26 lines
662 B
Rust
26 lines
662 B
Rust
//! Regression test for #142519
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//@ only-x86_64
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//@ compile-flags: -O
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//@ min-llvm-version: 22
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#![crate_type = "lib"]
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// CHECK-LABEL: @mul3
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// CHECK: phi <4 x i8>
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// CHECK: load <4 x i8>
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// CHECK: add <4 x i8>
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// CHECK: store <4 x i8>
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#[no_mangle]
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pub fn mul3(previous: &[[u8; 4]], current: &mut [[u8; 4]]) {
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let mut c_bpp = [0u8; 4];
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for i in 0..previous.len() {
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current[i][0] = current[i][0].wrapping_add(c_bpp[0]);
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current[i][1] = current[i][1].wrapping_add(c_bpp[1]);
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current[i][2] = current[i][2].wrapping_add(c_bpp[2]);
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current[i][3] = current[i][3].wrapping_add(c_bpp[3]);
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c_bpp = previous[i];
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}
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}
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