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).
70 lines
2.7 KiB
C
70 lines
2.7 KiB
C
// RUN: %clang_cc1 %s -O0 -fsanitize=shift-exponent -emit-llvm -std=c2x -triple=x86_64-unknown-linux -o - | FileCheck %s
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// Checking that the code generation is using the unextended/untruncated
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// exponent values and capping the values accordingly
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// CHECK-LABEL: define{{.*}} i32 @test_left_variable
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int test_left_variable(unsigned _BitInt(5) b, unsigned _BitInt(2) e) {
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// CHECK: load i8
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// CHECK: [[E_REG:%.+]] = trunc i8 {{.*}} to [[E_SIZE:i2]]
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// CHECK: icmp ule [[E_SIZE]] [[E_REG]], -1,
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return b << e;
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}
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// CHECK-LABEL: define{{.*}} i32 @test_right_variable
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int test_right_variable(unsigned _BitInt(2) b, unsigned _BitInt(3) e) {
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// CHECK: load i8
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// CHECK: [[E_REG:%.+]] = trunc i8 {{.*}} to [[E_SIZE:i3]]
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// CHECK: icmp ule [[E_SIZE]] [[E_REG]], 1,
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return b >> e;
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}
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// Old code generation would give false positives on left shifts when:
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// value(e) > (width(b) - 1 % 2 ** width(e))
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// CHECK-LABEL: define{{.*}} i32 @test_left_literal
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int test_left_literal(unsigned _BitInt(5) b) {
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// CHECK-NOT: br i1 false, label %cont, label %handler.shift_out_of_bounds
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// CHECK: br i1 true, label %cont, label %handler.shift_out_of_bounds
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return b << 3uwb;
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}
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// Old code generation would give false positives on right shifts when:
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// (value(e) % 2 ** width(b)) < width(b)
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// CHECK-LABEL: define{{.*}} i32 @test_right_literal
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int test_right_literal(unsigned _BitInt(2) b) {
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// CHECK-NOT: br i1 true, label %cont, label %handler.shift_out_of_bounds
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// CHECK: br i1 false, label %cont, label %handler.shift_out_of_bounds
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return b >> 4uwb;
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}
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// CHECK-LABEL: define{{.*}} i32 @test_signed_left_variable
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int test_signed_left_variable(unsigned _BitInt(15) b, _BitInt(2) e) {
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// CHECK: load i8
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// CHECK: [[E_REG:%.+]] = trunc i8 {{.*}} to [[E_SIZE:i2]]
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// CHECK: icmp ule [[E_SIZE]] [[E_REG]], 1,
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return b << e;
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}
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// CHECK-LABEL: define{{.*}} i32 @test_signed_right_variable
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int test_signed_right_variable(unsigned _BitInt(32) b, _BitInt(4) e) {
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// CHECK: load i8
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// CHECK: [[E_REG:%.+]] = trunc i8 {{.*}} to [[E_SIZE:i4]]
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// CHECK: icmp ule [[E_SIZE]] [[E_REG]], 7,
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return b >> e;
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}
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// CHECK-LABEL: define{{.*}} i32 @test_signed_left_literal
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int test_signed_left_literal(unsigned _BitInt(16) b) {
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// CHECK-NOT: br i1 true, label %cont, label %handler.shift_out_of_bounds
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// CHECK: br i1 false, label %cont, label %handler.shift_out_of_bounds
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return b << (_BitInt(4))-2wb;
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}
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// CHECK-LABEL: define{{.*}} i32 @test_signed_right_literal
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int test_signed_right_literal(unsigned _BitInt(16) b) {
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// CHECK-NOT: br i1 true, label %cont, label %handler.shift_out_of_bounds
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// CHECK: br i1 false, label %cont, label %handler.shift_out_of_bounds
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return b >> (_BitInt(4))-8wb;
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}
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