Please use GitHub pull requests for new patches. Phabricator shutdown timeline

Differential D131575 Diff 453355 llvm/test/Instrumentation/HWAddressSanitizer/RISCV/alloca-with-calls.ll

Changeset View

				; Test alloca instrumentation when tags are generated by HWASan function.
				;
				; RUN: opt < %s -passes=hwasan -hwasan-generate-tags-with-calls -S \| FileCheck %s

				target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
				target triple = "riscv64-unknown-linux"

				declare void @use32(i32*)

				define void @test_alloca() sanitize_hwaddress {
				; CHECK-LABEL: @test_alloca(
				; CHECK: %[[BC:[^ ]]] = bitcast { i32, [12 x i8] } %x to i32*
				; CHECK: %[[T1:[^ ]*]] = call i8 @__hwasan_generate_tag()
				; CHECK: %[[A:[^ ]*]] = zext i8 %[[T1]] to i64
				; CHECK: %[[B:[^ ]]] = ptrtoint i32 %[[BC]] to i64
				; CHECK: %[[C:[^ ]*]] = shl i64 %[[A]], 56
				; CHECK: or i64 %[[B]], %[[C]]

				entry:
				%x = alloca i32, align 4
				call void @use32(i32* nonnull %x)
				ret void
				}