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| author | Guillaume Gomez <guillaume1.gomez@gmail.com> | 2025-07-21 14:34:12 +0200 |
|---|---|---|
| committer | Guillaume Gomez <guillaume1.gomez@gmail.com> | 2025-07-22 14:28:48 +0200 |
| commit | a27f3e3fd1e4d16160f8885b6b06665b5319f56c (patch) | |
| tree | b033935392cbadf6f85d2dbddf433a88e323aeeb /tests/codegen-llvm/sroa-fragment-debuginfo.rs | |
| parent | ed93c1783b404d728d4809973a0550eb33cd293f (diff) | |
| download | rust-a27f3e3fd1e4d16160f8885b6b06665b5319f56c.tar.gz rust-a27f3e3fd1e4d16160f8885b6b06665b5319f56c.zip | |
Rename `tests/codegen` into `tests/codegen-llvm`
Diffstat (limited to 'tests/codegen-llvm/sroa-fragment-debuginfo.rs')
| -rw-r--r-- | tests/codegen-llvm/sroa-fragment-debuginfo.rs | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/tests/codegen-llvm/sroa-fragment-debuginfo.rs b/tests/codegen-llvm/sroa-fragment-debuginfo.rs new file mode 100644 index 00000000000..0413cf96894 --- /dev/null +++ b/tests/codegen-llvm/sroa-fragment-debuginfo.rs @@ -0,0 +1,46 @@ +//@ compile-flags: -g -Zmir-opt-level=0 -Zmir-enable-passes=+ScalarReplacementOfAggregates +//@ compile-flags: -Cno-prepopulate-passes +// +// Tested offsets are only correct for x86_64. +//@ only-x86_64 + +#![crate_type = "lib"] + +pub struct ExtraSlice<'input> { + slice: &'input [u8], + extra: u32, +} + +#[no_mangle] +pub fn extra(s: &[u8]) { + // CHECK: void @extra( + // CHECK: %slice.dbg.spill1 = alloca [4 x i8], + // CHECK: %slice.dbg.spill = alloca [16 x i8], + // CHECK: %s.dbg.spill = alloca [16 x i8], + // CHECK: dbg{{.}}declare({{(metadata )?}}ptr %s.dbg.spill, {{(metadata )?}}![[S_EXTRA:.*]], {{(metadata )?}}!DIExpression() + // CHECK: dbg{{.}}declare({{(metadata )?}}ptr %slice.dbg.spill, {{(metadata )?}}![[SLICE_EXTRA:.*]], {{(metadata )?}}!DIExpression(DW_OP_LLVM_fragment, 0, 128) + // CHECK: dbg{{.}}declare({{(metadata )?}}ptr %slice.dbg.spill1, {{(metadata )?}}![[SLICE_EXTRA]], {{(metadata )?}}!DIExpression(DW_OP_LLVM_fragment, 128, 32) + let slice = ExtraSlice { slice: s, extra: s.len() as u32 }; +} + +struct Zst; + +pub struct ZstSlice<'input> { + slice: &'input [u8], + extra: Zst, +} + +#[no_mangle] +pub fn zst(s: &[u8]) { + // The field `extra` is a ZST. The fragment for the field `slice` encompasses the whole + // variable, so is not a fragment. In that case, the variable must have no fragment. + + // CHECK: void @zst( + // CHECK-NOT: dbg{{.}}declare({{(metadata )?}}ptr %slice.dbg.spill, {{(metadata )?}}!{}, {{(metadata )?}}!DIExpression(DW_OP_LLVM_fragment, + // CHECK: dbg{{.}}declare({{(metadata )?}}ptr %{{.*}}, {{(metadata )?}}![[SLICE_ZST:.*]], {{(metadata )?}}!DIExpression() + // CHECK-NOT: dbg{{.}}declare({{(metadata )?}}ptr %{{.*}}, {{(metadata )?}}![[SLICE_ZST]], + let slice = ZstSlice { slice: s, extra: Zst }; +} + +// CHECK: ![[S_EXTRA]] = !DILocalVariable(name: "s", +// CHECK: ![[SLICE_EXTRA]] = !DILocalVariable(name: "slice", |