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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:18:32 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:18:32 +0000 |
commit | 4547b622d8d29df964fa2914213088b148c498fc (patch) | |
tree | 9fc6b25f3c3add6b745be9a2400a6e96140046e9 /src/test/mir-opt/issue_101973.rs | |
parent | Releasing progress-linux version 1.66.0+dfsg1-1~progress7.99u1. (diff) | |
download | rustc-4547b622d8d29df964fa2914213088b148c498fc.tar.xz rustc-4547b622d8d29df964fa2914213088b148c498fc.zip |
Merging upstream version 1.67.1+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/mir-opt/issue_101973.rs')
-rw-r--r-- | src/test/mir-opt/issue_101973.rs | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/src/test/mir-opt/issue_101973.rs b/src/test/mir-opt/issue_101973.rs new file mode 100644 index 000000000..216659a23 --- /dev/null +++ b/src/test/mir-opt/issue_101973.rs @@ -0,0 +1,20 @@ +// compile-flags: -O -C debug-assertions=on +// This needs inlining followed by ConstProp to reproduce, so we cannot use "unit-test". + +#[inline] +pub fn imm8(x: u32) -> u32 { + let mut out = 0u32; + out |= (x >> 0) & 0xff; + out +} + +// EMIT_MIR issue_101973.inner.ConstProp.diff +#[inline(never)] +pub fn inner(fields: u32) -> i64 { + imm8(fields).rotate_right(((fields >> 8) & 0xf) << 1) as i32 as i64 +} + +fn main() { + let val = inner(0xe32cf20f); + assert_eq!(val as u64, 0xfffffffff0000000); +} |