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1; RUN: opt < %s -aa-pipeline=basic-aa -passes='gvn,tsan' -S | FileCheck %s2; TSAN conflicts with load widening. Make sure the load widening is off with -tsan.3 4; 32-bit little endian target.5target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128-n8:16:32"6 7%struct_of_8_bytes_4_aligned = type { i32, i8, i8, i8, i8}8 9@f = global %struct_of_8_bytes_4_aligned zeroinitializer, align 410 11; Accessing bytes 4 and 6, not ok to widen to i32 if sanitize_thread is set.12 13define i32 @test_widening_bad(ptr %P) nounwind ssp noredzone sanitize_thread {14entry:15 %tmp = load i8, ptr getelementptr inbounds (%struct_of_8_bytes_4_aligned, ptr @f, i64 0, i32 1), align 416 %conv = zext i8 %tmp to i3217 %tmp1 = load i8, ptr getelementptr inbounds (%struct_of_8_bytes_4_aligned, ptr @f, i64 0, i32 3), align 118 %conv2 = zext i8 %tmp1 to i3219 %add = add nsw i32 %conv, %conv220 ret i32 %add21; CHECK: @test_widening_bad22; CHECK: call void @__tsan_read123; CHECK: call void @__tsan_read124; CHECK-NOT: call void @__tsan_read425; CHECK: ret i3226}27