vasilito
cb424d7448
verify-patch-sanity.py validates every active recipe .patch has internally- consistent hunk line counts — catching the 'malformed patch at line N' failure at commit/CI/preflight time instead of hours into a cook. This cycle hit that class three times (qtwaylandscanner, sddm, xwayland), each only discovered when cookbook tried to apply the patch. Running it across the repo found 29 latent malformed patches (validated against GNU patch: e.g. relibc/P3-sysv-ipc reproduces 'malformed patch at line 22'). They were harmless only because they sit in vendored recipes (baked, not re- applied) — but would fail on any version-bump re-derivation. --fix recounts the hunk headers (body untouched) and repaired all 29. Wired into build-preflight.sh (Phase 1.0D) and redbear-ci.yml, with a unit test (test-patch-sanity.sh). Skips archived/legacy trees and unvalidatable formats (empty placeholders, bare-@@ git hunks).
51 lines
2.7 KiB
C
51 lines
2.7 KiB
C
// NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py
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/// Check that the alignment builtins handle array-to-pointer decay
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// RUN: %clang_cc1 -triple=x86_64-unknown-unknown -o - -emit-llvm %s | FileCheck %s
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extern int func(char *c);
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// CHECK-LABEL: @test_array(
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// CHECK-NEXT: entry:
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// CHECK-NEXT: [[BUF:%.*]] = alloca [1024 x i8], align 16
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// CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds [1024 x i8], ptr [[BUF]], i64 0, i64 44
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// CHECK-NEXT: [[ALIGNED_RESULT:%.*]] = call ptr @llvm.ptrmask.p0.i64(ptr [[ARRAYIDX]], i64 -16)
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// CHECK-NEXT: [[CALL:%.*]] = call i32 @func(ptr noundef [[ALIGNED_RESULT]])
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// CHECK-NEXT: [[ARRAYIDX1:%.*]] = getelementptr inbounds [1024 x i8], ptr [[BUF]], i64 0, i64 22
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// CHECK-NEXT: [[OVER_BOUNDARY:%.*]] = getelementptr inbounds i8, ptr [[ARRAYIDX1]], i64 31
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// CHECK-NEXT: [[ALIGNED_RESULT2:%.*]] = call ptr @llvm.ptrmask.p0.i64(ptr [[OVER_BOUNDARY]], i64 -32)
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// CHECK-NEXT: [[CALL3:%.*]] = call i32 @func(ptr noundef [[ALIGNED_RESULT2]])
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// CHECK-NEXT: [[ARRAYIDX4:%.*]] = getelementptr inbounds [1024 x i8], ptr [[BUF]], i64 0, i64 16
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// CHECK-NEXT: [[SRC_ADDR:%.*]] = ptrtoint ptr [[ARRAYIDX4]] to i64
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// CHECK-NEXT: [[SET_BITS:%.*]] = and i64 [[SRC_ADDR]], 63
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// CHECK-NEXT: [[IS_ALIGNED:%.*]] = icmp eq i64 [[SET_BITS]], 0
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// CHECK-NEXT: [[CONV:%.*]] = zext i1 [[IS_ALIGNED]] to i32
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// CHECK-NEXT: ret i32 [[CONV]]
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//
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int test_array(void) {
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char buf[1024];
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func(__builtin_align_down(&buf[44], 16));
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func(__builtin_align_up(&buf[22], 32));
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return __builtin_is_aligned(&buf[16], 64);
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}
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// CHECK-LABEL: @test_array_should_not_mask(
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// CHECK-NEXT: entry:
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// CHECK-NEXT: [[BUF:%.*]] = alloca [1024 x i8], align 32
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// CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds [1024 x i8], ptr [[BUF]], i64 0, i64 64
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// CHECK-NEXT: [[ALIGNED_RESULT:%.*]] = call ptr @llvm.ptrmask.p0.i64(ptr [[ARRAYIDX]], i64 -16)
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// CHECK-NEXT: [[CALL:%.*]] = call i32 @func(ptr noundef [[ALIGNED_RESULT]])
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// CHECK-NEXT: [[ARRAYIDX1:%.*]] = getelementptr inbounds [1024 x i8], ptr [[BUF]], i64 0, i64 32
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// CHECK-NEXT: [[OVER_BOUNDARY:%.*]] = getelementptr inbounds i8, ptr [[ARRAYIDX1]], i64 31
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// CHECK-NEXT: [[ALIGNED_RESULT2:%.*]] = call ptr @llvm.ptrmask.p0.i64(ptr [[OVER_BOUNDARY]], i64 -32)
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// CHECK-NEXT: [[CALL3:%.*]] = call i32 @func(ptr noundef [[ALIGNED_RESULT2]])
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// CHECK-NEXT: ret i32 1
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//
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int test_array_should_not_mask(void) {
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_Alignas(32) char buf[1024];
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// TODO: The align_up and align_down calls should be folded to no-ops
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func(__builtin_align_down(&buf[64], 16));
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func(__builtin_align_up(&buf[32], 32));
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// This expression can be constant-evaluated:
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return __builtin_is_aligned(&buf[64], 32);
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}
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