1) as i32 as i64
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}
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fn main() {
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let val = inner(0xe32cf20f);
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assert_eq!(val as u64, 0xfffffffff0000000);
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}
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